netdev - Re: wrong arp query with policy routing

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Date:	Fri, 21 Sep 2007 14:56:55 +0200
From:	"Marco Berizzi" <pupilla@...mail.com>
To:	<hadi@...erus.ca>
Cc:	"Chuck Ebbert" <cebbert@...hat.com>, <netdev@...r.kernel.org>
Subject: Re: wrong arp query with policy routing

jamal wrote:

> On Fri, 2007-21-09 at 11:08 +0200, Marco Berizzi wrote:
>
> > thanks for the reply.
> > I have tried to 'echo 1 > /proc/sys/net/ipv4/conf/eth0',
> > but the 'arp whos-has' behaviour doesn't change.
> > Other hints?
>
> Give a man a fish and he'll eat for a day....
>
> Documentation/networking/ip-sysctl.txt

Thanks for the tip Jamal.
I have done a 'grep -i arp' on that file and
arp_announce should do the trick. But I always
get the same behaviour, after:

echo 2 > /proc/sys/net/ipv4/conf/eth0/arp_announce
echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce

Here is:
14:43:26.096574 00:01:02:ad:db:82 > ff:ff:ff:ff:ff:ff, ethertype ARP
(0x0806),
length 42: arp who-has 1.1.1.254 tell 172.16.1.247

Here is my 'ip a s' output:
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
qlen 1000
    link/ether 00:01:02:ad:db:82 brd ff:ff:ff:ff:ff:ff
    inet 172.16.1.247/23 brd 172.16.1.255 scope global eth0
    inet 1.1.1.1/32 scope global eth0



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