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Configuring an ospf nssa area at the cli, Network requirements, Configuration procedure – H3C Technologies H3C SecPath F1000-E User Manual

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[RouterA-ospf-1] area 1

[RouterA-ospf-1-area-0.0.0.1] stub no-summary

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

# Display OSPF routing information on SecPath A.

[SecPathA] display ospf routing

OSPF Process 1 with Router ID 10.4.1.1

Routing Tables

Routing for Network

Destination Cost Type NextHop AdvRouter Area

0.0.0.0/0 4 Inter 10.2.1.1 10.2.1.1 0.0.0.1

10.2.1.0/24 3 Transit 10.2.1.2 10.4.1.1 0.0.0.1

10.4.1.0/24 3 Stub 10.4.1.1 10.4.1.1 0.0.0.1

Total Nets: 3

Intra Area: 2 Inter Area: 1 ASE: 0 NSSA: 0

NOTE:

After this configuration, route entries on the stub router are further reduced, containing only the default
external route.

Configuring an OSPF NSSA area at the CLI

Network requirements

Figure 271

shows an AS is split into three areas, where all routers run OSPF. Router A and Router B act

as ABRs to forward routing information between areas.
Configure Area 1 as an NSSA area, and configure SecPath as an ASBR to redistribute static routes into

the AS.

Figure 271 Network diagram

Configuration procedure

1.

Configure IP addresses for interfaces. (Details not shown)

2.

Configuring OSPF basic functions (see "

Configuring OSPF basic functions at the CLI

").