3Com 10014299 manual Configure POS multi-application mapping table, Default app-number

POS Access Service Configuration 99

POS access does not support flow control, therefore, the interface should be configured with the flow-control none command.

5Configure POS Multi-Application Map

POS multi-application is a kind of POS access function, which sends the packets from a POS terminal device to different POS applications according to the packet destination addresses. For TCP/IP connection, an application is marked by two parts, IP address and port number, that is, the different applications may have different IP addresses or share the same IP address but have different port numbers. The packets can be sent to different applications according to the destination address number. When the destination address number has a corresponding entry in the mapping table, the packet will be sent to the application corresponding to the entry. If there is no entry matching the destination address, the packet will be sent to the default application.

Please perform the following configuration in system view.

Table 76 Configure POS multi-application mapping table

Operation	Command
Configure the POS multi-application mapping table	pos-server map { des-code
	default } app-number
Delete the POS multi-application mapping table	undo pos-server map {
	des-code default }

By default, no POS multi-application mapping table is configured.

At present, the 3Com Router series support up to 32 applications.

6Bind the Source Address of TCP Connection

When several POS terminal devices multiplex one TCP connection to set up relations with the application of the host, for the sake of security, it is necessary to hide the true IP address of the up TCP connection in the access service, and set another IP address for the source address instead. At the same time, to perform the backup of the link, the terminal access server provides the function of binding the source address of the TCP connection.

The principle of binding the source address of the TCP connection is to configure an IP address on the other interface that is not used on the router (Dial-up interface is recommended), the unnumbered IP address is the address of the up TCP connection on the terminal access server. Using the undo pos-serversource-ipcommand, you can remove the binding of TCP source address and the IP address of the TCP connection will be restored to the real IP address of the original physical interface.

Please perform the following configurations in system view.

Table 77 Bind the source address of TCP connection

Operation	Command
Bind the source address of TCP connection	pos-server source-ip app-number
	ip-address
Remove the binding of the source address of	undo pos-server source-ip
the TCP connection	app-number

By default, the source address of the TCP connection is not bound.

Please note that this command can be applied only in the application in the TCP connection, and the application state is that the TCP connection has not been