Q:
how to troubleshoot packet loss in VPN?
while within a site to site VPN have packet lost, how to troubleshoot?
ASKED:
Jun 10 2009 5:50 PM GMT
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A:
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You can use “tracert” to find out which node is causing the problem and send report to you ISP end.
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tracert may not give you the best picture. A better tool included in Windows XP is pathping.
pathping is an excellent troubleshooting utility to look at latency & packet loss along a path.
Usage: pathping [-g host-list] [-h maximum_hops] [-i address] [-n]
[-p period] [-q num_queries] [-w timeout] [-P] [-R] [-T]
[-4] [-6] target_name
Options:
-g host-list Loose source route along host-list.
-h maximum_hops Maximum number of hops to search for target.
-i address Use the specified source address.
-n Do not resolve addresses to hostnames.
-p period Wait period milliseconds between pings.
-q num_queries Number of queries per hop.
-w timeout Wait timeout milliseconds for each reply.
-P Test for RSVP PATH connectivity.
-R Test if each hop is RSVP aware.
-T Test connectivity to each hop with Layer-2 priority tags.
-4 Force using IPv4.
-6 Force using IPv6.
It’s not a gui but it does give very valuable information within a single utility about the path between a source & destination.
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