path: root/net/ipv4/fib_semantics.c
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authorHerbert Xu <herbert@gondor.apana.org.au>2005-10-03 14:18:10 -0700
committerDavid S. Miller <davem@davemloft.net>2005-10-03 14:18:10 -0700
commit444fc8fc3a1f926fa224655b8950bd853368c1a3 (patch)
treef6359721fc50ac3802b30d705e2c7c06b983c5f8 /net/ipv4/fib_semantics.c
parent496a22b08fa326bf17c11eb900e0505aa9da3506 (diff)
[IPV4]: Fix "Proxy ARP seems broken"
Meelis Roos <mroos@linux.ee> wrote: > RK> My firewall setup relies on proxyarp working. However, with 2.6.14-rc3, > RK> it appears to be completely broken. The firewall is, > > Same here with some kernel between 14-rc2 and 14-rc3 - no reposnse to > ARP on a proxyarp gateway. Sorry, no exact revison and no more debugging > yet since it'a a production gateway. The breakage is caused by the change to use the CB area for flagging whether a packet has been queued due to proxy_delay. This area gets cleared every time arp_rcv gets called. Unfortunately packets delayed due to proxy_delay also go through arp_rcv when they are reprocessed. In fact, I can't think of a reason why delayed proxy packets should go through netfilter again at all. So the easiest solution is to bypass that and go straight to arp_process. This is essentially what would've happened before netfilter support was added to ARP. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/fib_semantics.c')
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