Permanent Static Route; Discard Route; Routing Table Commands - Avaya G250 Administration

Configuring the router
Note:
You cannot define a static route through the Fast Ethernet interface unless the
Note:
interface was previously configured to use PPPoE encapsulation or was
configured as a DHCP Client. See
Configuring DHCP client

Permanent static route

The Avaya G250/G350 Media Gateway enables you to configure a static route as a permanent
route. Configuring this option prevents the static route from becoming inactive when the
underlying Layer 2 interface is down. This prevents routing table updates from being sent each
time an interface goes up or down when there is a fluctuating Layer 2 interface on the static
route. Configure the permanent option using the ip route command.
For example, the command ip route 193.168.10.0 24 serial 2/1:1 permanent
creates a permanent static route to the network 193.168.10.0 24 via the Serial 2/1:1 interface.
Permanent static routes should not be configured over Serial Layer 2 interfaces that participate
in a Primary-Backup pair. For more information on Backup interfaces, see
page 146.

Discard route

Discard route enables you to prevent forwarding traffic to specific networks. You can configure a
static route that drops all packets destined to the route. This is called a discard route, indicated
by the null0 parameter, and is configured using the ip route <network> <mask> null0
command.
For example, the command ip route 134.66.0.0 16 Null0 configures the network
134.66.0.0 16 as a discard route.

Routing table commands

Use the following commands to configure the routing table. For more information about these
commands, see Avaya G250 and Avaya G350 CLI Reference, 03-300437.
Use the clear ip route all command to delete all dynamic routing entries from the
●
routing table.
Use the ip default-gateway command to define a default gateway for the router. Use
●
the no form of this command to remove the default gateway.
Use the ip route command to establish a static route. Use the no form of this command
●
to remove a static route.
320 Administration for the Avaya G250 and Avaya G350 Media Gateways
Configuring PPPoE
on page 95.
on page 139 and
Backup interfaces on