[107654] in North American Network Operators' Group
RE: duplicate packet
daemon@ATHENA.MIT.EDU (Darden, Patrick S.)
Wed Sep 10 08:01:37 2008
Date: Wed, 10 Sep 2008 08:01:32 -0400
In-Reply-To: <473679.44924.qm@web57413.mail.re1.yahoo.com>
From: "Darden, Patrick S." <darden@armc.org>
To: "chloe K" <chloekcy2000@yahoo.ca>,
<nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
Check your ARP tables, local and on intervening switches/routers. Make =
sure there are no duplicate entries for that IP. If you note the =
response time, the second packet is always higher which might be =
indicative. I would also check for a botched MITM a la C&A.
Even if there is no obvious ARP table manglement, you might try flushing =
the local and intervening caches.
Try the ping from another host, another subnet, another segment, get =
more info.
--p
-----Original Message-----
From: chloe K [mailto:chloekcy2000@yahoo.ca]
Sent: Wednesday, September 10, 2008 6:46 AM
To: nanog@nanog.org
Subject: duplicate packet=20
Hi all
When I ping the ip, I get the duplicate=20
I check the ip is just one. Why it happens?
Thank you
64 bytes from 192.168.0.95: icmp_seq=3D1 ttl=3D63 time=3D0.344 ms
64 bytes from 192.168.0.95: icmp_seq=3D1 ttl=3D63 time=3D0.401 ms (DUP!)
64 bytes from 192.168.0.95: icmp_seq=3D2 ttl=3D63 time=3D0.296 ms
64 bytes from 192.168.0.95: icmp_seq=3D2 ttl=3D63 time=3D0.328 ms (DUP!)
64 bytes from 192.168.0.95: icmp_seq=3D3 ttl=3D63 time=3D0.291 ms
64 bytes from 192.168.0.95: icmp_seq=3D3 ttl=3D63 time=3D0.316 ms (DUP!)
64 bytes from 192.168.0.95: icmp_seq=3D4 ttl=3D63 time=3D0.279 ms
64 bytes from 192.168.0.95: icmp_seq=3D4 ttl=3D63 time=3D0.309 ms (DUP!)
64 bytes from 192.168.0.95: icmp_seq=3D5 ttl=3D63 time=3D0.271 ms
64 bytes from 192.168.0.95: icmp_seq=3D5 ttl=3D63 time=3D0.299 ms (DUP!)
=20
=20
=20
---------------------------------
=20
=20
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and bookmark your favourite sites. Download it now! =20
