Configuring Demand Routing For Backup Connections - HP ProCurve Secure Router 7203 dl Advanced Management And Configuration Manual

Frame Relay
10.1.1.0
over E1
Main Router
To: 10.4.4.23
From: 10.2.2.5
Switch
Primary connection available, so
traffic is routed over Frame Relay
10.2.2.0
connection
Routing Table
C 10.1.1.0/30 is directly connected, fr 1.1
C 10.2.2.0/24 is directly connected, eth 0/1
C 10.10.10.0/30 is directly connected, ppp 1
S 10.4.4.0/24 [1/0] via 0.0.0.0, fr 1.1
Figure 3-5. Persistent Backup Connection
If you want to use demand routing for your backup connections, continue with
the next section. If you want a persistent backup connection, continue with
"Configuring a Persistent Backup Connection" on page 3-47.
Configuring Demand Routing for Backup
Connections
To configure demand routing for backup connections, you must complete the
following steps:
1.
2.
3.
4.
10.4.4.0
Office Router
Primary
connection
fails
Create an extended access control list (ACL) to define the traffic that will
trigger the dial-up connection when the primary interface is unavailable.
Configure a demand interface.
Configure the BRI interface.
Create a floating static route to the far-end network.
Configuring Backup WAN Connections

Configuring Demand Routing for Backup Connections

10.1.1.0
Main Router
Connection
triggered
immediately
Switch Primary connection unavailable,
so traffic is routed over dial-up
10.2.2.0
connection
Routing Table
C 10.2.2.0/24 is directly connected, eth 0/1
C 10.10.10.0/30 is directly connected, ppp 1
S 10.4.4.0/24 [2/0] via 0.0.0.0, ppp 1
10.4.4.0
Office Router
3-17