User manual

ADTRAN Routers with CradlePoint CBA750B Configuring the ADTRAN Router

To configure the track for monitoring the PRIMARYPROBE probe, enter the following commands at the

specified command prompts:

(config)#track PRIMARYTRACK

(config-track-PRIMARYTRACK)#test list or

(config-track-PRIMARYTRACK-test)#if probe PRIMARYPROBE

(config-track-PRIMARYTRACK)#no shutdown

Step 3: Configure Policy-based Routing for the Probe

Configure policy-based routing to force the probe to only route out of the primary WAN Ethernet interface.

Without policy-based routing, during failover, the probe will begin sending ICMP echo requests out the

WAN failover interface along with the rest of the traffic, which will transition the probe to a PASS state

and cause the unit to try to route out the failed primary WAN interface.

In the configuration example below, the ip access-list extended command is used to create an extended

IPv4 ACL for the PRIMARYPROBE. The permit command is used to configure the ACL to permit

ICMP packets from any source to the ICMP echo request destination configured in

Step 1: Configure the

Primary WAN Probe on page 10. Next, the route-map <name> permit command is used to create a

route-map. The match ip address command is used to match traffic based on the PROBEACL ACL

(traffic from the probe), and the set interface command is used to send traffic from the probe out the

primary WAN Ethernet interface. Last, the ip local policy route-map command is used to globally assign

the PROBEMAP route map to the ADTRAN router, forcing all traffic generated by the router that

matches the ACL to be routed out the primary WAN interface.

To configure policy-based routing for the probe, enter the following commands at the specified command

prompts:

(config)#ip access-list extended PROBEACL

(config-ext-nacl)#permit ip any host 4.2.2.2

(config)#route-map PROBEMAP permit 10

(config-route-map)#match ip address PRIMARYACL

(config-route-map)#set interface eth 0/1 null 0

(config-route-map)#set ip next-hop 198.51.100.2

(config)#ip local policy route-map PROBEMAP

Step 4: Associate the Track with the Primary WAN Route

Associate the track with the default route for the primary WAN interface so that the route will be removed

when the ICMP probe fails. To associate the track with the default route, use the ip route command from

the Global Configuration mode:

The following example creates a default route to 198.51.100.2 and specifies that the route will be disabled

when the track PRIMARYTRACK fails:

(config)#ip route 0.0.0.0 0.0.0.0 198.51.100.2 track PRIMARYTRACK