Specifications

7-25
Cisco 1700 Series Router Software Configuration Guide
78-5407-03
Chapter 7 Configuring Frame Relay
ISDN as the Backup WAN Connection
Verifying Your Configuration
You can verify your configuration by confirming connectivity to the central-site
router, as follows:
Step 1 From the privileged EXEC command mode, enter the ping command, followed by
the IP address of the central-site route to have the router dial the remote router.
You should see command output similar to the following:
Router# ping 192.168.37.40
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.37.40, timeout is 2 seconds:
.!!!!
Success rate is 80 percent (4/5), round-trip min/avg/max = 40/43/48 ms
Router#
*Mar 1 03:37:46.526: %LINK-3-UPDOWN: Interface BRI0:1, changed state
to up
*Mar 1 03:37:46.923: %LINEPROTO-5-UPDOWN: Line protocol on Interface
BRI0:1, changed state to up
*Mar 1 03:37:46.939: %LINK-3-UPDOWN: Interface Virtual-Access1,
changed state to up
Step7
dialer string 5552053 Specify the telephone number that this
interface dials to connect to the central-site
router.
This command is used when the interface is
connecting to only a single remote site.
Step8
dialer-group 1 Assign this interface to a dialer group.
Step9
ppp authentication chap pap Enable CHAP and PAP authentication on this
interface. CHAP authentication is attempted
first. If the central-site router does not support
CHAP, then PAP is used for authentication.
Step10
ppp multilink Enable multilink PPP on this interface.
Step11
no shutdown Enable the interface and the configuration
changes that you have just made on the
interface.
Step12
exit Exit configuration mode for this interface.
Command Task