Avaya G250 Administration page 566

Configuring policy-based routing
The next set of commands defines a new PBR list (802). This list will be applied to the data
interface (VLAN 5). The purpose of this is to route data traffic through interfaces other than the
E1/T1 interface, so that this traffic will not interface with voice traffic.
G350-001(super)# ip pbr-list 802
G350-001(super-PBR 802)# name "Data_To_HQ"
Done!
G350-001(super-PBR 802)# ip-rule 1
G350-001(super-PBR 802/ip rule 1)# next-hop list 2
Done!
G350-001(super-PBR 802/ip rule 1)# ip-protocol tcp
Done!
G350-001(super-PBR 802/ip rule 1)# destination-ip host 149.49.43.189
Done!
G350-001(super-PBR 802/ip rule 1)# exit
G350-001(super-PBR 802)# exit
The next set of commands creates next hop list 2. This next hop list routes traffic to the GRE
tunnel (Tunnel 1). If the GRE tunnel is not available, then the next hop list checks the next entry
on the list and routes the traffic to the E1/T1 interface (Serial 4/1). If neither interface is
available, the traffic is dropped. This allows data traffic to use the E1/T1 interface, but only when
the GRE tunnel is not available. Alternatively, the list can be configured without the E1/T1
interface, preventing data traffic from using the E1/T1 interface at all.
G350-001(super)# ip next-hop-list 2
G350-001(super-next hop list 2)#name "Data-To_HQ"
Done!
G350-001(super-next hop list 2)#next-hop-interface 1 Tunnel 1
Done!
G350-001(super-next hop list 2)#next-hop-interface 2 Serial 4/1
Done!
G350-001(super-next hop list 2)#next-hop-interface 3 Null0
Done!
G350-001(super-next hop list 2)#exit
G350-001(super)#
Finally, the next set of commands applies the PBR list to the data VLAN (5).
G350-001(super)# interface Vlan 5
G350-001(super-if:Vlan 6)# ip pbr-group 802
Done!
G350-001(super-if:Vlan 6)# exit
G350-001(super)#
In this example you can add a track on GRE Tunnel 1 in order to detect whether this next hop is
valid or not (for more information on object tracking, refer to
that the GRE tunnel itself has keepalive and can detect the status of the interface and therefore
modify the next hop status.
566 Administration for the Avaya G250 and Avaya G350 Media Gateways
Object tracking on page 256). Note