[nsp] OSPF NSSA

[John Pang]

Hi Andrew,

Thanks alot for the explanation and advice!

/me back to exploring in the lab

Best regards,

--- Andrew Fort <afort at choqolat.org> wrote:
> On 11/02/2004 6:23 PM, John Pang wrote:
> 
> >Hi Stephen and Mustafa,
> >
> >Thanks alot for your advice and info.
> >
> >I tried out Mustafa's method of putting R4's
> loopback
> >into Area 1 and R1 is now able to see 2 paths to
> R4.
> >:)
> >
> >Just curious but is putting the loopback into an
> Area
> >a standard procedure? Is this behaviour standard
> for
> >OSPF or is it due to the way Cisco IOSes operate?
> >
> >Previously I used to do redistribute connected to
> >inject the loopback IP address into OSPF. How is
> this
> >different from manually specifying the loopback IP
> >address as a member of the area?
> >
> >Once again, many thanks for the kind advice and
> >assistance.
> >  
> >
> 
> Using the network command causes the router to add
> the loopback address 
> as a 'stub host' network on its router (type-2) LSA 
>  If the NSSA area 
> is the same as the area in which you've placed the
> loopback, the routers 
> in the NSSA will see the route for the loopback
> 
> Using a redistribute statement causes the router to
> produce an 
> AS-External (type-5) LSA, which will be seen
> everywhere throughout the 
> network, except, in the NSSA area.
> 
> -afort
> 


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