params — Shorewall6 parameters file
/etc/shorewall6/params
Assign any shell variables that you need in this file.
It is suggested that variable names begin with an upper case letter to distinguish them from variables used internally within the Shorewall programs
Example params file:
NET_IF=eth0 NET_OPTIONS=dhcp,nosmurfs
Example shorewall6-interfaces(5) file.
ZONE INTERFACE BROADCAST OPTIONS net $NET_IF - $NET_OPTIONS
This is the same as if the interfaces file had contained:
ZONE INTERFACE BROADCAST OPTIONS net eth0 - dhcp,nosmurfs
http://www.shorewall.net/configuration_file_basics.htm#Variables
shorewall6(8), shorewall6-accounting(5), shorewall6-actions(5), shorewall6-blacklist(5), shorewall6-hosts(5), shorewall6-interfaces(5), shorewall6-maclist(5), shorewall6-policy(5), shorewall6-providers(5), shorewall6-route_rules(5), shorewall6-routestopped(5), shorewall6-rules(5), shorewall6.conf(5), shorewall6-tcclasses(5), shorewall6-tcdevices(5), shorewall6-tcrules(5), shorewall6-tos(5), shorewall6-tunnels(5), shorewall6-zones(5)