Stephen Hemminger wrote:
On Mon, 2 Mar 2009 14:42:33 +0100 (CET)
Jesper Dangaard Brouer <hawk@xxxxxxx> wrote:
On Thu, 26 Feb 2009, Stephen Hemminger wrote:
This is a simple little iptables match that can be used to create the Strong
End System model, that router and other non-Linux customers expect. There
are management and other applications that use ping and expect to only get
a response when the interface with that address is up. Normally, a Linux
system will respond to a packet that arrives for any of the system addresses
independent of which link it arrives on.
Is this no almost the same as:
echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
That doesn't work when system already has an ARP entry and link goes down.
I think it would make sense to define the differences in behaviour
that are expected when acting according to the strict host model.
It very unlikely that all of this can be achieved with iptables,
and if what can be done is still useful, the limitations should be
known.
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