confused matter

[alsayed]

HOW TO Configure OSPF area 10 on ROUTER-A to only advertise an OSPF default route/intra./inter into Vlan_sales

and how to Configure OSPF area 15 on ROUTER-B to originate intra/default/ routes.

also how to Configure OSPF area 15 on ROUTER-B to do not advertise External routes.

is this works?

ROUTER-A

area 10 stub

Router-b

area 15 nssa no-summary

or

ROUTER-A

are 10 stub no-summary

ROUTER-B

area 15 nssa

thanks a lot

[JamesLuther]

Hi,

The command "area 10 stub no-summary" will make area 5 a totally stubby area and inject a single type 3 default route in to the area.

Making an area nssa will mean that if you originate a default roue in that area it will be advertised as a type 7 within the area and converted to a type 5 when advertised into the backbone.

This is done using "area 15 nssa default-information-originate".

If you want area 15 to not advertise external routes then this is just a stub area? So just configure it as "area 15 stub" Or please explain in more detail.

Regards

[royalblues]

Ali,

I am not sure i quite understand your question

router A

Area 10 stub ...This command configures the router as a part of stub area which will not allow type 5 LSA's (external LSA's) into it. All routers need to configured for stub including the interface on the ABR connecting to this area

Router A

area 10 stub no-summary.. This configures area 10 to be totally stubby area and blocks external type 5 LSAs as well as summary type 3 and type 4 LSAs from entering the area. It is configured only on the ABR. The other routers in the area are configured with just the area 10 stub command.

ROUTER-B

area 15 nssa

The above configuration is an extension of the existing stub area feature that allows the injection of external routes in a limited fashion into the stub area.

HTH

Narayan