From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rusty Russell Subject: Re: A problem with a large static arp table Date: Thu, 01 Jul 2004 11:12:46 +1000 Sender: netdev-bounce@oss.sgi.com Message-ID: <1088644366.8180.2.camel@bach> References: <1835705734.20040630181449@techas.lt> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Cc: netdev@oss.sgi.com Return-path: To: Roman Zagustin In-Reply-To: <1835705734.20040630181449@techas.lt> Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org On Thu, 2004-07-01 at 01:14, Roman Zagustin wrote: > Hello! Hi, Not really my area; pinging netdev to see if they can help. > I have a router with >800 static ip/mac records. > It does not work :( > With small table it is fine. > The kernel is 2.6 (tried with different patches and versions > 2.4 - the same) > > Just for example(real): > > root@stargate:/proc/sys/net/ipv4/neigh/default# arp -n|grep 172.16.3.230 > 172.16.3.230 ether 00:50:04:6C:50:9E CM eth3 > root@stargate:/proc/sys/net/ipv4/neigh/default# > root@stargate:/proc/sys/net/ipv4/neigh/default# tcpdump -i eth3 host 172.16.3.230 -e > tcpdump: listening on eth3 > 15:38:10.660144 0:6:29:ee:c3:d8 0:2:b3:b4:34:e2 ip 448: 172.16.3.230.1060 > medium.cs.microlink.lt.http: P 1268207798:1268208192(394) ack 3537529644 win 64240 (DF) > 15:38:10.674698 0:6:29:ee:c3:d8 0:2:b3:b4:34:e2 ip 453: 172.16.3.230.1077 > medium.cs.microlink.lt.http: P 1279539300:1279539699(399) ack 2683450794 win 63095 (DF) > > There are no errors/warnings in the log files about neighbour table. > > >From the server I can't ping the 172.16.3.230, but it can ping the > server. In general, server do not check the ip/mac table at all > when forwarding received packets. > > I don't know where is the problem :( -- Anyone who quotes me in their signature is an idiot -- Rusty Russell