Messages in this thread | | | Subject | Re: routing problem b/w 2.2 and PM3 | From | Andi Kleen <> | Date | 01 Jul 1999 22:27:05 +0200 |
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soren@cinternet.net (Soren Harward) writes: > > It's taken me almost 2 months to figure out exactly what's been going > on, since the problem is rare (ie, it has no discernable pattern among > dialups, specific usernames, times of day, or phases of the moon -- I > had my witch doctor check) and thus far I haven't been able to duplicate > it at will. Has anyone else seen a problem like this? Does large > numbers of "ip_rt_advice: route from 206.112.217.XXX dropped" messages > in the web server kernel message log have anything to do with it? I > thought about hacking static routes from the web server thru the > portmaster to the dialups, but we have about a dozen static-IP customers > (not including the admins) who could end up behind either PM3, so that > fix won't work for them, and they have reported similar problems. > Right now, my inclination is to enable OSPF between our PM3's and our > Cisco 2500, but I'm not sure that that will work because it doesn't do > anything for the web server. And all this worked before the 2.2 > upgrade, and I have yet to have someone have a problem with accessing > the rest of the 209.50.110 network (addresses 200 to 249) which are > bound to our NT server (also on the same Ethernet segment and also with > an address in the 206.112.217.0 network -- same as the web server). So > the problem right now seems to be the web server alone, and a kernel > problem with the web server to narrow it down. I'm basically at my > wits' end with a handful of upset customers [1] who see this a "my site > being down again" and won't follow the workaround instructions I've > given them [2]. Can anybody help? Will OSPF solve the problem, or > is it indeed something wrong with the web server? Do I need to do > something as drastic as running OSPF on the web server too (yikes!)?
I bet you have forwarding turned on the web server.
Try echo 0 > /proc/sys/net/ipv4/conf/all/rp_filter
To avoid the "route dropped" messages you could try
echo 0 > /proc/sys/net/ipv4/conf/all/accept_redirects
-Andi
-- This is like TV. I don't like TV.
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