nanog mailing list archives
RE: Revealed: The Internet's well known BGP behavior
From: John Lee <john () internetassociatesllc com>
Date: Wed, 27 Aug 2008 22:47:53 -0500
Adrian, The traceroute utility that I used gave me a list of hops that the packet I was interested in transited and a time when it transited the hop. When the TTL was reached it would terminate the listing. When ever I had performance issues on my networks or with my networks links it would indicate if the standard route was being taken or another one. When certain links went down several additional hops would be added to the list. John (ISDN) Lee ________________________________________ From: Adrian Chadd [adrian () creative net au] Sent: Wednesday, August 27, 2008 11:32 PM To: John Lee Cc: Patrick W. Gilmore; NANOG list Subject: Re: Revealed: The Internet's well known BGP behavior On Wed, Aug 27, 2008, John Lee wrote:
Patrick, VPN's and MPLS control intermediate hops and IPsec and SSL do not allow the info to be seen. Rewriting the TTL only hides the number of hop count, trace route will still show the hops the packet has transited.
No, traceroute shows the hops which returned "time to live exceeded." This only maps to "the hops the packet has transited" if the TTL is setup and decremented correctly. Adrian
Current thread:
- RE: Revealed: The Internet's well known BGP behavior John Lee (Aug 27)
- Re: Revealed: The Internet's well known BGP behavior Patrick W. Gilmore (Aug 27)
- RE: Revealed: The Internet's well known BGP behavior John Lee (Aug 27)
- Re: Revealed: The Internet's well known BGP behavior Adrian Chadd (Aug 27)
- RE: Revealed: The Internet's well known BGP behavior John Lee (Aug 27)
- Re: Revealed: The Internet's well known BGP behavior Patrick W. Gilmore (Aug 27)
- RE: Revealed: The Internet's well known BGP behavior John Lee (Aug 27)
- Re: Revealed: The Internet's well known BGP behavior Patrick W. Gilmore (Aug 27)
- Re: Revealed: The Internet's well known BGP behavior Jim Popovitch (Aug 27)
- Re: Revealed: The Internet's well known BGP behavior Patrick W. Gilmore (Aug 27)
- RE: Revealed: The Internet's well known BGP behavior michael.dillon (Aug 28)
- RE: Revealed: The Internet's well known BGP behavior John Lee (Aug 27)
- Re: Revealed: The Internet's well known BGP behavior Patrick W. Gilmore (Aug 27)
- RE: Revealed: The Internet's well known BGP behavior michael.dillon (Aug 28)
- Re: Revealed: The Internet's well known BGP behavior Patrick Giagnocavo (Aug 27)
- Message not available
- RE: Revealed: The Internet's well known BGP behavior Hank Nussbacher (Aug 27)
- RE: Revealed: The Internet's well known BGP behavior Jon Lewis (Aug 27)