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Cisco MWR 1900 Mobile Wireless Edge Router Software Configuration Guide
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Chapter4 Configuring with the Command-Line Interface
Before You Begin
Before You Begin
Before you configure the MWR 1900, there are a few caveats of which you should be aware:
•You cannot disable Cisco Express Forwarding (CEF) on the MWR 1900. Commands such as
no ip cef will display an error message “%Cannot disable CEF on this platform.” Some commands,
such as no ip route-cache cef, will not return an error message. However, CEF will not be disabled
regardless of whether an error message is displayed.
•If you are using the MWR 1900 in a redundant configuration and are a ttaching the MWR 1900 to a
device that uses spanning tree, configure portfast on the device to avoid problems with HSRP at start
up.
•If you are using the MWR 1900 in a redundant configuration, disable Extended Availability Drop
and Insert (EADI) capabilities on the router (using the disable-eadi global configuration command)
to avoid a double-termination scenario upon reboot. If the MWR 1900 is not being used in a
redundant configuration, and EADI is specifically requ ired, re-enable EADI using the
no disable-eadi global configuration command.
•In case of a tie in priority, HSRP uses the IP address to determine the active router. Therefore, you
should ensure that the order of the IP addresses of the E1/T1 interfaces of the active router
corresponds to the order of the IP addresses of the E1/T1 interfaces of the standby router.
Verifying the Version of Cisco IOS Software
The MWR 1900 requires Cisco IOS Release 12.2(8)M C2 or a later Cisco IOS Release 12.2 MC be
installed. To verify the version of Cisco IOS software, use the show version command.
The show version command displays the configuration of the system hardware, the software version, the
names and sources of configuration files, and the boot i mages.
Configuring the Host Name and Password
One of the first configuration tasks you might want to do is configure the host name and se t an encrypted
password. Configuring a host name allows you to distinguish multiple Cisco routers from each other.
Setting an encrypted password allows you to prevent unauthorized configuration changes.
Step 1 Enter enable mode and enter the password.
You have entered enable mode when the prompt changes to Router#.
Router> enable
Password: <password>
Step 2 Enter global configuration mode.
Router# configure terminal
The prompt changes to Router(config)#.