Soininen Jonne (Nokia-NET/Helsinki) wrote: > Al, why are you worried that the echo reply goes out from a > different interface? It might be easier to understand what you want > if we would understand the problem. The problem is that the kernel is routing according to a fixed view of allowed subnets, ie: overlapping subnets are not treated distinctly. It should be possible for the kernel to detect an IP subnet-collision on packet pickup, something like: eth0 is listening on 10.0.0.0/8 eth0 picks up 10.0.1.2 on 10.0.0.0/8 kernel checks the route table kernel discovers collision with 10.0.1.0/24 on eth1 kernel adds 10.0.1.2/32 route on eth0 to ensure correct routing for return packets This behaviour should be the default and be transparent. This is the idea, although it will eventually overflow the route table. -- Al - : send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
