Re: ip ospf database-filter all out

Hi Tharak,

I think the problem you are facing is because of the LSAs already
existing in the ospf database . In your case R4 had already received
the LSAs and when you put the command on the interface any further
LSAs towards R4 will not be advertised. To test this do a "debug ip
ospf flood" and "debug ip ospf lsa-gen" on R3 and while the command is
on the interface advertise a new loopback network . You should find
that the LSA is not flooded out the interface you have this command on
and R4 should not have the new network in its RIB.

HTH,
Ravi

On Sun, Apr 19, 2009 at 11:20 PM, Tharak Abraham
<tharakabraham_at_gmail.com> wrote:
> Hi,
>
> i really dont think the filter command is tied with any network type in ospf
> once its formed adjacency !
>
> Nevertheless, i got it working on all network types after some time, but
> still no idea why it didnt work at first (and for you too..-:))
>
> Tharak
>
> On Sun, Apr 19, 2009 at 4:57 PM, Divin Mathew John <divinjohn_at_gmail.com>wrote:
>
>> interface Serial0/0
>> no ip address
>> encapsulation frame-relay
>> no frame-relay inverse-arp
>> !
>> interface Serial0/0.1 point-to-point
>> ip address 192.168.1.1 255.255.255.0
>> ip ospf network broadcast
>> frame-relay interface-dlci 102
>>
>> at R2 there's no LSAs.!
>>
>> the command filters at both interafce level and subint levle.
>> Thanking You
>>
>> Yours Sincerely
>>
>> Divin Mathew John
>> divinjohn_at_gmail.com
>> divin_at_dide3d.com
>> http://www.dide3d.com
>> +91 9945430983
>> +91 9846697191
>> +974 5008916
>> PGP PUBLIC KEY BLOCK @ http://www.dide3d.com/divin_Public_PGP_key.txt
>> Sent from Bangalore, KA, India
>>
>>
>> On Sun, Apr 19, 2009 at 2:30 AM, Tharak Abraham <tharakabraham_at_gmail.com>
>> wrote:
>> > Hi,
>> >
>> > The command "ip ospf database-filter all out" is supposed to filter all
>> > LSA's out to an area one way !
>> > But results seems to be different...?
>> >
>> > R3 is connected to R4 via FR pt2pt subif and the command is applied,
>> > The routing table shows IA from different area as well as others too
>> > (omitted)
>> > In short the command didnt make any difference in the RIB.
>> >
>> > If anyone could help?
>> >
>> > Rack1R3#sh run int s1/0.4
>> > Building configuration...
>> > Current configuration : 217 bytes
>> > !
>> > interface Serial1/0.4 point-to-point
>> > ip address 180.1.34.3 255.255.255.0
>> > ip ospf hello-interval 15
>> > ip ospf database-filter all out
>> > frame-relay interface-dlci 304
>> >
>> > Rack1R4#sir
>> > Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
>> > D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
>> > N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
>> > E1 - OSPF external type 1, E2 - OSPF external type 2
>> > i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS
>> level-2
>> > ia - IS-IS inter area, * - candidate default, U - per-user static
>> > route
>> > o - ODR, P - periodic downloaded static route
>> > Gateway of last resort is not set
>> > 1.0.0.0/24 is subnetted, 4 subnets
>> > O IA 1.1.0.0 [110/130] via 180.1.34.3, 00:05:18, Serial1/0.3
>> > O IA 1.1.1.0 [110/130] via 180.1.34.3, 00:05:18, Serial1/0.3
>> > O IA 1.1.2.0 [110/130] via 180.1.34.3, 00:05:18, Serial1/0.3
>> > O IA 1.1.3.0 [110/130] via 180.1.34.3, 00:05:18, Serial1/0.3
>> > O IA 2.0.0.0/8 [110/66] via 180.1.34.3, 00:05:18, Serial1/0.3
>> > O IA 3.0.0.0/8 [110/65] via 180.1.34.3, 00:05:18, Serial1/0.3
>> > 4.0.0.0/24 is subnetted, 5 subnets
>> > C 4.4.0.0 is directly connected, Loopback1
>> >
>> > -------omitted-----
>> >
>> >
>> >
>> > Best Regards,
>> > Tharak Abraham Luke
>> >
>> >
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Received on Mon Apr 20 2009 - 11:15:57 ART