Hi again, > Yes that would be correct Marcus echo it into /proc or in /etc/sysctl.conf > would be > # Controls IP packet forwarding > net.ipv4.ip_forward = 1 This is what I have done already. sysctl -p gives me: net.ipv4.ip_forward = 1 net.ipv4.conf.default.rp_filter = 1 net.ipv4.conf.default.accept_source_route = 0 kernel.sysrq = 0 kernel.core_uses_pid = 1 net.ipv4.tcp_syncookies = 1 kernel.msgmnb = 65536 kernel.msgmax = 65536 kernel.shmmax = 4294967295 kernel.shmall = 268435456 The strange thing is that it seems to be blocked by netfilter. I am using exactly the same rules on a Slackware Box without any problems. Best Regards Marcus