nanog mailing list archives
Re: rfc 1812 third party address on traceroute
From: Octavio Alvarez <octalnanog () alvarezp org>
Date: Wed, 1 Jun 2016 14:03:41 -0700
On 05/31/2016 11:22 AM, William Herrin wrote:
I'm not sure if you mean that, if sent through C it should have the source addres of A, or that it should actually be sent through A regardless of the routing table (which sounds better to me).That doesn't make sense. There may be multiple next hops out A. If the next hop in the FIB is out C, how would the router pick the next hop to send to out A?
Back to the physical address that sent the TTL-offending packet.
Anyway, Randy's comment was about source address selection, not routing. With the packet coming from S into interface A, he'd prefer that the ICMP error message be sourced from the IP address assigned to A, not the IP address assigned to C or R.
Thanks.
Current thread:
- Re: rfc 1812 third party address on traceroute Marc Storck (Jun 01)
- Re: rfc 1812 third party address on traceroute William Herrin (Jun 01)
- Re: rfc 1812 third party address on traceroute Marc Storck (Jun 01)
- <Possible follow-ups>
- Re: rfc 1812 third party address on traceroute Octavio Alvarez (Jun 01)
- Re: rfc 1812 third party address on traceroute Hugo Slabbert (Jun 01)
- Re: rfc 1812 third party address on traceroute William Herrin (Jun 01)
- Re: rfc 1812 third party address on traceroute Octavio Alvarez (Jun 01)
- Re: rfc 1812 third party address on traceroute Randy Bush (Jun 01)
- Re: rfc 1812 third party address on traceroute Randy Bush (Jun 05)
- Re: rfc 1812 third party address on traceroute Josh Reynolds (Jun 05)
- Re: rfc 1812 third party address on traceroute Randy Bush (Jun 05)
- Re: rfc 1812 third party address on traceroute Josh Reynolds (Jun 05)
- Re: rfc 1812 third party address on traceroute William Herrin (Jun 01)