Chapter 12: AI2524 X.25 Configuration Steps
August 1997 Page 12-41
2524UM
Specify a CMNS Static Map of Addresses
After enabling CMNS on a nonserial interface (or specifying X.25 en-
capsulation on a serial interface), you must map NSAP addresses to ei-
ther MAC-layer addresses or X.121 addresses, depending on th
application.
For CMNS support over dedicated serial links (such as leased lines),
an X.121 address is not needed, but can be included. You must specify
the X.121 address for CMNS connections over a packet-switched net-
work, and you must specify a MAC address for CM N S connections
over a nonserial medium (Ethernet, FDDI , or T o ken Ring).
To map the NSAP addresses to either a MAC address or X.121 ad
dress, perform one of these tasks in interface configuration mode:
zStatically map an NSAP address to a nonserial MAC-layer ad-
dress.
x25 map cmns

nsap mac-address

zStatically map an NSAP address to X.25, with an optional X.121
destination address.
x25 map cmns

nsap x121-address

Example: CMNS Configured for X.121 and MAC Addresses
This example illustrates enabling C MNS and configuring X.121 and
MAC address mappings. Map NSAP to MAC-address on Ethernet0:
interface ethernet 0
cmns enable
x25 map cmns 38.8261.1000.0150.1000.17 00 00.0c00. ff89
Map NSAP to X.121-address on Serial0 assuming the link is over
PDN:
interface serial 0
encapsulation x25
x25 map cmns 38.8261.1000.0150.1000.18 31 10451
Specify cmns support for Serial1 assuming that the link is over
leased line: