Digi TX54 User Manual page 800

Firewall
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)>
5. Set the IP version. Allowed values are ipv4 and ipv6. The default is ipv4.
(config firewall dnat 0)> ip_version ipv6
(config firewall dnat 0)>
6. Set the public-facing port number that network connections must use for their traffic to be
forwarded.
(config firewall dnat 0)> port port
(config firewall dnat 0)>
7. Set the type of internet protocol .
(config firewall dnat 0)> protocol value
(config firewall dnat 0)>
Network connections will only be forwarded if they match the selected protocol. Allowed
values are custom, tcp, tcpudp, or upd. The default is tcp.
TX54 User Guide
Port forwarding rules
800