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area 77 nssa no-redistribution no-summary posted 02/06/2007
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Group,

This command doesn't seem to work!

These are the requirements:

-          area 77 should not receive summary LSA but should be allowed to
have external routes

-          vlan 701 should be redistributed in ospf but no lsa should be
generated in area 77

This translates perfectly in the statement above, but it doesn't work !!

BTW: the no-summary does block all summary lsa, but it introduce a summary
lsa for 0.0.0.0/0 

Any idea?

Thanks,

Luca.

 

s1(config-router)#do show ip ospf database       

 

            OSPF Router with ID (157.73.1.137) (Process ID 1)

..

                Summary Net Link States (Area 77)

 

Link ID         ADV Router      Age         Seq#       Checksum

0.0.0.0         157.73.1.137    448         0x80000001 0x0024A0

 

                Type-5 AS External Link States

 

Link ID         ADV Router      Age         Seq#       Checksum Tag

157.73.1.128    157.73.1.137    448         0x80000009 0x00E067 0

 

s1(config-router)#do show run | begin router ospf

router ospf 1

 router-id 157.73.1.137

 log-adjacency-changes

 area 55 virtual-link 157.73.51.5

 area 77 nssa no-redistribution no-summary

 redistribute connected metric 10 subnets route-map S7-3

 network 157.73.2.7 0.0.0.0 area 55

 network 157.73.4.7 0.0.0.0 area 77

 network 157.73.6.7 0.0.0.0 area 77