Re: NMC lab scenario 8: Ipv6ip tunneling problem

From: Bob Sinclair (bsinclair@netmasterclass.net)
Date: Fri Apr 22 2005 - 15:40:28 GMT-3


Choon Ho Loi,

For best feedback result, please check the online SHOWiT output and the online
Answer key. Also, post the online Forum and you can get answers from our
experts in this lab, and from others who have tackled this lab.

It looks to me like you have used prefix FEC0:: where we are using FEC1. But
that should not be a problem if you are consistent.

See you in the Netmasterclass Forum!

Bob Sinclair
CCIE #10427, CCSI 30427, CISSP
www.netmasterclass.net

  ----- Original Message -----
  From: Loi, Choon Ho
  To: ccielab@groupstudy.com
  Sent: Friday, April 22, 2005 2:03 PM
  Subject: NMC lab scenario 8: Ipv6ip tunneling problem

  Hi,
  I had problem in attempting NMC lab 8 (ipv6 session)
  Following is my configuration for R1 and R2.
  I couldn't make ospf to work. I wonder what did I did wrong...

  TIA.

  R1:

  interface Tunnel100
   no ip address
   no ip redirects
   ipv6 address FEC0::/64 eui-64
   ipv6 enable
   no ipv6 nd suppress-ra
   ipv6 ospf network non-broadcast
   ipv6 ospf neighbor FEC0::5EFE:AC10:6601
   ipv6 ospf 100 area 0
   tunnel source Loopback0
   tunnel mode ipv6ip isatap

  Debug:

  r1#sh ipv6 ospf nei

  Neighbor ID Pri State Dead Time Interface ID
  Interface
  N/A 0 ATTEMPT/DROTHER - 0
  Tunnel100
  r1#
  *Apr 22 16:57:18.551: OSPFv3: Sending poll to 0.0.0.0 address
  FEC0::5EFE:AC10:6601 on Tunnel100
  *Apr 22 16:57:18.551: IPV6: source FE80::5EFE:AC10:6501 (local)
  *Apr 22 16:57:18.551: dest FEC0::5EFE:AC10:6601 (Tunnel100)
  *Apr 22 16:57:18.551: traffic class 224, flow 0x0, len 76+0, prot
  89, hops 1, originating
  *Apr 22 16:57:18.551: IPv6: Sending on Tunnel100

  R2:

  interface Tunnel100
   no ip address
   no ip redirects
   ipv6 address FEC0::/64 eui-64
   ipv6 enable
   no ipv6 nd suppress-ra
   ipv6 ospf network non-broadcast
   ipv6 ospf priority 0
   ipv6 ospf 100 area 0
   tunnel source Loopback0
   tunnel mode ipv6ip isatap

  Debug:

  *Apr 21 09:37:31.161: OSPFv3: 172.16.101.1 address FE80::5EFE:AC10:6501
  on Tunnel100 is dead
  *Apr 21 09:37:31.161: %OSPFv3-5-ADJCHG: Process 100, Nbr 172.16.101.1 on
  Tunnel100 from INIT to DOWN, Neighbor Down: Dead timer expired
  *Apr 21 09:37:31.161: OSPFv3: Neighbor change Event on interface
  Tunnel100
  *Apr 21 09:37:31.161: OSPFv3: DR/BDR election on Tunnel100
  *Apr 21 09:37:31.161: OSPFv3: Elect BDR 0.0.0.0
  *Apr 21 09:37:31.161: OSPFv3: Elect DR 0.0.0.0
  *Apr 21 09:37:31.161: DR: none BDR: none

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