From: CCOnlineLabs.com (tschaffran@cconlinelabs.com)
Date: Tue Dec 10 2002 - 00:36:29 GMT-3
Are you studying ISIS for the CCIE lab? I thought ISIS was no longer a
requirement.
Tony Schaffran
CCOnlineLabs.com
http://www.cconlinelabs.com
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Jason Cash
Sent: Monday, December 09, 2002 6:27 PM
To: ccielab@groupstudy.com
Subject: ISIS / OSPF Redistribution
I am having problems with redistributing ISIS routes into OSPF for some
reason. Here is the scenarion:
R2(area A) L2 / R3(area B) L1-2 / R5(areaB) L1 are ISIS routers. I have
OSPF running on R1/ R3/ R4 all in area 0. The problem is that the route
generated from R5 (ISIS L1) 162.1.1.0/24 is not getting redistributed
into OSPF at R3 which is performing mutual redist.
Here is the layout:
R5
|
|
R2 R3
\ /
\ /
\ /
/ \
/ \
/ \
R1 R4
Here is some out put from router 3 then I'll post the configs:
r3#sh isis data det [THIS shows that the route is in R3] as well as
the sh ip ro
IS-IS Level-1 Link State Database:
LSPID LSP Seq Num LSP Checksum LSP Holdtime
ATT/P/OL
r3.00-00 * 0x0000000B 0xC9B8 957 1/0/0
Auth: Length: 7
Area Address: 0b
NLPID: 0xCC
Hostname: r3
IP Address: 153.1.53.67
Metric: 10 IP 153.1.200.0 255.255.255.0
Metric: 10 IP 153.1.53.64 255.255.255.224
Metric: 10 IS r3.01
Metric: 10 IS r5.00
Metric: 84 IP-External 153.1.200.1 255.255.255.255
Metric: 84 IP-External 153.1.200.4 255.255.255.255
Metric: 84 IP-External 153.1.43.0 255.255.255.128
Metric: 84 IP-External 153.1.104.1 255.255.255.255
Metric: 84 IP-External 153.1.101.0 255.255.255.0
Metric: 84 IP-External 1.1.1.1 255.255.255.255
Metric: 84 IP-External 1.3.3.3 255.255.255.255
Metric: 84 IP-External 1.2.2.2 255.255.255.255
Metric: 84 IP-External 1.4.4.4 255.255.255.255
Metric: 84 IP-External 186.1.1.0 255.255.255.0
r3.01-00 * 0x00000001 0xC85D 584 0/0/0
Auth: Length: 7
Metric: 0 IS r3.00
r5.00-00 0x00000006 0x6C5E 852 0/0/0
Auth: Length: 7
Area Address: 0b
NLPID: 0xCC
Hostname: r5
IP Address: 153.1.53.68
Metric: 10 IP 162.1.1.0 255.255.255.0
Metric: 10 IP 153.1.53.64 255.255.255.224
Metric: 10 IS r5.01
Metric: 10 IS r3.00
r3#sh ip ro [AND HERE]
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, ia - IS-IS
inter area
* - candidate default, U - per-user static route, o - ODR
P - periodic downloaded static route
Gateway of last resort is 153.1.200.2 to network 0.0.0.0
162.1.0.0/24 is subnetted, 1 subnets
i L1 162.1.1.0 [115/20] via 153.1.53.68, Serial1 <<<<<<<<<<<<<
10.0.0.0/24 is subnetted, 1 subnets
Here is the config on R3 [ the gist]
router ospf 1
log-adjacency-changes
redistribute isis level-2 subnets
network 153.1.43.0 0.0.0.127 area 0
network 153.1.53.67 0.0.0.0 area 0
network 153.1.53.64 0.0.0.31 area 0
network 153.1.200.3 0.0.0.0 area 0
network 153.1.200.0 0.0.0.255 area 0
!
router isis
net 0b.3333.3333.3333.00
redistribute ospf 1 metric 20 metric-type external
domain-password cisco2
area-password cisco1
Then the output on R1 and R4
r1#sh ip ro [HAS ALL THE ROUTES but the one from R5]
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, 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
153.1.0.0/16 is variably subnetted, 7 subnets, 4 masks
C 153.1.200.0/24 is directly connected, Serial0
O 153.1.200.3/32 [110/64] via 153.1.200.3, 00:29:29, Serial0
O 153.1.200.4/32 [110/64] via 153.1.200.4, 00:29:29, Serial0
O 153.1.43.0/25 [110/74] via 153.1.200.4, 00:29:29, Serial0
[110/74] via 153.1.200.3, 00:29:29, Serial0
O 153.1.53.64/27 [110/128] via 153.1.200.3, 00:29:29, Serial0
O 153.1.104.1/32 [110/65] via 153.1.200.4, 00:29:29, Serial0
C 153.1.101.0/24 is directly connected, Loopback0
1.0.0.0/24 is subnetted, 4 subnets
C 1.4.4.0 is directly connected, Loopback4
C 1.3.3.0 is directly connected, Loopback3
C 1.2.2.0 is directly connected, Loopback2
C 1.1.1.0 is directly connected, Loopback1
186.1.0.0/24 is subnetted, 1 subnets
C 186.1.1.0 is directly connected, Ethernet0
10.0.0.0/24 is subnetted, 1 subnets
O E2 10.1.1.0 [110/20] via 153.1.200.3, 00:08:08, Serial0
11.0.0.0/24 is subnetted, 1 subnets
O E2 11.1.1.0 [110/20] via 153.1.200.3, 00:08:08, Serial0
Here is the config for R5:
r5#sh run
Building configuration...
Current configuration : 971 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
service compress-config
service udp-small-servers
service tcp-small-servers
!
hostname r5
!
!
ip subnet-zero
no ip domain-lookup
!
clns routing
!
!
!
interface Loopback0
ip address 153.1.105.1 255.255.255.0
!
interface Ethernet0
ip address 162.1.1.1 255.255.255.0
ip router isis
no ip route-cache
no ip mroute-cache
no keepalive
!
interface Serial0
no ip address
no ip route-cache
no ip mroute-cache
shutdown
!
interface Serial1
ip address 153.1.53.68 255.255.255.224
ip router isis
no ip route-cache
no ip mroute-cache
clockrate 500000
isis password cisco
isis hello-multiplier 4
isis hello-interval 20
!
router isis
net 0b.5555.5555.5555.00
is-type level-1
area-password cisco1
!
ip classless
no ip http server
!
!
alias exec shi sh ip int brief
!
line con 0
exec-timeout 60 0
line aux 0
transport input all
line vty 0 4
login
!
CONFIG FOR R3 (all)
r3#sh run
Building configuration...
Current configuration : 1419 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
service udp-small-servers
service tcp-small-servers
!
hostname r3
!
!
ip subnet-zero
no ip domain-lookup
!
clns routing
!
!
!
interface Loopback0
ip address 153.1.103.1 255.255.255.0
!
interface Ethernet0
ip address 153.1.43.33 255.255.255.128
no ip route-cache
no ip mroute-cache
no keepalive
!
interface Serial0
ip address 153.1.200.3 255.255.255.0
ip router isis
encapsulation frame-relay
no ip route-cache
ip ospf network point-to-multipoint
no ip mroute-cache
frame-relay map clns 302 broadcast
frame-relay lmi-type cisco
!
interface Serial1
ip address 153.1.53.67 255.255.255.224
ip router isis
no ip route-cache
no ip mroute-cache
isis password cisco
isis hello-multiplier 4
isis hello-interval 20
!
router ospf 1
log-adjacency-changes
redistribute isis level-2 subnets
network 153.1.43.0 0.0.0.127 area 0
network 153.1.53.67 0.0.0.0 area 0
network 153.1.53.64 0.0.0.31 area 0
network 153.1.200.3 0.0.0.0 area 0
network 153.1.200.0 0.0.0.255 area 0
!
router isis
net 0b.3333.3333.3333.00
redistribute ospf 1 metric 20 metric-type external
domain-password cisco2
area-password cisco1
!
ip classless
no ip http server
!
!
alias exec shi sh ip int brief
!
line con 0
exec-timeout 60 0
line aux 0
transport input all
line vty 0 4
password 7 045802150C2E
no login
!
end
.
.
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