All, I'm trying to understand why a Vyatta 6.4 collection of routers is carping about the following as martian routes: 113.107.174.14 27.73.1.159 94.248.215.60 95.26.105.161 They don't look like they fall in the traditional martian space. I also wondered if they were addresses without a reverse route, but they have reverse paths in our routing tables (full routes from AS 10796 and 11530). Any thoughts? EKG
On Jun 28, 2012, at 10:42 AM, Eric Germann <egermann@limanews.com> wrote:
All,
I'm trying to understand why a Vyatta 6.4 collection of routers is carping about the following as martian routes:
113.107.174.14 27.73.1.159 94.248.215.60 95.26.105.161
They don't look like they fall in the traditional martian space. I also wondered if they were addresses without a reverse route, but they have reverse paths in our routing tables (full routes from AS 10796 and 11530).
Any thoughts?
EKG
Do you have routing-table entries which cover those IPs? Try "ip route show <ip>" as root. Linux NET/4 stack considers (as far as IPv4/IPv6 go) anything that is not in the routing table or an immediate neighbour as "martian." William
Well, I did when I checked them shortly after I saw the log messages. Wondering now if the routes for those bounced and in the "middle" of the bounce, they're considered martian. Thanks! EKG -----Original Message----- From: William Pitcock [mailto:nenolod@systeminplace.net] Sent: Thursday, June 28, 2012 11:45 AM To: Eric Germann Cc: nanog@nanog.org Subject: Re: Question about Martians on Vyatta On Jun 28, 2012, at 10:42 AM, Eric Germann <egermann@limanews.com> wrote:
All,
I'm trying to understand why a Vyatta 6.4 collection of routers is carping about the following as martian routes:
113.107.174.14 27.73.1.159 94.248.215.60 95.26.105.161
They don't look like they fall in the traditional martian space. I also wondered if they were addresses without a reverse route, but they have reverse paths in our routing tables (full routes from AS 10796 and 11530).
Any thoughts?
EKG
Do you have routing-table entries which cover those IPs? Try "ip route show <ip>" as root. Linux NET/4 stack considers (as far as IPv4/IPv6 go) anything that is not in the routing table or an immediate neighbour as "martian." William
Hi, On Jun 28, 2012, at 10:50 AM, Eric Germann <egermann@limanews.com> wrote:
Well, I did when I checked them shortly after I saw the log messages.
Wondering now if the routes for those bounced and in the "middle" of the bounce, they're considered martian.
Yes, that sounds reasonable. Anything that is returned on an interface which doesn't match what it should be in the routing table would also be considered "martian" if routing table entries apply to specific interfaces. Are you running BGP with a default route? That might be causing it as Linux network stack prefers more specific entries, so if you're getting a bounce over a different interface... William
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Eric Germann -
William Pitcock