On Tue, 25 Mar 2008, Whit Blauvelt wrote: > > If you have got ethernet devices with MTU smaller than 1500, those won't > > support IPv6 and therefore don't show up in /proc/sys/net/ipv6/conf. > > Interesting. But there is no difference between the MTU settings of eth2, > eth3, eth4 and eth5 - in fact all four ports are on the same physical card. > All the eth? devices are running at default of 1500. I've checked. OK. That was a possibility which could have explained the difference in the interfaces. > > Please check which modules are loaded in. Probably IPv4 NAT related > > modules are not auto-loaded. Also, is there any error message when you > > issue 'iptables -t nat ...' commands? > > Josef, the set of iptables modules is precisely the same whether or not ipv6 > is enabled on the system (yes, I've looked). But which netfilter modules are loaded in? Again, there can be some auto-loading problem which we cannot figure out without the list of the modules. And as Patrick suggested: do you see the connections in /proc/net/nf_conntrack? Or you have got /proc/net/ip_conntrack instead? Best regards, Jozsef - E-mail : kadlec@xxxxxxxxxxxxxxxxx, kadlec@xxxxxxxxxxxxxxx PGP key : http://www.kfki.hu/~kadlec/pgp_public_key.txt Address : KFKI Research Institute for Particle and Nuclear Physics H-1525 Budapest 114, POB. 49, Hungary -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
