I Have problems after compile kernel 2.4.19 with patch-o-matic20020825, option z-newnat16.

After compile and restart my linux box, i try insert basic rule:

iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE and result is:

ARGUMENT INVALID

My iptables is version 1.2.7a and kernel 2.4.19.

Tkz.