From: Chung, Kevin (KCHUNG@xxxxxxxxxxxx)
Date: Wed Jun 16 1999 - 14:30:18 GMT-3
Hi Everyone,
My name is Kevin Chung and I just joined the group. My test date is Aug 18.
Anyways, I may have an idea as to why that config does not work. Note that
in OSPF, networks are advertised as a network LSA(DR present) or router
LSA(no DR). So in this case, it must be advertised as a router LSA. With
the 240 mask, the networks that will be advertised are
172.16.1.128,160,192,and 224. Note that none of these networks fall under
the network statement under OSPF. You must change your network statement to
network 172.16.1.128 0.0.0.15 area 0
network 172.16.1.160 0.0.0.15 area 0
network 172.16.1.192 0.0.0.15 area 0
network 172.16.1.224 0.0.0.15 area 0
This should work.
Kevin Chung
Extranet Engineer
Allstate Insurance Company
phone: 847-402-9620
pager: 1-800-759-8888 pin 2127582
text page: www.skytel.com pin 2127582
2127582@skytel.com
email: kchung@allstate.com
-----Original Message-----
From: Gopal K Naganaboyina [mailto:gopala.naganaboyina@wcom.com]
Sent: Wednesday, June 16, 1999 11:31 AM
To: brife@bignet.net; burts@ccci.com
Cc: ccielab@groupstudy.com
Subject: RE: OSPF and Loopback intf.
Try redistribute connected subnets. This must surely work.
Regards,
Gopal
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Ben Rife
Sent: Wednesday, June 16, 1999 11:25 AM
To: Rick Burts
Cc: ccielab@groupstudy.com
Subject: Re: OSPF and Loopback intf.
I just can't get this to work. My secondary networks on the loopback on
r2520 will not show up in the route table of r2503. Here is my OSPF and
Loopback configs....
Router 2503
r2503#sh run
Building configuration...
Current configuration:
!
version 11.2
no service password-encryption
no service udp-small-servers
no service tcp-small-servers
!
hostname r2503
!
!
no ip domain-lookup
isdn switch-type basic-ni1
!
interface Ethernet0
ip address 192.168.40.2 255.255.255.0
!
interface Serial0
ip address 172.16.1.146 255.255.255.240
!
interface Serial1
no ip address
clockrate 64000
!
interface BRI0
no ip address
isdn spid1 0835866101 8358661
isdn spid2 0835866301 8358663
!
router ospf 10
network 172.16.1.146 0.0.0.0 area 0
!
no ip classless
!
!
line con 0
line aux 0
line vty 0 4
login
!
end
Router 2520
r2520#sh run
Building configuration...
Current configuration:
!
version 11.2
no service password-encryption
no service udp-small-servers
no service tcp-small-servers
!
hostname r2520
!
!
no ip domain-lookup
!
interface Loopback0
ip address 172.16.1.225 255.255.255.240 secondary
ip address 172.16.1.193 255.255.255.240 secondary
ip address 172.16.1.129 255.255.255.240 secondary
ip address 172.16.1.161 255.255.255.240
!
interface Ethernet0
no ip address
!
interface Serial0
no ip address
shutdown
no fair-queue
!
interface Serial1
no ip address
shutdown
clockrate 56000
!
interface Serial2
ip address 172.16.1.145 255.255.255.240
bandwidth 1544
clockrate 56000
!
interface Serial3
no ip address
shutdown
!
interface BRI0
no ip address
shutdown
!
router ospf 10
network 172.16.1.161 0.0.0.0 area 0
network 172.16.1.225 0.0.0.0 area 0
network 172.16.1.129 0.0.0.0 area 0
network 172.16.1.193 0.0.0.0 area 0
network 172.16.1.145 0.0.0.0 area 0
!
no ip classless
lat service ABLE password CISCO
!
!
line con 0
line aux 0
line vty 0 4
login
!
end
Route table of r2503
r2503#sh ip route
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate
default
U - per-user static route, o - ODR
Gateway of last resort is not set
C 192.168.40.0/24 is directly connected, Ethernet0
172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks
O 172.16.1.161/32 [110/65] via 172.16.1.145, 00:05:15, Serial0
C 172.16.1.144/28 is directly connected, Serial0
Thanks for any help you can provide,
Ben Rife
CCIE Candidate
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