Subject: [ippm] method to determine remote liveness without ping

From: Jing Shen <[email-masked]>
Date: Mon, 13 Oct 2003 17:53:08 +0800 (CST)

Hi,

Usually we determine remote system liveness by 'ping'
to its IP address. If ping packet is filtered out by
firewall, how could we determine remote end liveness?
how could we measure 'availability' of a leased line
with packet filtering enabled?

thanks 

jing shen

 ' spamcontrol '

=====
Jing Shen

State Key Lab of CAD&CG
ZheJiang University(YuQuan)
HangZhou, ZheJiang Province 310027
P.R.China

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