
From manav.bhatia@alcatel-lucent.com  Wed Aug 24 07:38:39 2011
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From: "Bhatia, Manav (Manav)" <manav.bhatia@alcatel-lucent.com>
To: Sam Hartman <hartmans-ietf@mit.edu>, "ietf@ietf.org" <ietf@ietf.org>
Date: Wed, 24 Aug 2011 20:09:40 +0530
Thread-Topic: [karp] Last Call: <draft-ietf-ospf-auth-trailer-ospfv3-05.txt> (Supporting Authentication Trailer for OSPFv3) to Proposed Standard
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Cc: "ospf@ietf.org" <ospf@ietf.org>, "karp@ietf.org" <karp@ietf.org>
Subject: Re: [OSPF] [karp] Last Call: <draft-ietf-ospf-auth-trailer-ospfv3-05.txt>	(Supporting Authentication Trailer for OSPFv3) to Proposed Standard
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Hi,

[clipped]

>=20
> Based on this review I have a few recommendations for the=20
> OSPF v3 authentication trailers document.
>=20
> 1) The v3 authentication trailer takes a step back in the=20
> ability to rekey security associations both from OSPF v2,=20
> from IPsec for OSPF v3 and from=20

[ ..]

>=20
> I believe that draft-ietf-ospf-auth-trailer-ospfv3-05 needs=20
> to be revised to require implementation behavior at least as=20
> flexible as draft-ietf-karp-crypto-tables. That is,=20
> associated with each security association is a time for when=20
> sending packets can start with a given SA and for when it=20
> must stop. Infinity and 0 should of course be supported for=20
> the appropriate times.
>=20
> 2) I notice terminology inconsistency between key identifier =20
> and security association identifier. This should probably be=20
> cleaned up, although it's not that big of a deal.

http://tools.ietf.org/id/draft-ietf-ospf-auth-trailer-ospfv3-06.txt address=
es the first two comments.

>=20
>=20
> 3) draft-ietf-ospf-analysis says that we are going to solve=20
> related protocol attacks. That is, we recognize that it's=20
> quite likely that some people will use the same preshared key=20
> both for OSPF authentication and for something else. We need=20
> to mix something into the key or hash or something that is=20
> unlikely to appear in any other use in order to make it=20
> cryptographically unlikely for the resulting OSPF=20
> authentication hash to be a hash useful in some other=20
> protocol or for the hash from some other protocol to be=20
> useful in OSPF.  This draft does not do that.  One possible=20
> way to solve this would be to prepend a constant in front of=20
> the key in the key preparation step or a constant in front of=20
> every packet that gets hashed. The constant should be the=20
> same for OSPFv3 and not used for any other purpose.

We had an offline discussion with Sam and others and we seem to have conver=
ged at this text:

We change the hex that's repeated in the Apad from 0x878FE1F3 to 0x878FE1F4=
. This value will be unique for OSPFv3. Other protocols that use this mecha=
nism must use a different value of Apad - you could think of this as "salti=
ng" the Apad.

OLD TEXT in Sec 4.4:

Apad is a value which is the same length as the hash output or message dige=
st.  The first 16 octets contain the IPv6 source address followed by the he=
xadecimal value 0x878FE1F3 repeated (L-16)/4 times.
This implies that hash output is always a length of at least 16 octets.

NEW TEXT:

Apad is a value which is the same length as the hash output or message dige=
st.  The first 16 octets contain the IPv6 source address followed by the he=
xadecimal value 0x878FE1F4 repeated (L-16)/4 times.
This implies that hash output is always a length of at least 16 octets.

Cheers, Manav=

From acee.lindem@ericsson.com  Wed Aug 24 07:43:01 2011
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From: Acee Lindem <acee.lindem@ericsson.com>
To: "Bhatia, Manav (Manav)" <manav.bhatia@alcatel-lucent.com>
Date: Wed, 24 Aug 2011 10:44:00 -0400
Thread-Topic: [OSPF] [karp] Last Call: <draft-ietf-ospf-auth-trailer-ospfv3-05.txt>	(Supporting	Authentication Trailer for OSPFv3) to Proposed Standard
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Subject: Re: [OSPF] [karp] Last Call:	<draft-ietf-ospf-auth-trailer-ospfv3-05.txt>	(Supporting	Authentication Trailer for OSPFv3) to Proposed Standard
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Hi Manav,=20

On Aug 24, 2011, at 10:39 AM, Bhatia, Manav (Manav) wrote:

> Hi,
>=20
> [clipped]
>=20
>>=20
>> Based on this review I have a few recommendations for the=20
>> OSPF v3 authentication trailers document.
>>=20
>> 1) The v3 authentication trailer takes a step back in the=20
>> ability to rekey security associations both from OSPF v2,=20
>> from IPsec for OSPF v3 and from=20
>=20
> [ ..]
>=20
>>=20
>> I believe that draft-ietf-ospf-auth-trailer-ospfv3-05 needs=20
>> to be revised to require implementation behavior at least as=20
>> flexible as draft-ietf-karp-crypto-tables. That is,=20
>> associated with each security association is a time for when=20
>> sending packets can start with a given SA and for when it=20
>> must stop. Infinity and 0 should of course be supported for=20
>> the appropriate times.
>>=20
>> 2) I notice terminology inconsistency between key identifier =20
>> and security association identifier. This should probably be=20
>> cleaned up, although it's not that big of a deal.
>=20
> http://tools.ietf.org/id/draft-ietf-ospf-auth-trailer-ospfv3-06.txt =
addresses the first two comments.
>=20
>>=20
>>=20
>> 3) draft-ietf-ospf-analysis says that we are going to solve=20
>> related protocol attacks. That is, we recognize that it's=20
>> quite likely that some people will use the same preshared key=20
>> both for OSPF authentication and for something else. We need=20
>> to mix something into the key or hash or something that is=20
>> unlikely to appear in any other use in order to make it=20
>> cryptographically unlikely for the resulting OSPF=20
>> authentication hash to be a hash useful in some other=20
>> protocol or for the hash from some other protocol to be=20
>> useful in OSPF.  This draft does not do that.  One possible=20
>> way to solve this would be to prepend a constant in front of=20
>> the key in the key preparation step or a constant in front of=20
>> every packet that gets hashed. The constant should be the=20
>> same for OSPFv3 and not used for any other purpose.
>=20
> We had an offline discussion with Sam and others and we seem to have =
converged at this text:
>=20
> We change the hex that's repeated in the Apad from 0x878FE1F3 to =
0x878FE1F4. This value will be unique for OSPFv3. Other protocols that =
use this mechanism must use a different value of Apad - you could think =
of this as "salting" the Apad.

Could we simply use the OSPFv3 protocol number, 89, in the Apad, e.g., =
0x898FE1F4,  (or at least the first instance of Apad). Otherwise, we =
probably need a registry for IANA Apads.=20

Thanks,
Acee=20


>=20
> OLD TEXT in Sec 4.4:
>=20
> Apad is a value which is the same length as the hash output or message =
digest.  The first 16 octets contain the IPv6 source address followed by =
the hexadecimal value 0x878FE1F3 repeated (L-16)/4 times.
> This implies that hash output is always a length of at least 16 =
octets.
>=20
> NEW TEXT:
>=20
> Apad is a value which is the same length as the hash output or message =
digest.  The first 16 octets contain the IPv6 source address followed by =
the hexadecimal value 0x878FE1F4 repeated (L-16)/4 times.
> This implies that hash output is always a length of at least 16 =
octets.
>=20
> Cheers, Manav
> _______________________________________________
> OSPF mailing list
> OSPF@ietf.org
> https://www.ietf.org/mailman/listinfo/ospf


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From acee.lindem@ericsson.com  Wed Aug 24 07:45:27 2011
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From: Acee Lindem <acee.lindem@ericsson.com>
To: Acee Lindem <acee.lindem@ericsson.com>
Date: Wed, 24 Aug 2011 10:46:31 -0400
Thread-Topic: [OSPF] [karp] Last	Call: <draft-ietf-ospf-auth-trailer-ospfv3-05.txt>	(Supporting	Authentication Trailer for OSPFv3) to Proposed Standard
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Subject: Re: [OSPF] [karp] Last	Call:	<draft-ietf-ospf-auth-trailer-ospfv3-05.txt>	(Supporting	Authentication	Trailer for OSPFv3) to Proposed Standard
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On Aug 24, 2011, at 10:44 AM, Acee Lindem wrote:

>=20
>=20
> Hi Manav,=20
>=20
> On Aug 24, 2011, at 10:39 AM, Bhatia, Manav (Manav) wrote:
>=20
>> Hi,
>>=20
>> [clipped]
>>=20
>>>=20
>>> Based on this review I have a few recommendations for the=20
>>> OSPF v3 authentication trailers document.
>>>=20
>>> 1) The v3 authentication trailer takes a step back in the=20
>>> ability to rekey security associations both from OSPF v2,=20
>>> from IPsec for OSPF v3 and from=20
>>=20
>> [ ..]
>>=20
>>>=20
>>> I believe that draft-ietf-ospf-auth-trailer-ospfv3-05 needs=20
>>> to be revised to require implementation behavior at least as=20
>>> flexible as draft-ietf-karp-crypto-tables. That is,=20
>>> associated with each security association is a time for when=20
>>> sending packets can start with a given SA and for when it=20
>>> must stop. Infinity and 0 should of course be supported for=20
>>> the appropriate times.
>>>=20
>>> 2) I notice terminology inconsistency between key identifier =20
>>> and security association identifier. This should probably be=20
>>> cleaned up, although it's not that big of a deal.
>>=20
>> http://tools.ietf.org/id/draft-ietf-ospf-auth-trailer-ospfv3-06.txt =
addresses the first two comments.
>>=20
>>>=20
>>>=20
>>> 3) draft-ietf-ospf-analysis says that we are going to solve=20
>>> related protocol attacks. That is, we recognize that it's=20
>>> quite likely that some people will use the same preshared key=20
>>> both for OSPF authentication and for something else. We need=20
>>> to mix something into the key or hash or something that is=20
>>> unlikely to appear in any other use in order to make it=20
>>> cryptographically unlikely for the resulting OSPF=20
>>> authentication hash to be a hash useful in some other=20
>>> protocol or for the hash from some other protocol to be=20
>>> useful in OSPF.  This draft does not do that.  One possible=20
>>> way to solve this would be to prepend a constant in front of=20
>>> the key in the key preparation step or a constant in front of=20
>>> every packet that gets hashed. The constant should be the=20
>>> same for OSPFv3 and not used for any other purpose.
>>=20
>> We had an offline discussion with Sam and others and we seem to have =
converged at this text:
>>=20
>> We change the hex that's repeated in the Apad from 0x878FE1F3 to =
0x878FE1F4. This value will be unique for OSPFv3. Other protocols that =
use this mechanism must use a different value of Apad - you could think =
of this as "salting" the Apad.
>=20
> Could we simply use the OSPFv3 protocol number, 89, in the Apad, e.g., =
0x898FE1F4,  (or at least the first instance of Apad). Otherwise, we =
probably need a registry for IANA Apads.=20

I meant 0x898FE1F3 as to not change the last 3 octets of the existing =
HMAC-SHAx Apad.=20

Thanks,
Acee=20

>=20
> Thanks,
> Acee=20
>=20
>=20
>>=20
>> OLD TEXT in Sec 4.4:
>>=20
>> Apad is a value which is the same length as the hash output or =
message digest.  The first 16 octets contain the IPv6 source address =
followed by the hexadecimal value 0x878FE1F3 repeated (L-16)/4 times.
>> This implies that hash output is always a length of at least 16 =
octets.
>>=20
>> NEW TEXT:
>>=20
>> Apad is a value which is the same length as the hash output or =
message digest.  The first 16 octets contain the IPv6 source address =
followed by the hexadecimal value 0x878FE1F4 repeated (L-16)/4 times.
>> This implies that hash output is always a length of at least 16 =
octets.
>>=20
>> Cheers, Manav
>> _______________________________________________
>> OSPF mailing list
>> OSPF@ietf.org
>> https://www.ietf.org/mailman/listinfo/ospf
>=20


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From: "Bhatia, Manav (Manav)" <manav.bhatia@alcatel-lucent.com>
To: Acee Lindem <acee.lindem@ericsson.com>
Date: Wed, 24 Aug 2011 20:21:08 +0530
Thread-Topic: [OSPF] [karp] Last	Call: <draft-ietf-ospf-auth-trailer-ospfv3-05.txt>	(Supporting	Authentication Trailer for OSPFv3) to Proposed Standard
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Cc: "ospf@ietf.org" <ospf@ietf.org>, Sam Hartman <hartmans-ietf@mit.edu>, "ietf@ietf.org" <ietf@ietf.org>, "karp@ietf.org" <karp@ietf.org>
Subject: Re: [OSPF] [karp] Last	Call:	<draft-ietf-ospf-auth-trailer-ospfv3-05.txt>	(Supporting	Authentication	Trailer for OSPFv3) to Proposed Standard
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Hi Acee,

> >>=20
> >> We change the hex that's repeated in the Apad from=20
> 0x878FE1F3 to 0x878FE1F4. This value will be unique for=20
> OSPFv3. Other protocols that use this mechanism must use a=20
> different value of Apad - you could think of this as=20
> "salting" the Apad.
> >=20
> > Could we simply use the OSPFv3 protocol number, 89, in the=20
> Apad, e.g., 0x898FE1F4,  (or at least the first instance of=20
> Apad). Otherwise, we probably need a registry for IANA Apads.=20
>=20
> I meant 0x898FE1F3 as to not change the last 3 octets of the=20
> existing HMAC-SHAx Apad.=20

We would still need an IANA registry of Apads unless youre thinking of usin=
g the IP protocol type as the first octet of the Apad. If it's the latter, =
then OSPFv3 and OSPFv2 would share the same Apad, which would defeat the pu=
rpose of the whole exercise.

This would also not work for multiple protocols that ride over UDP and TCP.=
 BFD and RIP would end up using the same Apad as their IP protocol is the s=
ame.=20

We thus need a unique Apad that each standard can define if we want to prot=
ect ourselves from the attack that Sam describes.

Cheers, Manav=20

From acee.lindem@ericsson.com  Wed Aug 24 09:04:42 2011
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From: Acee Lindem <acee.lindem@ericsson.com>
To: "Bhatia, Manav (Manav)" <manav.bhatia@alcatel-lucent.com>
Date: Wed, 24 Aug 2011 12:05:42 -0400
Thread-Topic: [OSPF] [karp] Last	Call: <draft-ietf-ospf-auth-trailer-ospfv3-05.txt>	(Supporting	Authentication Trailer for OSPFv3) to Proposed Standard
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Subject: Re: [OSPF] [karp] Last	Call:	<draft-ietf-ospf-auth-trailer-ospfv3-05.txt>	(Supporting	Authentication	Trailer for OSPFv3) to Proposed Standard
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Hi Manav,

On Aug 24, 2011, at 10:51 AM, Bhatia, Manav (Manav) wrote:

> Hi Acee,
>=20
>>>>=20
>>>> We change the hex that's repeated in the Apad from=20
>> 0x878FE1F3 to 0x878FE1F4. This value will be unique for=20
>> OSPFv3. Other protocols that use this mechanism must use a=20
>> different value of Apad - you could think of this as=20
>> "salting" the Apad.
>>>=20
>>> Could we simply use the OSPFv3 protocol number, 89, in the=20
>> Apad, e.g., 0x898FE1F4,  (or at least the first instance of=20
>> Apad). Otherwise, we probably need a registry for IANA Apads.=20
>>=20
>> I meant 0x898FE1F3 as to not change the last 3 octets of the=20
>> existing HMAC-SHAx Apad.=20
>=20
> We would still need an IANA registry of Apads unless youre thinking of =
using the IP protocol type as the first octet of the Apad.

That's exactly what I'm proposing.=20

> If it's the latter, then OSPFv3 and OSPFv2 would share the same Apad, =
which would defeat the purpose of the whole exercise.

Are you forgetting about the version as the first nibble of the header?=20=


>=20
> This would also not work for multiple protocols that ride over UDP and =
TCP. BFD and RIP would end up using the same Apad as their IP protocol =
is the same.=20

UDP/TCP protocols would need a scheme that includes their well-know port =
- perhaps, the second octet of the first instance of Apad ;^).=20

>=20
> We thus need a unique Apad that each standard can define if we want to =
protect ourselves from the attack that Sam describes.

Thanks,
Acee


>=20
> Cheers, Manav=20


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From: Acee Lindem <acee.lindem@ericsson.com>
To: Acee Lindem <acee.lindem@ericsson.com>
Date: Wed, 24 Aug 2011 12:10:22 -0400
Thread-Topic: [OSPF] [karp]	Last	Call: <draft-ietf-ospf-auth-trailer-ospfv3-05.txt>	(Supporting	Authentication Trailer	for OSPFv3) to Proposed Standard
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Subject: Re: [OSPF] [karp]	Last	Call:	<draft-ietf-ospf-auth-trailer-ospfv3-05.txt>	(Supporting	Authentication	Trailer	for OSPFv3) to Proposed Standard
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On Aug 24, 2011, at 12:05 PM, Acee Lindem wrote:

> Hi Manav,
>=20
> On Aug 24, 2011, at 10:51 AM, Bhatia, Manav (Manav) wrote:
>=20
>> Hi Acee,
>>=20
>>>>>=20
>>>>> We change the hex that's repeated in the Apad from=20
>>> 0x878FE1F3 to 0x878FE1F4. This value will be unique for=20
>>> OSPFv3. Other protocols that use this mechanism must use a=20
>>> different value of Apad - you could think of this as=20
>>> "salting" the Apad.
>>>>=20
>>>> Could we simply use the OSPFv3 protocol number, 89, in the=20
>>> Apad, e.g., 0x898FE1F4,  (or at least the first instance of=20
>>> Apad). Otherwise, we probably need a registry for IANA Apads.=20
>>>=20
>>> I meant 0x898FE1F3 as to not change the last 3 octets of the=20
>>> existing HMAC-SHAx Apad.=20
>>=20
>> We would still need an IANA registry of Apads unless youre thinking =
of using the IP protocol type as the first octet of the Apad.
>=20
> That's exactly what I'm proposing.=20
>=20
>> If it's the latter, then OSPFv3 and OSPFv2 would share the same Apad, =
which would defeat the purpose of the whole exercise.
>=20
> Are you forgetting about the version as the first nibble of the =
header?=20

Meant the first byte of course - first nibble is for IPv4 vs IPv6 ;^)=20

>=20
>>=20
>> This would also not work for multiple protocols that ride over UDP =
and TCP. BFD and RIP would end up using the same Apad as their IP =
protocol is the same.=20
>=20
> UDP/TCP protocols would need a scheme that includes their well-know =
port - perhaps, the second octet of the first instance of Apad ;^).=20
>=20
>>=20
>> We thus need a unique Apad that each standard can define if we want =
to protect ourselves from the attack that Sam describes.
>=20
> Thanks,
> Acee
>=20
>=20
>>=20
>> Cheers, Manav=20
>=20
> <smime.p7s>_______________________________________________
> OSPF mailing list
> OSPF@ietf.org
> https://www.ietf.org/mailman/listinfo/ospf


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From acee.lindem@ericsson.com  Mon Aug 29 07:49:50 2011
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From: Acee Lindem <acee.lindem@ericsson.com>
To: OSPF List <ospf@ietf.org>
Date: Mon, 29 Aug 2011 10:51:09 -0400
Thread-Topic: OSPF Hybrid Interface and OSPF MANET variants 
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In Quebec City, we discussed making the following WG documents and are not =
confirming this on the OSPF list.

We had almost made this a WG document once before but delayed until we figu=
red out the relationship to OSPF MANET flooding optimizations. It affords f=
looding reduction over P2MP without the additional complexity of OSPF MANET=
.

   OSPF Hybrid Broadcast and P2MP Interface Type - draft-nsheth-ospf-hybrid=
-bcast-and-p2mp-01.txt

These documents are updates to the existing OSPF MANET experimental drafts =
with optimizations and/or adaptations for single hop networks.

Use of OSPF-MDR in Single-Hop Broadcast Networks - draft-ogier-ospf-manet-s=
ingle-hop-00.txt

   Use of the OSPF-MANET Interface in Single-Hop Broadcast Networks - draft=
-retana-ospf-manet-single-hop-01.txt

Please speak now if you feel that these should not be WG documents.

Thanks,

Acee







From acee.lindem@ericsson.com  Mon Aug 29 07:51:31 2011
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From: Acee Lindem <acee.lindem@ericsson.com>
To: OSPF List <ospf@ietf.org>
Date: Mon, 29 Aug 2011 10:52:38 -0400
Thread-Topic: OSPF Hybrid Interface and OSPF MANET variants (Corrected) 
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In Quebec City, we discussed making the following WG documents and are now =
confirming this on the OSPF list.

We had almost made the following a WG document once before but delayed unti=
l we figured out the relationship to OSPF MANET flooding optimizations. It =
affords flooding reduction over P2MP without the additional complexity of O=
SPF MANET.

  OSPF Hybrid Broadcast and P2MP Interface Type - draft-nsheth-ospf-hybrid-=
bcast-and-p2mp-01.txt

These documents are updates to the existing OSPF MANET experimental drafts =
with optimizations and/or adaptations for single hop networks.

  Use of OSPF-MDR in Single-Hop Broadcast Networks - draft-ogier-ospf-manet=
-single-hop-00.txt

  Use of the OSPF-MANET Interface in Single-Hop Broadcast Networks - draft-=
retana-ospf-manet-single-hop-01.txt

Please speak now if you feel that any of these should not be WG documents.

Thanks,

Acee






_______________________________________________
OSPF mailing list
OSPF@ietf.org
https://www.ietf.org/mailman/listinfo/ospf

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Subject: [OSPF] [Technical Errata Reported] RFC2328 (2951)
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The following errata report has been submitted for RFC2328,
"OSPF Version 2".

--------------------------------------
You may review the report below and at:
http://www.rfc-editor.org/errata_search.php?rfc=2328&eid=2951

--------------------------------------
Type: Technical
Reported by: Joel Gannett <jgannett@research.telcordia.com>

Section: 3.4

Original Text
-------------
                   Destination   RT3 adv.   RT4 adv.
                   _________________________________
                   Ia,Ib         20         27
                   N6            16         15
                   N7            20         19
                   N8            18         18
                   N9-N11,H1     29         36
                   _________________________________
                   RT5           14         8
                   RT7           20         14

              Table 6: Destinations advertised into Area 1
                        by Routers RT3 and RT4.

Corrected Text
--------------
                   Destination   RT3 adv.   RT4 adv.
                   _________________________________
                   Ia,Ib         20         27
                   N6            16         15
                   N7            20         19
                   N8            18         18
                   N9-N11,H1     29         29
                   _________________________________
                   RT5           14         8
                   RT7           20         14

              Table 6: Destinations advertised into Area 1
                        by Routers RT3 and RT4.

Notes
-----
The distance from RT4 to N9-N11,H1 should be changed from 36 to 29 to be consistent with the row above that, which shows the distance from RT3 to N8 and RT4 to N8 as the same value, 18.  The length 18 path from RT3 to N8 is RT3-RT6-RT10-N8, while the length 18 path from RT4 to N8 is RT4-RT5-RT7-RT10-N8.  The summarized N9-N11,H1 network is a distance 11 beyond that, or 29 in both cases.  The length 29 path from RT3 to N9-N11,H1 is RT3-RT6-RT10-RT11-(N9-N11,H1), and the length 29 path from RT4 to N9-N11,H1 is RT4-RT5-RT7-RT10-RT11-(N9-N11,H1).

Instructions:
-------------
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use "Reply All" to discuss whether it should be verified or
rejected. When a decision is reached, the verifying party (IESG)
can log in to change the status and edit the report, if necessary. 

--------------------------------------
RFC2328 (no draft string recorded)
--------------------------------------
Title               : OSPF Version 2
Publication Date    : April 1998
Author(s)           : J. Moy
Category            : STANDARD
Source              : Open Shortest Path First IGP
Area                : Routing
Stream              : IETF
Verifying Party     : IESG

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Subject: [OSPF] [Editorial Errata Reported] RFC2328 (2952)
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The following errata report has been submitted for RFC2328,
"OSPF Version 2".

--------------------------------------
You may review the report below and at:
http://www.rfc-editor.org/errata_search.php?rfc=2328&eid=2952

--------------------------------------
Type: Editorial
Reported by: Joel Gannett <jgannett@research.telcordia.com>

Section: 14.1

Original Text
-------------
Premature aging is also be used when unexpectedly receiving self-originated LSAs during the flooding procedure (see Section 13.4).

Corrected Text
--------------
Premature aging might also be used when unexpectedly receiving self-originated LSAs during the flooding procedure (see Section 13.4).

Notes
-----
Change "is also be used" to "might also be used."

Instructions:
-------------
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use "Reply All" to discuss whether it should be verified or
rejected. When a decision is reached, the verifying party (IESG)
can log in to change the status and edit the report, if necessary. 

--------------------------------------
RFC2328 (no draft string recorded)
--------------------------------------
Title               : OSPF Version 2
Publication Date    : April 1998
Author(s)           : J. Moy
Category            : STANDARD
Source              : Open Shortest Path First IGP
Area                : Routing
Stream              : IETF
Verifying Party     : IESG

From acee.lindem@ericsson.com  Wed Aug 31 12:57:02 2011
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From: Acee Lindem <acee.lindem@ericsson.com>
To: RFC Errata System <rfc-editor@rfc-editor.org>
Date: Wed, 31 Aug 2011 15:58:07 -0400
Thread-Topic: [Technical Errata Reported] RFC2328 (2951)
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Subject: Re: [OSPF] [Technical Errata Reported] RFC2328 (2951)
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Hi Joel,
There is a problem but actually it is R4's cost to N8 that is wrong in =
Table 6. It should be 25 rather than 18. Can this errata be edited?=20
Thanks,
Acee=20

On Aug 31, 2011, at 3:20 PM, RFC Errata System wrote:

>=20
> The following errata report has been submitted for RFC2328,
> "OSPF Version 2".
>=20
> --------------------------------------
> You may review the report below and at:
> http://www.rfc-editor.org/errata_search.php?rfc=3D2328&eid=3D2951
>=20
> --------------------------------------
> Type: Technical
> Reported by: Joel Gannett <jgannett@research.telcordia.com>
>=20
> Section: 3.4
>=20
> Original Text
> -------------
>                   Destination   RT3 adv.   RT4 adv.
>                   _________________________________
>                   Ia,Ib         20         27
>                   N6            16         15
>                   N7            20         19
>                   N8            18         18
>                   N9-N11,H1     29         36
>                   _________________________________
>                   RT5           14         8
>                   RT7           20         14
>=20
>              Table 6: Destinations advertised into Area 1
>                        by Routers RT3 and RT4.
>=20
> Corrected Text
> --------------
>                   Destination   RT3 adv.   RT4 adv.
>                   _________________________________
>                   Ia,Ib         20         27
>                   N6            16         15
>                   N7            20         19
>                   N8            18         18
>                   N9-N11,H1     29         29
>                   _________________________________
>                   RT5           14         8
>                   RT7           20         14
>=20
>              Table 6: Destinations advertised into Area 1
>                        by Routers RT3 and RT4.
>=20
> Notes
> -----
> The distance from RT4 to N9-N11,H1 should be changed from 36 to 29 to =
be consistent with the row above that, which shows the distance from RT3 =
to N8 and RT4 to N8 as the same value, 18.  The length 18 path from RT3 =
to N8 is RT3-RT6-RT10-N8, while the length 18 path from RT4 to N8 is =
RT4-RT5-RT7-RT10-N8.  The summarized N9-N11,H1 network is a distance 11 =
beyond that, or 29 in both cases.  The length 29 path from RT3 to =
N9-N11,H1 is RT3-RT6-RT10-RT11-(N9-N11,H1), and the length 29 path from =
RT4 to N9-N11,H1 is RT4-RT5-RT7-RT10-RT11-(N9-N11,H1).
>=20
> Instructions:
> -------------
> This errata is currently posted as "Reported". If necessary, please
> use "Reply All" to discuss whether it should be verified or
> rejected. When a decision is reached, the verifying party (IESG)
> can log in to change the status and edit the report, if necessary.=20
>=20
> --------------------------------------
> RFC2328 (no draft string recorded)
> --------------------------------------
> Title               : OSPF Version 2
> Publication Date    : April 1998
> Author(s)           : J. Moy
> Category            : STANDARD
> Source              : Open Shortest Path First IGP
> Area                : Routing
> Stream              : IETF
> Verifying Party     : IESG


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From acee.lindem@ericsson.com  Wed Aug 31 13:28:29 2011
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From: Acee Lindem <acee.lindem@ericsson.com>
To: RFC Errata System <rfc-editor@rfc-editor.org>
Date: Wed, 31 Aug 2011 16:28:58 -0400
Thread-Topic: [Editorial Errata Reported] RFC2328 (2952)
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Subject: Re: [OSPF] [Editorial Errata Reported] RFC2328 (2952)
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I don't believe I have an Errata Verification logon, https://www.rfc-editor=
.org/verify_login.php either so it looks like an AD will need to edit or re=
ject this errata.=20
Thanks,
Acee
On Aug 31, 2011, at 3:28 PM, RFC Errata System wrote:

>=20
> The following errata report has been submitted for RFC2328,
> "OSPF Version 2".
>=20
> --------------------------------------
> You may review the report below and at:
> http://www.rfc-editor.org/errata_search.php?rfc=3D2328&eid=3D2952
>=20
> --------------------------------------
> Type: Editorial
> Reported by: Joel Gannett <jgannett@research.telcordia.com>
>=20
> Section: 14.1
>=20
> Original Text
> -------------
> Premature aging is also be used when unexpectedly receiving self-originat=
ed LSAs during the flooding procedure (see Section 13.4).
>=20
> Corrected Text
> --------------
> Premature aging might also be used when unexpectedly receiving self-origi=
nated LSAs during the flooding procedure (see Section 13.4).
>=20
> Notes
> -----
> Change "is also be used" to "might also be used."
>=20
> Instructions:
> -------------
> This errata is currently posted as "Reported". If necessary, please
> use "Reply All" to discuss whether it should be verified or
> rejected. When a decision is reached, the verifying party (IESG)
> can log in to change the status and edit the report, if necessary.=20
>=20
> --------------------------------------
> RFC2328 (no draft string recorded)
> --------------------------------------
> Title               : OSPF Version 2
> Publication Date    : April 1998
> Author(s)           : J. Moy
> Category            : STANDARD
> Source              : Open Shortest Path First IGP
> Area                : Routing
> Stream              : IETF
> Verifying Party     : IESG


From acee.lindem@ericsson.com  Wed Aug 31 13:36:20 2011
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From: Acee Lindem <acee.lindem@ericsson.com>
To: RFC Errata System <rfc-editor@rfc-editor.org>
Date: Wed, 31 Aug 2011 16:37:31 -0400
Thread-Topic: [Editorial Errata Reported] RFC2328 (2952)
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Subject: Re: [OSPF] [Editorial Errata Reported] RFC2328 (2952)
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Hi Joel,
I agree with this errata as the existing text is grammatically incorrect. H=
owever, I believe the intended meaning of the text is clear. I'd probably u=
se "can also be used" as opposed to "might also be used".=20
Thanks,
Acee=20

On Aug 31, 2011, at 3:28 PM, RFC Errata System wrote:

>=20
> The following errata report has been submitted for RFC2328,
> "OSPF Version 2".
>=20
> --------------------------------------
> You may review the report below and at:
> http://www.rfc-editor.org/errata_search.php?rfc=3D2328&eid=3D2952
>=20
> --------------------------------------
> Type: Editorial
> Reported by: Joel Gannett <jgannett@research.telcordia.com>
>=20
> Section: 14.1
>=20
> Original Text
> -------------
> Premature aging is also be used when unexpectedly receiving self-originat=
ed LSAs during the flooding procedure (see Section 13.4).
>=20
> Corrected Text
> --------------
> Premature aging might also be used when unexpectedly receiving self-origi=
nated LSAs during the flooding procedure (see Section 13.4).
>=20
> Notes
> -----
> Change "is also be used" to "might also be used."
>=20
> Instructions:
> -------------
> This errata is currently posted as "Reported". If necessary, please
> use "Reply All" to discuss whether it should be verified or
> rejected. When a decision is reached, the verifying party (IESG)
> can log in to change the status and edit the report, if necessary.=20
>=20
> --------------------------------------
> RFC2328 (no draft string recorded)
> --------------------------------------
> Title               : OSPF Version 2
> Publication Date    : April 1998
> Author(s)           : J. Moy
> Category            : STANDARD
> Source              : Open Shortest Path First IGP
> Area                : Routing
> Stream              : IETF
> Verifying Party     : IESG


From jgannett@research.telcordia.com  Wed Aug 31 13:37:36 2011
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Subject: Re: [OSPF] [Editorial Errata Reported] RFC2328 (2952)
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Acee,

I'll submit a separate errata for Section 3.4, showing the alternate 
correction you suggested, then someone can reject the Section 3.4 errata 
I sent earlier.

By the way, my suggested change would be correct if there was a virtual 
link between RT7 and RT10, right?  The last paragraph of Section 3.4 
talks about the desirability of establishing such a virtual link, but I 
guess this is not an assumed part of the network design.

Joel Gannett

On 8/31/2011 4:28 PM, Acee Lindem wrote:
> I don't believe I have an Errata Verification logon, https://www.rfc-editor.org/verify_login.php either so it looks like an AD will need to edit or reject this errata.
> Thanks,
> Acee
> On Aug 31, 2011, at 3:28 PM, RFC Errata System wrote:
>
>> The following errata report has been submitted for RFC2328,
>> "OSPF Version 2".
>>
>> --------------------------------------
>> You may review the report below and at:
>> http://www.rfc-editor.org/errata_search.php?rfc=2328&eid=2952
>>
>> --------------------------------------
>> Type: Editorial
>> Reported by: Joel Gannett<jgannett@research.telcordia.com>
>>
>> Section: 14.1
>>
>> Original Text
>> -------------
>> Premature aging is also be used when unexpectedly receiving self-originated LSAs during the flooding procedure (see Section 13.4).
>>
>> Corrected Text
>> --------------
>> Premature aging might also be used when unexpectedly receiving self-originated LSAs during the flooding procedure (see Section 13.4).
>>
>> Notes
>> -----
>> Change "is also be used" to "might also be used."
>>
>> Instructions:
>> -------------
>> This errata is currently posted as "Reported". If necessary, please
>> use "Reply All" to discuss whether it should be verified or
>> rejected. When a decision is reached, the verifying party (IESG)
>> can log in to change the status and edit the report, if necessary.
>>
>> --------------------------------------
>> RFC2328 (no draft string recorded)
>> --------------------------------------
>> Title               : OSPF Version 2
>> Publication Date    : April 1998
>> Author(s)           : J. Moy
>> Category            : STANDARD
>> Source              : Open Shortest Path First IGP
>> Area                : Routing
>> Stream              : IETF
>> Verifying Party     : IESG

-- 
Joel W. Gannett, PhD, Senior Scientist
Telcordia Technologies
Applied Research Area
One Telcordia Drive, Room RRC 1G-306
Piscataway, NJ   08854-4151
voice (732) 699-2693
email jgannett@research.telcordia.com
web http://www.research.telcordia.com/bios/jgannett
FAX (732) 336-7015


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To: "Joel W. Gannett" <jgannett@research.telcordia.com>
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Subject: Re: [OSPF] [Editorial Errata Reported] RFC2328 (2952)
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Hi Joel,=20
On Aug 31, 2011, at 4:39 PM, Joel W. Gannett wrote:

> Acee,
>=20
> I'll submit a separate errata for Section 3.4, showing the alternate =
correction you suggested, then someone can reject the Section 3.4 errata =
I sent earlier.

Ok

>=20
> By the way, my suggested change would be correct if there was a =
virtual link between RT7 and RT10, right?

Yes - an area 2 virtual link would yield a cost of 7 rather than 14 =
between R5 and R10.=20

Thanks,
Acee

> The last paragraph of Section 3.4 talks about the desirability of =
establishing such a virtual link, but I guess this is not an assumed =
part of the network design.
>=20
> Joel Gannett
>=20
> On 8/31/2011 4:28 PM, Acee Lindem wrote:
>> I don't believe I have an Errata Verification logon, =
https://www.rfc-editor.org/verify_login.php either so it looks like an =
AD will need to edit or reject this errata.
>> Thanks,
>> Acee
>> On Aug 31, 2011, at 3:28 PM, RFC Errata System wrote:
>>=20
>>> The following errata report has been submitted for RFC2328,
>>> "OSPF Version 2".
>>>=20
>>> --------------------------------------
>>> You may review the report below and at:
>>> http://www.rfc-editor.org/errata_search.php?rfc=3D2328&eid=3D2952
>>>=20
>>> --------------------------------------
>>> Type: Editorial
>>> Reported by: Joel Gannett<jgannett@research.telcordia.com>
>>>=20
>>> Section: 14.1
>>>=20
>>> Original Text
>>> -------------
>>> Premature aging is also be used when unexpectedly receiving =
self-originated LSAs during the flooding procedure (see Section 13.4).
>>>=20
>>> Corrected Text
>>> --------------
>>> Premature aging might also be used when unexpectedly receiving =
self-originated LSAs during the flooding procedure (see Section 13.4).
>>>=20
>>> Notes
>>> -----
>>> Change "is also be used" to "might also be used."
>>>=20
>>> Instructions:
>>> -------------
>>> This errata is currently posted as "Reported". If necessary, please
>>> use "Reply All" to discuss whether it should be verified or
>>> rejected. When a decision is reached, the verifying party (IESG)
>>> can log in to change the status and edit the report, if necessary.
>>>=20
>>> --------------------------------------
>>> RFC2328 (no draft string recorded)
>>> --------------------------------------
>>> Title               : OSPF Version 2
>>> Publication Date    : April 1998
>>> Author(s)           : J. Moy
>>> Category            : STANDARD
>>> Source              : Open Shortest Path First IGP
>>> Area                : Routing
>>> Stream              : IETF
>>> Verifying Party     : IESG
>=20
> --=20
> Joel W. Gannett, PhD, Senior Scientist
> Telcordia Technologies
> Applied Research Area
> One Telcordia Drive, Room RRC 1G-306
> Piscataway, NJ   08854-4151
> voice (732) 699-2693
> email jgannett@research.telcordia.com
> web http://www.research.telcordia.com/bios/jgannett
> FAX (732) 336-7015
>=20
> _______________________________________________
> OSPF mailing list
> OSPF@ietf.org
> https://www.ietf.org/mailman/listinfo/ospf


From jgannett@research.telcordia.com  Wed Aug 31 13:48:31 2011
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Cc: "jmoy@casc.com" <jmoy@casc.com>, RFC Errata System <rfc-editor@rfc-editor.org>, "ospf@ietf.org" <ospf@ietf.org>
Subject: Re: [OSPF] [Editorial Errata Reported] RFC2328 (2952)
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Acee,

I was, honestly, a bit confused by the wording.  I thought the text 
might be trying to say that premature aging is the only thing, or the 
typical thing, that would get used.  Both changes you list sound the 
same to me, and correct the confusion.

The wording in Section 13.4 sounds to me like the router would typically 
advance the LSA's LS sequence number to one past the received LSA's LS 
sequence number, then originate a new LSA.  Premature aging, discussed 
in the final paragraph of Section 13.4, sounds like something that gets 
used only in special cases.

Joe

On 8/31/2011 4:37 PM, Acee Lindem wrote:
> Hi Joel,
> I agree with this errata as the existing text is grammatically incorrect. However, I believe the intended meaning of the text is clear. I'd probably use "can also be used" as opposed to "might also be used".
> Thanks,
> Acee
>
> On Aug 31, 2011, at 3:28 PM, RFC Errata System wrote:
>
>> The following errata report has been submitted for RFC2328,
>> "OSPF Version 2".
>>
>> --------------------------------------
>> You may review the report below and at:
>> http://www.rfc-editor.org/errata_search.php?rfc=2328&eid=2952
>>
>> --------------------------------------
>> Type: Editorial
>> Reported by: Joel Gannett<jgannett@research.telcordia.com>
>>
>> Section: 14.1
>>
>> Original Text
>> -------------
>> Premature aging is also be used when unexpectedly receiving self-originated LSAs during the flooding procedure (see Section 13.4).
>>
>> Corrected Text
>> --------------
>> Premature aging might also be used when unexpectedly receiving self-originated LSAs during the flooding procedure (see Section 13.4).
>>
>> Notes
>> -----
>> Change "is also be used" to "might also be used."
>>
>> Instructions:
>> -------------
>> This errata is currently posted as "Reported". If necessary, please
>> use "Reply All" to discuss whether it should be verified or
>> rejected. When a decision is reached, the verifying party (IESG)
>> can log in to change the status and edit the report, if necessary.
>>
>> --------------------------------------
>> RFC2328 (no draft string recorded)
>> --------------------------------------
>> Title               : OSPF Version 2
>> Publication Date    : April 1998
>> Author(s)           : J. Moy
>> Category            : STANDARD
>> Source              : Open Shortest Path First IGP
>> Area                : Routing
>> Stream              : IETF
>> Verifying Party     : IESG

-- 
Joel W. Gannett, PhD, Senior Scientist
Telcordia Technologies
Applied Research Area
One Telcordia Drive, Room RRC 1G-306
Piscataway, NJ   08854-4151
voice (732) 699-2693
email jgannett@research.telcordia.com
web http://www.research.telcordia.com/bios/jgannett
FAX (732) 336-7015


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Subject: [OSPF] [Technical Errata Reported] RFC2328 (2953)
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The following errata report has been submitted for RFC2328,
"OSPF Version 2".

--------------------------------------
You may review the report below and at:
http://www.rfc-editor.org/errata_search.php?rfc=2328&eid=2953

--------------------------------------
Type: Technical
Reported by: Joel Gannett <jgannett@research.telcordia.com>

Section: 3.4

Original Text
-------------
                   Destination   RT3 adv.   RT4 adv.
                   _________________________________
                   Ia,Ib         20         27
                   N6            16         15
                   N7            20         19
                   N8            18         18
                   N9-N11,H1     29         36
                   _________________________________
                   RT5           14         8
                   RT7           20         14

              Table 6: Destinations advertised into Area 1
                        by Routers RT3 and RT4.

Corrected Text
--------------
                   Destination   RT3 adv.   RT4 adv.
                   _________________________________
                   Ia,Ib         20         27
                   N6            16         15
                   N7            20         19
                   N8            18         25
                   N9-N11,H1     29         36
                   _________________________________
                   RT5           14         8
                   RT7           20         14

              Table 6: Destinations advertised into Area 1
                        by Routers RT3 and RT4.

Notes
-----
The distance from RT4 to N8 should be changed from 18 to 25.  Unless there is a virtual link between RT7 and RT10, the shortest path from RT4 to N8 is 25, not 18.  Although a virtual link from RT7 and RT10 is discussed in the last paragraph of Section 3.4, it is not assume part of the network design.  Moreover, this change is needed to make the N9-N11,H1 row consistent with the N8 row, as each entry in the N9-N11,H1 row must be 11 greater than the same-column entry in the N8 row.

Instructions:
-------------
This errata is currently posted as "Reported". If necessary, please
use "Reply All" to discuss whether it should be verified or
rejected. When a decision is reached, the verifying party (IESG)
can log in to change the status and edit the report, if necessary. 

--------------------------------------
RFC2328 (no draft string recorded)
--------------------------------------
Title               : OSPF Version 2
Publication Date    : April 1998
Author(s)           : J. Moy
Category            : STANDARD
Source              : Open Shortest Path First IGP
Area                : Routing
Stream              : IETF
Verifying Party     : IESG
