Jan Engelhardt wrote:
On Thursday 2010-06-17 09:55, Patrick McHardy wrote:
PREROUTING performs DNAT. The purpose is to map the two
identical networks to non-clashing networks. Just consider two
connections from the same source address and port number
to the same destination.
If veth0 has 10.0.0.0/24 and veth1 has 10.0.0.0/24,
wouldn't Linux's ARP mechanism already be confused, in
that it only sends ARP to the first network matching
the subnet?
This patch is intended to be used *without* looping packets through
veth. But good point, I chose that example to simplify things, the
use case I'm interested in is actually tunnels. Apparently it wasn't
the best possible example :)
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