-A RH-Firewall-1-INPUT -p 50 -j ACCEPT
-A RH-Firewall-1-INPUT -p 51 -j ACCEPT
That's _protocol_ 50 and 51; not ports 50 and 51
% grep '5[01]' /etc/protocols
esp 50 ESP # Encap Security Payload
ah 51 AH # Authentication Header
IPSec traffic.
--
rgds
Stephen
