iptables chain rule specifation

[vlrk]

friends,

In one of the script i observerd following line.

$iptables -A inwan_level_input_filter -p icmp -j logInboundPermitted

do these "inwan_level_input_filter" and "logInboundPermitted" can be a group of chain rules or any label .

If it is a group of chain rules , how can it be created.


thanks

[brewbuck]

The group of rules is called a chain, and they can be created with the -N option.