[j-nsp] Restricting OSPF prefixes listen from neighbor

[Antonio Sanchez-Monge]

Hi,

An OSPF filtering option you have in the ABR's is the area-range command
with "restrict" option, which allows you to prevent the generation of
summary LSA (or external LSA if the non-backbone area is NSSA) in a
per-prefix basis at the area border.

Cheers,
Ato 

-----Original Message-----
From: juniper-nsp-bounces at puck.nether.net
[mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Vladimir S.
Blazhkun
Sent: mercredi 6 septembre 2006 10:31
To: FAHAD ALI KHAN
Cc: juniper-nsp at puck.nether.net
Subject: Re: [j-nsp] Restricting OSPF prefixes listen from neighbor


> 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).

-- 
Vladimir S. Blazhkun
JNSS-M JNCIA-M #773 JNCIS-M #1100 JNCIP-M #289 JNCI-M
JNCIA-J JNCI-J
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