[j-nsp] Restricting OSPF prefixes listen from neighbor

[Scott Morris]

Cisco has "distribute-list in" which will actually filter between the OSPF
RIB and the routing-table (thus not violating OSPF rules).

I believe you could use a FIB filter in JunOS to accomplish the same thing.
Essentially the Cisco view is setting distance to 255 and thus not liking
it.

Scott
swm at emanon.com
 

-----Original Message-----
From: juniper-nsp-bounces at puck.nether.net
[mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Jonathan Looney
Sent: Wednesday, September 06, 2006 9:58 AM
To: Vladimir S. Blazhkun
Cc: juniper-nsp at puck.nether.net
Subject: Re: [j-nsp] Restricting OSPF prefixes listen from neighbor

On 9/6/06, Vladimir S. Blazhkun <v.blazhkun at pcs-net.net> wrote:
>
> > Dear All
> >
> > I have a scenario, where i have created a OSPF neighborship with my
client.
> > Client is advertising me all of its routes, but i have to restric 
> > this advertisement at my input interface end.
> > Juniper ospf import policy doesnot work.  Is there any way to 
> > restrict it as CISCO has distribute-list option to filter out the listen
prefix lists.
>
> import policy for OSPF works only for external (calculated from 
> Type-5/7
> LSAs) routes. But it doesn't filter any LSAs, because it will break 
> consistency of link-state databases.
>
> There is no way to restrict routes from OSPF neighbors in JUNOS 
> (except external routing information).

Incidentally, I think Cisco has the same restrictions on filtering OSPF
routes for the same reasons.

-Jon
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