Distributing An Internet Default Route To Ospf Using As-External-Lsa Type 2; Figure 11: Distributing Default Route To Ospf - Avaya 8600 Engineering

9.2 Distributing an Internet Default Route to OSPF
using AS-external-LSA Type 2
The following is an example on how to configure an OSPF ASBR to distribute a default route for Internet
traffic.
Step 1 Configure OSPF Interface
config ethernet 2/1 ip create 10.1.1.1/30
2134
config ethernet 2/1 ip ospf enable
Step 2 Configure a Circuitless IP address
config ip circuitless-ip-int
1.1.1.1/32
config ip circuitless-ip-int
enable
Step 3 Enable OSPF
config ip ospf as-boundary-router enable
config ip ospf router-id 1.1.1.1
config ip ospf enable
Step 4 Configure the BGP Interface
config ethernet 1/2 ip create
131.168.1.2/30 2065
config ip bgp local-as 65500
config ip bgp enable
config ip bgp neighbor 131.168.1.1 create
config ip bgp neighbor 131.168.1.1 remote-
as 65503
config ip bgp neighbor 131.168.1.1 admin-
state enable
November 2010

Figure 11: Distributing Default Route to OSPF

1 create
1 ospf
ERS 8600 / 8800 OSPF Technical Configuration Guide
These two command configure port 1/31 as a brouter
port and enables OSPF on this interface
This step creates a circuitless IP address which will be
used for both the OSPF Router-ID and BGP identifier.
These commands configure the PP8600 as an ASBR
and assigns the Circuitless IP created in Step 2 as the
OSPF Router-ID
avaya.com
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