Re: ARP routing issue

From: Jan De Luyck
Date: Thu Jan 06 2005 - 13:09:16 EST


On Thursday 06 January 2005 18:53, Paul Rolland wrote:
> Hello,
>
> Have a look at /proc/sys/net/conf/XXX/arp_filter :
>
>
> arp_filter - BOOLEAN
> 1 - Allows you to have multiple network interfaces on the same
> subnet, and have the ARPs for each interface be answered
> based on whether or not the kernel would route a packet from
> the ARP'd IP out that interface (therefore you must use source
> based routing for this to work). In other words it allows control
> of which cards (usually 1) will respond to an arp request.
>
> 0 - (default) The kernel can respond to arp requests with addresses
> from other interfaces. This may seem wrong but it usually makes
> sense, because it increases the chance of successful communication.
> IP addresses are owned by the complete host on Linux, not by
> particular interfaces. Only for more complex setups like load-
> balancing, does this behaviour cause problems.
>
> Regards,
> Paul

I tried that actually, didn't change a thing.

Jan

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