Digi TX54 User Manual page 573

Firewall
1. Log into the TX54 command line as a user with full Admin access rights.
Depending on your device configuration, you may be presented with an Access selection
menu. Type admin to access the Admin CLI.
2. At the command line, type config to enter configuration mode:
> config
(config)>
3. At the config prompt, type:
(config)> add firewall dnat end
(config firewall dnat 0)>
Port forwarding rules are enabled by default. To disable the rule:
(config firewall dnat 0)> enable false
(config firewall dnat 0)>
4. Set the network interface for the rule.
(config firewall dnat 0)> interface eth2
(config firewall dnat 0)>
Network connections will only be forwarded if their destination address matches the IP
address of this network interface.
a. Use the ? to determine available interfaces:
(config firewall dnat 0)> interface ?
Interface: Network connections will only be forwarded if their
destination address matches the IP address of this network interface.
Format:
defaultip
defaultlinklocal
lan1
lan_hotspot
loopback
wan1
wwan1
wwan2
Current value:
(config firewall dnat 0)> interface
b. Set the interface. For example:
(config firewall dnat 0)> interface wan1
(config firewall dnat 0)>
TX54 User Guide
Port forwarding rules
573