IPTables - Don't log pings
 

What kind of iptable rule can I implement so that everything is logged besides pings? I want to log all icmp data but not to show ping requests/replies.

As iptables executes rules top down you'd need something like:

iptables -A INPUT -p icmp --icmp-type 8 -j ACCEPT # let ping through
iptables -A INPUT -p icmp -j LOG --log-prefix="IPTables: [ICMP] " # log all other icmps
iptables -A INPUT -p icmp -j accept # accept them now that we logged them

Hope this gets you headed in the right direction.
Freemor