[WBEL-users] iptables port 50 and 51

[Michael Brennen]

Those are rules for protocols 50 and 51.  VPN appliances are the
only time I have ever seen those protocols used.  If you won't be
implementing a VPN I suspect you should be able to remove those
without harm.

   -- Michael

On Wed, 28 Jul 2004, Eric Hancock wrote:

> -A RH-Firewall-1-INPUT -p 50 -j ACCEPT
> -A RH-Firewall-1-INPUT -p 51 -j ACCEPT
> Why are these ports open by default and what will I
> lose if I killed those rules?