RE: I.E. Lab 16 IPv6 (7.4)

From: M S (michaelgstout@hotmail.com)
Date: Fri Feb 23 2007 - 01:21:02 ART


Hi John:
Remove the ipv6 configurations from the bvi interface.
You must have a duplicate ip address error.
I configured this using only the fastethernet0/0 interface and it works.

!
interface FastEthernet0/0
 description connect to bb2
 no ip address
 duplex auto
 speed auto
 ipv6 address 2001:192:10:1::/64 eui-64
 bridge-group 1
end

R2#ping 2001:192:10:1::254

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:192:10:1::254, timeout is 2
seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms

  --------------------------------------------------------------------

  From: "John Aitken" <john.aitken@gmail.com>
  Reply-To: "John Aitken" <john.aitken@gmail.com>
  To: "Cisco certification" <ccielab@groupstudy.com>
  Subject: I.E. Lab 16 IPv6 (7.4)
  Date: Thu, 22 Feb 2007 22:18:26 +0000
  Guys,

  Can anyone explain to me why this isn't working?

  R2 FE0/0 is connected to BB2 E0, speaking IPv6 rip and sending IPv6
  RIP
  routes to BB2, which is seeing and installing them in it's route
  tables.

  R2 FE0/0 is part of a bridge group (Not in use for this section). If
  I put
  the config on the BVI interface I don't recieve any IPv6 RIP routes
  from BB2
  . If I put the IPv6 config on the fastethernet I get exactly exactly
  the
  same results (In the answer key the config is on the fastethernet,
  not the
  BVI).

  If I remove the interface from the bridge group it all springs into
  life, if
  I re add it then same again. Rebooted also to see if that fixed
  anything.

  Have the following config on R2:

  interface BVI1
    ip address 192.10.1.2 255.255.255.0
    ipv6 address 2001:192:10:1::/64 eui-64
    ipv6 rip RIPng enable
  end

  or alternately (Removing from FA0/0):

  interface FastEthernet0/0
  no ip address
  ipv6 address 2001:192:10:1::/64 eui-64
  ipv6 rip RIPng enable
  bridge-group 1
  end

  On BB2 it's:

  interface Ethernet0
    ip address 192.10.1.254 255.255.255.0
  ipv6 address 2001:192:10:1::254/64
    ipv6 rip RIPng enable
  end
  !
  ipv6 router rip RIPng
  distribute-list prefix-list RIPng out
  !
  ipv6 prefix-list RIPng seq 5 permit 2001:205:90:31::/64
  ipv6 prefix-list RIPng seq 10 permit 2001:220:20:3::/64
  ipv6 prefix-list RIPng seq 15 permit 2001:222:22:2::/64

  (These are the routes I'm expecting to see)

  Some debugs:

  R2 (BVI)

  *May 11 14:37:57.167: RIPng: Sending multicast update on BVI1 for
  RIPng
  *May 11 14:37:57.167: src=FE80::20D:BDFF:FE27:5C20
  *May 11 14:37:57.167: dst=FF02::9 (BVI1)
  *May 11 14:37:57.167: sport=521, dport=521, length=112
  *May 11 14:37:57.167: command=2, version=1, mbz=0, #rte=5
  *May 11 14:37:57.167: tag=0, metric=1,
  prefix=2001:CC1E:1::2/128
  *May 11 14:37:57.167: tag=0, metric=1,
  prefix=2001:CC1E:1:25::/64
  *May 11 14:37:57.167: tag=0, metric=1,
  prefix=2001:192:10:1::/64
  *May 11 14:37:57.167: tag=0, metric=2,
  prefix=2001:CC1E:1::5/128
  *May 11 14:37:57.171: tag=0, metric=2,
  prefix=2001:CC1E:1:5::/64

  R2 (fa0/0)
  *May 11 14:31:31.979: RIPng: Sending multicast update on
  FastEthernet0/0 for
  RIPng
  *May 11 14:31:31.979: src=FE80::20D:BDFF:FE27:5C20
  *May 11 14:31:31.979: dst=FF02::9 (FastEthernet0/0)
  *May 11 14:31:31.979: sport=521, dport=521, length=112
  *May 11 14:31:31.979: command=2, version=1, mbz=0, #rte=5
  *May 11 14:31:31.979: tag=0, metric=1,
  prefix=2001:CC1E:1::2/128
  *May 11 14:31:31.979: tag=0, metric=1,
  prefix=2001:192:10:1::/64
  *May 11 14:31:31.979: tag=0, metric=1,
  prefix=2001:CC1E:1:25::/64
  *May 11 14:31:31.979: tag=0, metric=2,
  prefix=2001:CC1E:1::5/128
  *May 11 14:31:31.983: tag=0, metric=2,
  prefix=2001:CC1E:1:5::/64

  (Never recieve any from BB2)
  BB2

  Mar 1 00:31:40.559: RIPng: Output filter suppresses
  2001:192:10:1::/64
  Mar 1 00:31:40.563: RIPng: Sending multicast update on Ethernet0 for
  RIPng
  Mar 1 00:31:40.567: src=FE80::2E0:1EFF:FE67:F6EB
  Mar 1 00:31:40.571: dst=FF02::9 (Ethernet0)
  Mar 1 00:31:40.571: sport=521, dport=521, length=72
  Mar 1 00:31:40.575: command=2, version=1, mbz=0, #rte=3
  Mar 1 00:31:40.575: tag=0, metric=1,
  prefix=2001:205:90:31::/64
  Mar 1 00:31:40.579: tag=0, metric=1,
  prefix=2001:220:20:3::/64
  Mar 1 00:31:40.583: tag=0, metric=1,
  prefix=2001:222:22:2::/64
  Mar 1 00:31:40.587: RIPng: Output filter suppresses
  2001:192:10:1::/64
  Mar 1 00:31:40.591: RIPng: Output filter suppresses
  2001:CC1E:1::2/128
  Mar 1 00:31:40.595: RIPng: Output filter suppresses
  2001:CC1E:1::5/128
  Mar 1 00:31:40.595: RIPng: Output filter suppresses
  2001:CC1E:1:5::/64
  Mar 1 00:31:40.599: RIPng: Output filter suppresses
  2001:CC1E:1:25::/64
  Mar 1 00:31:40.603: RIPng:

  Mar 1 00:31:45.723: RIPng: response received from
  FE80::20D:BDFF:FE27:5C20
  on Ethernet0 for RIPng
  Mar 1 00:31:45.727: src=FE80::20D:BDFF:FE27:5C20 (Ethernet0)
  Mar 1 00:31:45.731: dst=FF02::9
  Mar 1 00:31:45.731: sport=521, dport=521, length=112
  Mar 1 00:31:45.735: command=2, version=1, mbz=0, #rte=5
  Mar 1 00:31:45.735: tag=0, metric=1,
  prefix=2001:CC1E:1::2/128
  Mar 1 00:31:45.739: tag=0, metric=1,
  prefix=2001:CC1E:1:25::/64
  Mar 1 00:31:45.743: tag=0, metric=1,
  prefix=2001:192:10:1::/64
  Mar 1 00:31:45.747: tag=0, metric=2,
  prefix=2001:CC1E:1:5::/64u
  FRS-BB2#u all
  Mar 1 00:31:45.747: tag=0, metric=2,
  prefix=2001:CC1E:1::5/128

  Am I just banging my head against a bug or am I missing something
  blindingly
  obvious?

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