Services can not be started when MAC validation is enabled

[mrmarkuz (Markus Neuberger)]

Does the server have two network interfaces (act as gateway) ?

Enabling IP/MAC binding gives error

The feature is intended to work on a firewall with 2 network interfaces (green + red). Honestly I never tested it on in single-nic scenario and probably it can’t work with current templates. Actually, the maclist options is set only on green interface: You could try to manually edit the /etc/shorewall/interfaces, add maclist at the end of line: net enp0s25 dhcp,nosmurfs,optional Then, try to restart shorewall: shorewall restart Maybe it could work, but without a template-custom modi…