F3726, F3211, F3174, R5135, R3816-HP Firewalls and UTM Devices Network Management Configuration Guide-6PW100

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• Configure Router A and Router B as ABRs to forward routing information between areas.

• Configure Area 1 as an NSSA area and configure Firewall as an ASBR to redistribute static routes

into the AS.

Figure 273 Network diagram

1443BConfiguration procedure

1. Configure IP addresses for interfaces. (Details not shown.)

2. Configuring basic OSPF (see "2606HBasic OSPF").

3. Configure Area 1 as an NSSA area:

# Configure Router A.

<RouterA> system-view

[RouterA] ospf

[RouterA-ospf-1] area 1

[RouterA-ospf-1-area-0.0.0.1] nssa

[RouterA-ospf-1-area-0.0.0.1] quit

# Configure Firewall.

<Firewall> system-view

[Firewall] ospf

[Firewall-ospf-1] area 1

[Firewall-ospf-1-area-0.0.0.1] nssa

[Firewall-ospf-1-area-0.0.0.1] quit

[Firewall-ospf-1] quit

NOTE:

• To allow Firewall in the NSSA area to reach other areas within the AS, you must provide the keyword

default-route-advertise for the nssa command issued on Router A (the ABR) so Firewall can obtain a

default route.

• Configuring the nssa command with the keyword no-summary on Router A can reduce the routing

table size on NSSA routers. On other NSSA routers, you only need to configure the nssa command.

# Display routing information on Firewall

[Firewall] display ospf routing

OSPF Process 1 with Router ID 10.4.1.1

Routing Tables