From: Ned (ccie2004@excite.com)
Date: Wed May 11 2005 - 15:09:48 GMT-3
Or if this is a managed service provider and acting as the core between customer sites than it could be normal behaviour based on the configuration of the SP routers. --- On Wed 05/11, Brant I. Stevens < branto@branto.com > wrote:
From: Brant I. Stevens [mailto: branto@branto.com]To: wwalla@gmail.com, K.Sarangan@cwgoindia.comCc: ccielab@groupstudy.comDate: Wed, 11 May 2005 12:49:22 -0400Subject: Re: Help Required on Interpreting Tracert.I've seen that traceroute behavior when going through a PIX (old code...Don't remember the version.)On 5/11/05 10:12 AM, "William Walla" wrote:> I had a situation like that, it was a routing loop. It was caused by> a VPN tunnel site-to-site that I did not know existed there...> hope that helps> > On 5/11/05, K Sarangan wrote:>> Hi,>> >> I need help on the below Tracert messages from a Windows PC.>> >> Iam confused on the two things below:->> >> 1) Why Two Next Hops are coming for the same IP. (10.8.98.158).>> Iam not sure what is that since it is a customer network.>> >> 2) Why 10.3.1.40 (last trace) is tracing 4 times. Is it because it is>> getting timeouts in the third poll and the fourt!
h
time it got it reply?>> >> 6 831 ms 940 ms * 10.3.1.40>> >> 7 892 ms 874 ms * 10.3.1.40>> >> 8 * 914 ms * 10.3.1.40>> >> 9 743 ms * 854 ms 10.3.1.40>> >> Traces are shown below:->> >> May 07 19:14 IST>> >> Tracing route to 10.3.1.40 over a maximum of 30 hops>> >> 1 <1 ms <1 ms <1 ms 172.16.4.251>> >> 2 1 ms <1 ms 1 ms 172.16.1.50>> >> 3 928 ms 881 ms * 10.3.2.89>> >> 4 779 ms * 940 ms 10.8.98.158>> >> 5 888 ms 932 ms 949 ms 10.8.98.158>> >> 6 835 ms 869 ms 929 ms 10.3.1.40>> >> Trace complete.>> >> C:Documents and Settingsshiva>tracert -d 10.3.1.40>> >> Tracing route to 10.3.1.40 over a maximum of 30 hops>> >> 1 <1 ms <1 ms <1 ms 172.16.4.251>> >> 2 1 ms 1 ms 1 ms 172.16.1.50>> >> 3 790 ms * 951 ms 10.3.2.89>> >> 4 !
*
1000 ms 907 ms 10.8.98.158>> >> 5 * 629 ms 551 ms 10.8.98.158>> >> 6 913 ms 1041 ms 823 ms 10.3.1.40>> >> Trace complete.>> >> C:Documents and Settingsshiva>tracert -d 10.3.1.40>> >> Tracing route to 10.3.1.40 over a maximum of 30 hops>> >> 1 5 ms <1 ms <1 ms 172.16.4.251>> >> 2 1 ms 1 ms 1 ms 172.16.1.50>> >> 3 * * 617 ms 10.3.2.89>> >> 4 * * 848 ms 10.8.98.158>> >> 5 939 ms 874 ms 881 ms 10.8.98.158>> >> 6 937 ms * 844 ms 10.3.1.40>> >> Trace complete.>> >> 19:16 IST>> >> C:Documents and Settingsshiva>tracert -d 10.3.1.40>> >> Tracing route to 10.3.1.40 over a maximum of 30 hops>> >> 1 <1 ms <1 ms <1 ms 172.16.4.251>> >> 2 1 ms <1 ms 1 ms 172.16.1.50>> >> 3 387 ms 385 ms 389 ms 10.3.2.89>> >> 4 384 ms 413 ms 389 ms
10.8.98.158>> >> 5 384 ms 386 ms 396 ms 10.8.98.158>> >> 6 384 ms 430 ms 386 ms 10.3.1.40>> >> Trace complete.>> >> 19:17 IST>> >> Tracing route to 10.3.1.40 over a maximum of 30 hops>> >> 1 <1 ms <1 ms <1 ms 172.16.4.251>> >> 2 <1 ms 2 ms 1 ms 172.16.1.50>> >> 3 572 ms 660 ms 838 ms 10.3.2.89>> >> 4 838 ms * 725 ms 10.8.98.158>> >> 5 603 ms 682 ms 823 ms 10.8.98.158>> >> 6 842 ms 817 ms 810 ms 10.3.1.40>> >> Trace complete.>> >> 19:18 IST>> >> C:Documents and Settingsshiva>tracert -d 10.3.1.40>> >> Tracing route to 10.3.1.40 over a maximum of 30 hops>> >> 1 <1 ms <1 ms <1 ms 172.16.4.251>> >> 2 2 ms <1 ms <1 ms 172.16.1.50>> >> 3 901 ms 959 ms 887 ms 10.3.2.89>> >> 4 909 ms 969 ms 994 ms 10.8.98.158>> >> 5 92!
3
ms 824 ms 958 ms 10.8.98.158>> >> 6 831 ms 940 ms * 10.3.1.40>> >> 7 892 ms 874 ms * 10.3.1.40>> >> 8 * 914 ms * 10.3.1.40>> >> 9 743 ms * 854 ms 10.3.1.40>> >> Trace complete.>> >> Thanks in Advance,>> >> Sarangan>> >> This e-mail has been scanned for viruses by the Cable & Wireless e-mail>> security system - powered by MessageLabs. For more information on a proactive>> managed e-mail security service, visit http://www.cw.com/uk/emailprotection/>>; >> The information contained in this e-mail is confidential and may also be>> subject to legal privilege. It is intended only for the recipient(s) named>> above. If you are not named above as a recipient, you must not read, copy,>> disclose, forward or otherwise use the information contained in this email.>> If>> you have received this e-mail in error, please notify the sender
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