Specifications

C-7
Cisco MGX 8850 (PXM45) and MGX 8950 Software Configuration Guide
Release 3, Part Number 78-14788-01 Rev. C0, January 2004
Appendix C Supporting and Using Additional CLI Access Options
Setting Up ATM WAN Connections
To configure the switch to support IP connectivity to the ATM interface, use the following procedure.
Step 1 Establish a CLI management session using a username with SUPER_GP privileges. The default user
name and password for this level are superuser, <superuser>.
Step 2 Verify that the IP address for the ATM interface is not already configured by entering the following
command:
mgx8850a.7.PXM.a> dspipif atm0
Note If you omit the atm0 option, the switch displays the configuration for all switch IP interfaces:
the ATM interface (atm0), the PXM45 LAN port interface (lnPci0), and the PXM45 maintenance
port interface (sl0). Note that the address for each interface must be unique.
In the IP Interface Configuration Table, look for an Internet address entry under the atm entry. If an IP
address is configured, you can use that address. However, if the address has not been entered or is
incompatible with your network, you must configure a valid IP address as described in the next step.
Step 3 To set the switch IP address for the ATM interface, enter the ipifconfig command using the following
format:
mgx8850a.7.PXM.a> ipifconfig atm0 <IP_Addr> <netmask Mask>
Replace <IP_Addr> with the IP address you want this port to use, and replace <Mask> with the network
mask used on this network.
Note Use a subnet mask that is different from the network mask used for LAN port communications.
If you use the same subnet for both ATM and LAN port communications, there will be two
entries for the same subnet in the routing table and all egress IP communications will take place
through the atm0 port.
Tip Cisco recommends that you use the same subnet for all atm0 IP addresses defined on all Cisco
MGX 8850 and Cisco MGX 8950 switches. This practice simplifies router configuration.
Note There are other options for the ipifconfig command, and you can set one or more options
simultaneously. Any options you do not define in a command remain unchanged. For more
information on this command, refer to Cisco MGX 8850, MGX 8950, and MGX 8830 Command
Reference (PXM45/B).
Step 4 To verify the IP address you configured, enter the following command:
mgx8850a.7.PXM.a> dspipif atm0
Step 5 Make a note of the IP address defined for the atm0 interface. This is the IP address switch administrators
must use to manage the switch.
Tip You can view the IP routing table for the switch by entering the routeShow command. To manage
routes in the routing table, you can use the following commands: routeAdd, routeDelete,
routeNetAdd, and routestatShow.