From: Joe Chang (changjoe@earthlink.net)
Date: Tue Dec 10 2002 - 00:34:50 GMT-3
Jason, on R3 can you show us the output for "show ip ospf database external
162.1.1.0", so we can tell if its a problem with redistribution from ISIS to
OSPF, or with OSPF advertisement from R3 to the rest of the network.
----- Original Message -----
From: "Jason Cash" <cash2001@swbell.net>
To: <ccielab@groupstudy.com>
Sent: Monday, December 09, 2002 10:27 PM
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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