From: Dillon Yang (dillony@gmail.com)
Date: Sun Sep 04 2005 - 11:34:41 GMT-3
Hi, KY:
Sorry! I forget to tell you need not to set VL between R3 and R6 if you
rely on the tunnel because they have no the common area.
You know the R3 reaches the area 0 and area 3, and R6 reaches area 6 and
area 5, you can let R6 into the area 0 by add VL between R5 and R6, for
redundance, you can add tunnel between R3 and R6 with the same subnet, say
1.1.36.0/24, then R6 has two approach to area 0, then area 6 has been
attached to area 0. You can apply you QoS to make the tunnel default for the
sw2-sw1 traffic.
HTH
dillon
----- Original Message -----
From: "Dillon Yang" <dillony@gmail.com>
To: <nhqky888@ybb.ne.jp>
Cc: <ccielab@groupstudy.com>
Sent: Sunday, September 04, 2005 10:19 PM
Subject: Re: Re: Re: Tunneling over OSPF
> Hi, KY:
>
> GIVE the tunnel a explicit address and ADVERTISE it , the VL will be OK!
> Why not paste the output of "show ip ospf data" for each?
>
> HTH
> dillon
>
> ----- Original Message -----
> From: <nhqky888@ybb.ne.jp>
> To: <ccielab@groupstudy.com>
> Sent: Sunday, September 04, 2005 3:11 PM
> Subject: Re: Re: Re: Tunneling over OSPF
>
>
>> Dillon,
>>
>> I accomplished this task, excluding virtual link between R3 and R6.
>> This link for area 6 on R6 was not established.
>> Thanks, Dillon, your comment was very helpful.
>>
>> KY
>>
>>
>> The result is as following;
>>
>>
>> SW2#trace 1.1.10.7
>>
>> Type escape sequence to abort.
>> Tracing the route to 1.1.10.7
>>
>> 1 1.1.20.6 0 msec 4 msec 4 msec
>> 2 3.3.3.3 36 msec 28 msec 32 msec
>> 3 1.1.10.7 28 msec * 28 msec
>> SW2#
>>
>>
>>
>> R3#t
>> !
>> interface Tunnel0
>> ip unnumbered Loopback0
>> tunnel source 1.1.235.3
>> tunnel destination 1.1.56.6
>> end
>>
>> R3#srr o
>> router ospf 1
>> router-id 3.3.3.3
>> log-adjacency-changes
>> area 3 virtual-link 6.6.6.6
>> network 1.1.10.3 0.0.0.0 area 3
>> network 1.1.235.3 0.0.0.0 area 0
>> network 3.3.3.3 0.0.0.0 area 3
>> !
>>
>> R3#o
>>
>> Neighbor ID Pri State Dead Time Address
>> Interface
>> 5.5.5.5 1 FULL/DR 00:01:30 1.1.235.5
>> Serial0/0
>> 6.6.6.6 0 FULL/ - 00:00:31 6.6.6.6 Tunnel0
>> 2.2.2.2 1 FULL/BDR 00:00:38 1.1.10.2
>> Ethernet0/0
>> 7.7.7.7 1 FULL/DR 00:00:32 1.1.10.7
>> Ethernet0/0
>>
>> R3#sh ip o v
>> Virtual Link OSPF_VL0 to router 6.6.6.6 is down
>> Run as demand circuit
>> DoNotAge LSA allowed.
>> Transit area 3, Cost of using 65535
>> Transmit Delay is 1 sec, State DOWN,
>> Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
>> R3#
>>
>> R3#r
>> 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, 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
>> C 1.1.10.0 is directly connected, Ethernet0/0
>> O IA 1.1.20.0 [110/855] via 1.1.235.5, 00:01:45, Serial0/0
>> O IA 1.1.56.0 [110/845] via 1.1.235.5, 00:01:45, Serial0/0
>> C 1.1.235.0 is directly connected, Serial0/0
>> 2.0.0.0/24 is subnetted, 1 subnets
>> O 2.2.2.0 [110/65] via 1.1.235.2, 00:02:17, Serial0/0
>> 3.0.0.0/24 is subnetted, 1 subnets
>> C 3.3.3.0 is directly connected, Loopback0
>> 5.0.0.0/24 is subnetted, 1 subnets
>> O 5.5.5.0 [110/65] via 1.1.235.5, 00:02:18, Serial0/0
>> 6.0.0.0/24 is subnetted, 1 subnets
>> O 6.6.6.0 [110/11112] via 6.6.6.6, 00:01:46, Tunnel0
>> 7.0.0.0/24 is subnetted, 1 subnets
>> O 7.7.7.0 [110/11] via 1.1.10.7, 00:01:47, Ethernet0/0
>> 8.0.0.0/24 is subnetted, 1 subnets
>> O IA 8.8.8.0 [110/856] via 1.1.235.5, 00:01:47, Serial0/0
>> R3#
>>
>>
>>
>> R6#t
>> !
>> interface Tunnel0
>> ip unnumbered Loopback0
>> tunnel source 1.1.56.6
>> tunnel destination 1.1.235.3
>> end
>>
>> R6#srr o
>> router ospf 1
>> router-id 6.6.6.6
>> log-adjacency-changes
>> area 3 virtual-link 3.3.3.3
>> area 5 virtual-link 5.5.5.5
>> area 6 stub
>> network 1.1.20.6 0.0.0.0 area 6
>> network 1.1.56.6 0.0.0.0 area 5
>> network 6.6.6.6 0.0.0.0 area 3
>> !
>>
>> R6#o
>>
>> Neighbor ID Pri State Dead Time Address
>> Interface
>> 3.3.3.3 1 FULL/ - 00:00:39 3.3.3.3 Tunnel0
>> 5.5.5.5 1 FULL/ - 00:00:38 1.1.56.5 Serial0
>> 8.8.8.8 1 FULL/DR 00:00:38 1.1.20.8
>> Ethernet0
>> R6#sh ip o v
>> Virtual Link OSPF_VL1 to router 5.5.5.5 is up
>> Run as demand circuit
>> DoNotAge LSA allowed.
>> Transit area 5, via interface Serial0, Cost of using 64
>> Transmit Delay is 1 sec, State POINT_TO_POINT,
>> Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
>> Hello due in 00:00:06
>> Adjacency State FULL (Hello suppressed)
>> Index 1/3, retransmission queue length 0, number of retransmission 2
>> First 0x0(0)/0x0(0) Next 0x0(0)/0x0(0)
>> Last retransmission scan length is 1, maximum is 1
>> Last retransmission scan time is 0 msec, maximum is 0 msec
>> Virtual Link OSPF_VL0 to router 3.3.3.3 is up
>> Run as demand circuit
>> DoNotAge LSA allowed.
>> Transit area 3, via interface Tunnel0, Cost of using 11121
>> Transmit Delay is 1 sec, State POINT_TO_POINT,
>> Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
>> Hello due in 00:00:07
>> R6#
>>
>> R6#r
>> 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
>>
>> 1.0.0.0/24 is subnetted, 4 subnets
>> O 1.1.10.0 [110/11121] via 3.3.3.3, 00:03:41, Tunnel0
>> C 1.1.20.0 is directly connected, Ethernet0
>> C 1.1.56.0 is directly connected, Serial0
>> O 1.1.235.0 [110/845] via 1.1.56.5, 00:04:01, Serial0
>> 2.0.0.0/24 is subnetted, 1 subnets
>> O 2.2.2.0 [110/846] via 1.1.56.5, 00:04:01, Serial0
>> 3.0.0.0/24 is subnetted, 1 subnets
>> O 3.3.3.0 [110/11112] via 3.3.3.3, 00:03:41, Tunnel0
>> 5.0.0.0/24 is subnetted, 1 subnets
>> O 5.5.5.0 [110/65] via 1.1.56.5, 00:04:03, Serial0
>> 6.0.0.0/24 is subnetted, 1 subnets
>> C 6.6.6.0 is directly connected, Loopback0
>> 7.0.0.0/24 is subnetted, 1 subnets
>> O 7.7.7.0 [110/11122] via 3.3.3.3, 00:03:43, Tunnel0
>> 8.0.0.0/24 is subnetted, 1 subnets
>> O 8.8.8.0 [110/11] via 1.1.20.8, 00:40:15, Ethernet0
>> R6#
>>
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