Reference Guide

3 Configuration commands Security commands
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security nat interface
Network Address Translation (NAT) provides security by hiding the internal
addresses of the private network from the Internet: addresses and/or ports
are translated from private IP addresses to public IP addresses, and vice
versa.
The BSGX4e processes both standard and reverse NAT:
z Standard NAT translates the source IP address of the LAN to the public
WAN IP address. It also changes the port numbers (for UDP and TCP
protocols) or the ICMP identifier. These translations allow several LAN
devices to be connected to the WAN through a single public IP address.
z Reverse NAT (redirection) forwards traffic from the public network to a
private network. This allows a device in the LAN to be accessed from the
Internet (using address forwarding or port forwarding).
Use this command to configure the NAT interface.
Syntax config security nat interface [eth1|eth0] status [on|off]
Parameter interface eth1|eth0
Select the WAN interface to apply NAT on.
status on|off Enable/disable the interface. The default is
off.
Enable > config security nat interface eth0 status on
Related
commands
del security nat interface
display security nat interface
show security nat interface