Command Reference Guide

3Com Router 5000 Family and Router 6000 Family pos-server source-ip ● 271
Command Reference
pos-server source-ip
Purpose Use the pos-server source-ip command to bind the specified application with
the source address of a TCP connection.
Use the undo pos-server source-ip command to remove the binding.
Syntax pos-server source-ip app-number ip-address
undo pos-server source-ip app-number
Parameters app-number
Number of an application. Valid values are 0 to 31.
ip-address
Source IP address bound with the specified application
number.
Example Bind application 0 in TCP connection mode with IP address 1.1.1.5.
[Router] pos-server source-ip 0 1.1.1.5
View This command can be used in the following views:
■ System view
Description Packets from multiple POS terminals can be multiplexed into one TCP connection
between the POS access router and the UNIX FEP to reach the mainframe. For security
sake and other concerns, you may hide the true IP address of the TCP connection on
the POS access router, and use another IP address as the source address instead. More
than that, source address binding can provide link backup.
Note that TCP source IP address binding is only applicable to applications based on
TCP connection. In addition, to ensure a successful binding, the involved TCP
connection must have not been initiated yet. Otherwise, the configuration will fail
and the following error message will appear:
App-state is wrong.