From: Earl Aboytes (earl@xxxxxxxxxxxx)
Date: Sun Sep 10 2000 - 12:28:12 GMT-3
My understanding is that all routers in a single area must have the same
database. It makes sense that you cannot filter within an area but you
should be able to filter at the ABR to prevent a route from existing in an
area.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Earl Aboytes CCIE #6097
Senior Technical Consultant
GTE Managed Solutions
805-381-8817
earl.aboytes@verizon.com
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Kenneth Kriel
Sent: Sunday, September 10, 2000 5:59 AM
To: 'Ccielab; Alejandro Cadarso
Subject: RE: OSPF Filtering
Hi all,
Thank you for your replies, I am sorry I could not attend to it earlier
cause I was out of the country.
As many have said, distribute lists do not work if it is in the same OSPF
AS. This I found out the hard way, by trying distribute lists incoming and
outgoing on both routers. The route still appears in my OSPF area 0.
I would like to assume the following, however, I need confirmation:
Distrubute lists do not work within OSPF, due to the link state issue !
If you believe differently, and you can prove it please send me your config.
Mine is as follows : (on R2 as per the diagram at the botom !
Thank you for your assistance !!!
Ken
!
interface Loopback0
ip address 132.1.1.1 255.255.255.255
interface Serial0
ip address 135.1.2.1 255.255.255.224
encapsulation frame-relay
ip ospf network point-to-multipoint
no ip mroute-cache
bandwidth 64
no fair-queue
clockrate 64000
frame-relay map ip 132.1.2.3 104 broadcast
frame-relay map ip 132.1.2.4 104 broadcast
router ospf 1
network 135.1.1.1 0.0.0.0 area 1
network 135.1.2.1 0.0.0.0 area 0
distribute-list 17 in Serial0
access-list 17 deny 192.2.2.0 0.0.0.255
access-list 17 permit any
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Alejandro Cadarso
Sent: Friday, September 08, 2000 6:30 PM
To: mark salmon; ccielab
Subject: Re: OSPF Filtering
For me the distibute-list in works Ok
2503-mad#sh ip ospf dat
OSPF Router with ID (190.19.15.225) (Process ID 200)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
190.19.15.193 190.19.15.193 804 0x80000006 0x960E 3
190.19.15.225 190.19.15.225 838 0x800000F5 0x9BE6 2
210.10.10.9 210.10.10.9 7 (DNA) 0x800000EB 0x1FAA 1
Summary Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
190.1.0.0 210.10.10.9 246 (DNA) 0x80000094 0x95D
190.19.15.224 190.19.15.225 766 0x80000095 0xB27
192.19.18.0 210.10.10.9 246 (DNA) 0x80000093 0x47FA
210.10.10.8 190.19.15.193 804 0x80000002 0xACF6
210.10.10.8 210.10.10.9 11 (DNA) 0x8000009D 0x803A
2503-mad#sh ip ro 190.1.0.0
% Network not in table
Perhaps some misconfigured command or IOS bug.
mark salmon wrote:
>
> II have used the dstributed in with OSPF in the past. At first, the
> route was gone from the routing table. After about 1 minute, the route
> was back.
>
> Geatti wrote:
> >
> > Remember, OSPF sends LSAs not ROUTES so a distribute-list out on an
> > interface is useless.
> > You can use a distribute-list in and this should work for blocking the
route
> > from the local router.
> > If this doesn't work for you post your config.
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> > Kenneth Kriel
> > Sent: Friday, September 08, 2000 9:42 AM
> > To: 'Ccielab
> > Subject: OSPF Filtering
> >
> > Gentleman,
> >
> > How do I filter a route from coming into OSFP ? I know it might be a
stupid
> > question but I can not get it to work !
> >
> > Layout
> >
> > OSPF Area 1 Area 0
> > 192.2.2.0/24----|
> > |--R1-----R2
> > 135.1.x.0/24----|
> >
> > I do not want to see 192.2.2.0/24 on router R2 !
> >
> > I tried distribute-list out on R1 and in on R2 but no luck !
> >
> > Thank you in advance !
> >
> > Ken
> >
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