Hi, I have a linux router running kernel 3.2 that receive public ingress packets and route them through an GRE tunnel, return packets don't go through it I've recently faced a serious issue with the route cache, when the router received spoofed source , the route cache will quickly get exhausted (depending on the size of it) and soon the ip dst cache overflow will be printed and network subsystem will hang until restarted. So, my question is, how can I turn off the route cache without recompile the kernel or adding the patch for removal in 3.7? I tried to set echo 0 > /proc/sys/net/ipv4/route/max_size but that has no effect at all. And if some one can share some insight on why when dst cache overflows, the network subsystem hangs, it would be great. Thanks. -- To unsubscribe from this list: send the line "unsubscribe lartc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
