Troubleshooting An Internal Router - HP ProCurve Secure Router 7203 dl Advanced Management And Configuration Manual

IP Routing—Configuring RIP, OSPF, BGP, and PBR
Troubleshooting Routing
13-156
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OSPF database:
• complete (no keyword)
• external LSAs
• router LSAs
• network LSAs
• summary LSAs
summary of the OSPF database
particular entry in an OSPF database:
• external LSA
• router LSA
• network LSA
• summary LSA
OSPF database from a specific router:
• complete (no keyword)
• external LSAs
• router LSAs
• network LSAs
• summary LSAs
If your network runs OSPF routing over a VPN, you must configure a GRE
tunnel to encapsulate routing updates. The Internet cannot support unencap-
sulated multicast traffic. See Chapter 9: Configuring a Tunnel with Generic
Routing Encapsulation to learn how to configure such a tunnel.

Troubleshooting an Internal Router

Common problems include a router being unable to route traffic or sending
incorrect routes to its neighbors. Follow the troubleshooting tips for your
problem.
The Router Is Unable to Route Traffic. In a stub area, an internal router
should be able to route intra-area traffic on its own. It should also be able to
route inter-area traffic to an ABR (which then routes it to its final destination)
with a default route, with inter-area routes, or with both. If the private network
connects to an external network, the router should be able to route it with the
default route.
Command Syntax
show ip ospf database [external | router |
network | summary]
show ip ospf database database-summary
show ip ospf database [external | router |
network | summary] <LSA ID>
show ip ospf database [external | router |
network | summary] adv-router <A.B.C.D>
<LSA ID>