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X.25 PAD Remote Access Service 69
Therefore X.25 PAD devices actually serve as a procedure translator or network
server, providing services to different terminals and helping them to access the
X.25 network.
The 3Com Router implements X.29 and X.3 protocol in the X.25 PAD as well as in
the X.29 protocol-based Telnet application and the users can configure routers
without geographical limitation, as shown in the figure below. When the user, for
the sake of security, is unable to use IP protocol-based Telnet to configure routers,
they can access a remote router through X.25 PAD for the configuration.
Figure 33 Access remote router through an X.25 PAD
Configure X.25 PAD The X.25 PAD configuration includes:
■ Configure X.25 PAD remote users
■ Enable AAA authentication of X.25 PAD remote users
■ Place the X.25 PAD call and access the remote terminal
■ Set the response time for the Invite Clear message
Configure X.25 PAD remote user
Since remote PAD users can place an X.25 PAD call through the X.25 network,
access the local router, and configure the router, it may be necessary to
authenticate the validity of remote users. You can configure X.25 remote users
with access permission on the router for the purpose of authentication on
receiving the remote PAD request.
This command is not necessary, but if required, it must be used together with the
login pad command.
The called end (also called the configured end) is defined as the Server side, and
the calling end (also called the configuration end) is defined as the Client side.
Please implement the following configuration under the system view at the Server
side.
Table 51 Configure X.25 PAD remote user
Router B
Router A
Serial 0
X.25 Network
Operation Command
Configure X.25 PAD remote user local-user user-name
service-type type [ password {
simple | cipher } password ]
Cancel the completed configuration of X.25
PAD remote user
undo local-user user-name