3Com REMOTE ACCESS SYSTEM 1500, Management Manual

Page: 261 / 300

Configuring NAT and PAT
259
Adding Dynamic and Static Address Assignments
Unless you receive incoming connections from the public network,
dynamic PAT does not need configuration beyond enabling a user and
choosing PAT option.
To add a static address assignment, use one of the following commands:
add pat tcp user <username> private_address <ip address>
private_port <number> public_port <number>
or
add pat udp user <username> private_address <ip address>
private_port <number> public_port <number>
Example:
add pat tcp user pat_user private_address 192.168.111.1
private_port 80 public_port 80
Incoming packets from the public network whose destination port
mappings do not exist in the dynamic PAT translation table are directed to
a default host. To specify the default host, use the following command:
set network user <username> pat_default_address <IP address>
Example:
set network user pat_user pat_default_address 192.168.111.2
Viewing PAT Settings and Mappings
To show user settings, which includes its PAT settings, use the following
command:
show user <username>
For example,
show user pat_user
To list active PAT address mappings, use the following command:
list pat user <username> address