blob: 96009f6c123d9ea705f3308455990955f92a8d44 (plain
1) NAT in the OUTPUT chain only works since kernel 2.4.18. However,
there is a patch for previous kernels in patch-o-matic, called the
'local-nat.patch'. This patch adds a CONFIG_NF_IP_NAT_LOCAL kernel config
2) tcpdump traffic is corrupted by OUTPUT NAT.
3) Connection tracking doesn't wait very long for reply FIN, meaning
that half-closed pipes can time out early (seen frequently with squid).
4) When you use ip6tables packet mangling on IPv6 packets, the packet will
not be re-routed in case e.g. you insert a routing header.