I have tried every type of rule to block ICMP Redirct packets, and have failed.

Here is the details of what needs to be blocked:

Type: 5 (Redirect)
Code: 1
Ver: 4
Hdr Len: 5

I need these ICMP packets blocked, with IPCHAINS more importantly with Pmfirewall, a script that uses ipchains.

Any help would be appreciated.

Search IPCHAINS tutorial on google. They always have blocking ICMP packets as an example.