RE: OSPF NSSA help please!

From: Scott M. Livingston (scottl@sprinthosting.net)
Date: Sat Mar 08 2003 - 14:58:11 GMT-3


Maybe someone else, but nothing is jumping out at me right now. If I
were you I would do the following - you probably have already done
number 1.

1. Bounce the OSPF PID on all the routers.
2. Rebuild it step by step.
3. I need to go back and either set this up and or do a dig on NSSA
behavior. It all looks good to me.

Thanks,
scott

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Gery Pang
Sent: Saturday, March 08, 2003 9:26 AM
To: Scott M. Livingston
Cc: OhioHondo; ccielab
Subject: Re: OSPF NSSA help please!

Sorry for not including the config for last mail.

R3-------R5--------R4--------R6

R3 and R5 : Area 0
R5 and R4: Area 45 (nssa)
R4 and R6: eigrp

My problem is R3 cannot get the eigrp routes from nssa area.

The followings are the related config and router table.

R4

interface Serial0.1 multipoint
 descrition interface to R5
 ip address 172.16.45.4 255.255.255.0

interface Serial0.2 multipoint
 descrition interface to R6
 ip address 172.16.46.4 255.255.255.0

router eigrp 10
 redistribute ospf 10
 network 172.16.46.0 0.0.0.255
 default-metric 1544 100 255 1 1500
 no auto-summary
!
router ospf 10
 router-id 172.16.4.4
 area 45 nssa
 redistribute eigrp 10 subnets
 network 172.16.4.4 0.0.0.0 area 45
 network 172.16.45.4 0.0.0.0 area 45
 neighbor 172.16.45.5 priority 1

The related routes of R4:

O IA 172.16.35.0 [110/65] via 172.16.45.5, 00:10:55, Serial0.1
C 172.16.45.0 is directly connected, Serial0.1
C 172.16.46.0 is directly connected, Serial0.2
C 172.16.40.0 is directly connected, Loopback10
C 172.16.4.0 is directly connected, Loopback0
O 172.16.5.0 [110/65] via 172.16.45.5, 00:10:55, Serial0.1
D 172.16.6.0 [90/2297856] via 172.16.46.6, 01:02:22, Serial0.2
O IA 172.16.3.0 [110/66] via 172.16.45.5, 00:10:55, Serial0.1
     172.60.0.0/24 is subnetted, 1 subnets
D 172.60.61.0 [90/2297856] via 172.16.46.6, 01:02:28, Serial0.2

R5

interface Loopback0
 ip address 172.16.5.5 255.255.255.0
 ip ospf network point-to-point

interface Serial0/0
 description interface to R4
 ip address 172.16.45.5 255.255.255.0
 encapsulation frame-relay
 no arp frame-relay
 frame-relay map ip 172.16.45.4 411 broadcast
 no frame-relay inverse-arp
 frame-relay lmi-type cisco

interface FastEthernet0/0
 description interface to R3
 ip address 172.16.35.5 255.255.255.0
 duplex auto
 speed auto

router ospf 10
 router-id 172.16.5.5
 log-adjacency-changes
 area 45 nssa
 network 172.16.5.5 0.0.0.0 area 45
 network 172.16.45.5 0.0.0.0 area 45
 network 172.16.51.0 0.0.0.255 area 50
 network 172.16.35.5 0.0.0.0 area 0

The related routes of R5: (these routes are missing in R3)

O N2 172.16.6.0/24 [110/20] via 172.16.45.4, 00:01:06, Serial0/0
O N2 172.16.46.0/24 [110/20] via 172.16.45.4, 00:01:06, Serial0/0
O N2 172.60.61.0 [110/20] via 172.16.45.4, 00:01:07, Serial0/0
O N2 172.60.61.16 [110/20] via 172.16.45.4, 00:01:07, Serial0/0

R5#sh ip ospf neig

Neighbor ID Pri State Dead Time Address
Interface
172.16.3.3 1 FULL/DR 00:00:35 172.16.35.3
FastEthernet0/0
172.16.4.4 1 FULL/BDR 00:01:45 172.16.45.4
Serial0/0

R3

interface Loopback0
 ip address 172.16.3.3 255.255.255.0
 ip ospf network point-to-point

interface Ethernet0
 description interface to R5
 ip address 172.16.35.3 255.255.255.0

router ospf 10
 router-id 172.16.3.3
 network 172.16.3.3 0.0.0.0 area 0
 network 172.16.35.3 0.0.0.0 area 0

R3#sh ip ospf neig

Neighbor ID Pri State Dead Time Address
Interface
172.16.5.5 1 FULL/DR 00:00:32 172.16.35.5
Ethernet0

R3#sh ip ospf data

       OSPF Router with ID (172.16.3.3) (Process ID 10)

                Router Link States (Area 0)

Link ID ADV Router Age Seq# Checksum Link
count
172.16.3.3 172.16.3.3 88 0x80000013 0xD88D 2
172.16.5.5 172.16.5.5 94 0x80000016 0x2C06 1

                Net Link States (Area 0)

Link ID ADV Router Age Seq# Checksum
172.16.35.5 172.16.5.5 95 0x80000001 0x735

                Summary Net Link States (Area 0)

Link ID ADV Router Age Seq# Checksum
172.16.4.0 172.16.5.5 444 0x80000001 0x90E3
172.16.5.0 172.16.5.5 611 0x8000000F 0xE6BE
172.16.45.0 172.16.5.5 449 0x80000015 0x999E
172.16.51.0 172.16.5.5 611 0x8000000B 0x98F1
172.16.51.16 172.16.5.5 611 0x8000000B 0xF782
172.16.51.32 172.16.5.5 611 0x8000000B 0x5713
172.16.51.48 172.16.5.5 613 0x8000000B 0xB6A3

                Type-5 AS External Link States

Link ID ADV Router Age Seq# Checksum Tag
172.10.10.0 172.16.3.3 96 0x80000009 0x1AEB 34
172.16.1.0 172.16.3.3 96 0x80000009 0x35D3 34
172.16.13.0 172.16.3.3 91 0x8000000E 0xFE08 0
192.168.10.0 172.16.3.3 96 0x80000009 0x4B17 34
192.168.10.16 172.16.3.3 96 0x80000009 0xAAA7 34
192.168.11.0 172.16.3.3 96 0x80000009 0xDF91 34
192.168.11.96 172.16.3.3 96 0x80000009 0x1CF4 34
192.168.12.0 172.16.3.3 96 0x80000009 0x7DD6 34
192.168.13.0 172.16.3.3 96 0x80000009 0x84CB 34
R3#

----- Original Message -----
From: "Scott M. Livingston" <scottl@sprinthosting.net>
To: "'Gery Pang'" <pang_gery@yahoo.com.hk>
Sent: Saturday, March 08, 2003 10:17 PM
Subject: RE: OSPF NSSA help please!

> Gery,
>
> Maybe not for others, but for me it's hard to figure this one out w/o
> seeing the configs and tables.
>
> 1. So you know for sure your neighbors are up between R3 and R5? Sorry
> to ask, but it would be easy to overlook.
>
> 2. There isn't any sort of OSPF config between R4 and R6 is there?
It's
> just EIGRP right?
>
> Seems like I had this happen to me before, but I don't remember what
it
> was. I set this up this morning just to make sure and I can't find a
> problem.
>
> Thanks,
> scott
>
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> Gery Pang
> Sent: Saturday, March 08, 2003 2:44 AM
> To: ccielab
> Subject: OSPF NSSA help please!
>
> Hi Group,
>
> R3-------R5--------R4--------R6
>
> R3 and R5 : Area 0
> R5 and R4: Area 45 (nssa)
> R4 and R6: eigrp
>
> The problem is R3 cannot see the routes of the eigrp domain.
> R5 has the routes as Type 7 LSA but these routes are not appear
> R3's ospf database as Type 5.
>
> I have only type "area 45 nssa" in both R4 and R5, and no access list
> is present.
>
> Please help!
>
> Thank you very much.
>
> Gery



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