From: Tony Olzak (aolzak@xxxxxxxxxxxxxxxxxxx)
Date: Sun Oct 15 2000 - 22:30:44 GMT-3
Title: RE: Area 0 interface in OSPF db as Type 5 LSA??
Newer versions of the IOS (12.0 and up, I think) allow you to use a
wildcard mask with EIGRP. Use those to specify the exact interfaces
you wish to use in the routing process.
Tony
----- Original Message -----
From: Granofsky, Aaron
To: 'ccielab@groupstudy.com'
Sent: Sunday, October 15, 2000 8:17 PM
Subject: RE: Area 0 interface in OSPF db as Type 5 LSA??
The *real* problem is that the network that is on the serial
interface is in
the EIGRP database before I do any redistributing. Making the
interface
passive for EIGRP will stop EIGRP updates from going out that
interface, but
it doesn't stop EIGRP from knowing about that route.
This is even easier to see if you enable rip on a router, place
any of the
interfaces into passive mode, and then show ip rip database.
You'll see all
of the interfaces in the rip database. If you then redistribute
rip into
ospf, the routes will show up as external routes!
My goal was to keep my OSPF internal routes as OSPF internal routes
after
redistributing.
The route-map solution kept the route from being fed back into
OSPF, and
worked for me.
If anyone knows how to keep a routing process from knowing about
the routes
on it's own interfaces, I'd love to hear it.
Regards,
Aaron
-----Original Message-----
From: damien [mailto:damien@clara.co.uk]
Sent: Sunday, October 15, 2000 2:29 PM
To: Granofsky, Aaron; ccielab@groupstudy.com
Cc: Roy Grego
Subject: Re: Area 0 interface in OSPF db as Type 5 LSA??
I am can't remember its so long since I tried it, but I am almost
100% sure
distribute list out does not work regardless of what type of OSPF
Router
they are configured on..........I can try again in the
Lab.......you can not
filter LSA's on interfaces............you can filter the
Redistributed
Routes before they enter the OSPF process using distribute list
out, but you
are filtering a routing process not the LSA.....and thats exactly
what you
have done below.............
so in effect what have done below is prevented the OSPF Area 0 link
from
entering into the OSPF process so it will not appear as a Type 5
LSA.............
if you look at your original config where you have distribute list
in, this
is useless and will have no effect........if you configure
distribute list
out EIGRP and ensure that the list number reference the route you
want to
deny, you should find that it will work.....................
router ospf 1
summary-address 170.10.26.0 255.255.255.0
redistribute eigrp 1 subnets
network 170.10.1.0 0.0.0.255 area 0
network 170.10.2.0 0.0.0.255 area 0
default-metric 64
distribute-list 3 out eigrp
access-list 3 deny 172.16.1.0 0.0.0.255
access-list 3 permit any
Hope this helps
Damien
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