Configuring X.25
Always On/Dynamic ISDN (AO/DI)
MAX 6000/3000 Network Configuration Guide 6-39
10 From the Connection profile main menu, open the Interface options submenu.
11 Set X.25 Prof to the name of the X.25 profile that the MAX uses for the connection.
12 Specify additional parameters for the X.25 connection as directed by the carrier.
If you set Call Mode to Incoming or Both, proceed as follows:
1From the Connection profile menu, open the Interface options submenu.
2Set Answer X.121 addr to the value specified in the X.121 src addr parameter of the X.25
profile on the MAX.
Note: You can substitute the beginning portion of the address with the wildcard * which
indicates that the MAX should accept any value, requiring a match only on the trailing
digits that you specify after the wildcard character.
If you set Call Mode to Outgoing or Both, proceed as follows:
1From the Connection profile menu, open the Interface options submenu.
2Set Remote X.121 addr to the value specified in the X.121 source address of the remote
X.25 host to which the profile connects. You should not leave Remote X.121 addr blank if
you set Call Mode to Both or Outgoing. Also, for incoming calls, the MAX attempts to
match the called number of the incoming call to Remote X.121 address (if specified) and
the calling number of the incoming call to Answer X.121 address (if specified).
Note: You can substitute the beginning portion of the address with the wildcard * which
indicates that the MAX should accept any value, requiring a match only on the trailing
digits that you specify after the wildcard character. For outgoing calls, the MAX dials only
the trailing digits specified, ignoring the beginning wildcard character.
Exit and save the Connection profile. If you set Call Mode to Outgoing, the MAX sends a call
request to the number specified in the Remote X.121 addr parameter when you enable the
Connection profile. If you set Call Mode to either Both, the X.25 connection stays idle until the
MAX receives a packet to be forwarded across the X.25 link.
Similar to switched connections, the MAX supports dynamic IP address assignment for AO/DI
connections.
When you set Call Mode to Outgoing and the session and profile are active, the Connection
profile displays an asterisk to the left of the profile name on the Ethernet > Connections
submenu which indicates that a call is up or is available for a call.
Note: When you modify a AO/DI-related X.25 profile or Connection profile, you must
disable the AO/DI-related profile and re-enable it.
Displaying AO/DI operation
To make sure AO/DI is installed and configured properly, you can display one status window
to indicate whether or not the MAX supports AO/DI, another to observe active AO/DI calls,
and a third to indicate how many packets the MAX processes for a particular AO/DI session.

Displaying whether or not the MAX supports AO/DI

The System > Sys Options window provides a read-only list that identifies the MAX and
names each of the features (including AO/DI) which it has been equipped. Press the tab key to