On Wed, Mar 11, 2009 at 01:07:06PM +0000, Gerard Hooton wrote: > Hello, > Fist my system: > > Linux uepc004 2.6.24-1-686 #1 SMP Thu May 8 02:16:39 UTC 2008 i686 > GNU/Linux > > Network: > eth0 Link encap:Ethernet HWaddr 00:30:48:29:e9:40 > inet addr:143.239.184.13 Bcast:143.239.255.255 > Mask:255.255.0.0 > inet6 addr: fe80::230:48ff:fe29:e940/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:1751152 errors:0 dropped:0 overruns:0 frame:0 > TX packets:33579 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:174917895 (166.8 MiB) TX bytes:19228996 (18.3 MiB) > Base address:0x3000 Memory:f8200000-f8220000 > > eth0:0 Link encap:Ethernet HWaddr 00:30:48:29:e9:40 > inet addr:143.239.184.12 Bcast:143.239.255.255 > Mask:255.255.0.0 > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > Base address:0x3000 Memory:f8200000-f8220000 > > eth1 Link encap:Ethernet HWaddr 00:30:48:29:e9:41 > inet addr:143.239.184.75 Bcast:143.239.255.255 > Mask:255.255.0.0 > inet6 addr: fe80::230:48ff:fe29:e941/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:1738672 errors:0 dropped:0 overruns:0 frame:0 > TX packets:228 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:180938419 (172.5 MiB) TX bytes:20519 (20.0 KiB) > Base address:0x3040 Memory:f8220000-f8240000 > > lo Link encap:Local Loopback > inet addr:127.0.0.1 Mask:255.0.0.0 > inet6 addr: ::1/128 Scope:Host > UP LOOPBACK RUNNING MTU:16436 Metric:1 > RX packets:14810 errors:0 dropped:0 overruns:0 frame:0 > TX packets:14810 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:0 > RX bytes:20030201 (19.1 MiB) TX bytes:20030201 (19.1 MiB) > > > #################### The Problem ################################ > > I have discovered that with net.ipv4.ip_forward = 1 > the apr table starts to grow and grow and I think I get an arp table > overflow. Also I get No buffer space available errors. When I do > net.ipv4.ip_forward = 0 the arp table reduces to a normal size and the > No buffer space available errors stop.
why do you have 3 interface into the same ip network ? I presume there are all attached to the same ethernet broadcast domain ? that shouldn't be causing the problem though. have you done a tcpdump to see what traffic is being forwarded ? The other question is why do you need to forward ? can you do an ip route please > > Any ideas? > > Thanks. > > -- > Gerard Hooton. > Department of Microelectronic Engineering U.C.C. > Butler Building, > Enterprise Centre, > North Mall. > Cork. > > Tel: +353 21 4904576 > Fax: +353 21 4904573 > http://www.ue.ucc.ie/ > > > > > -- > To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org > with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org > > -- "We're concerned about AIDS inside our White House -- make no mistake about it." - George W. Bush 02/07/2001
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