From: C Chan (cch.ccie@gmail.com)
Date: Sat Mar 01 2008 - 03:16:44 ARST
Hi all experts,
When I do the IEWB lab 16 task 6.1, I hit a question about IPv6 enablement
inside bridge group.
Originally, I think that I can enable "ipv6 address and ipv6 rip" on the BVI
interface. However, it doesn't work.
R2 cannot learn any RIPng routes from BB2 and even cannot ping-ipv6 to BB2.
My first question is "*Does IPV6 work on bridge group?*".
Then, I looked at the solution guide and tried to enable on ethernet
interface directly.
It shows some improvement as R2 can ping-ipv6 to BB2 successfully.
However, R2 still cannot learn any RIPng routes from BB2.
When I remove the "bridge-group" statement from ethernet interface. It works
perfectly.
*How does IPV6 rip packet works under bridge group? What is the solution for
this task 6.1?*
Regards,
CC
*Before removing "bridge-group" from ethernet interface*
R2#sr int fa0/0
interface FastEthernet0/0
no ip address
duplex auto
speed auto
ipv6 address 2001:192:10:1::2/64
ipv6 address FE80::2 link-local
ipv6 rip RIPV6 enable
bridge-group 10
end
R2#p ipv6 2001:192:10:1::2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:192:10:1::2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/0 ms
R2#p ipv 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 = 0/0/4 ms
R2#s ipv6 nei
IPv6 Address Age Link-layer Addr State
Interface
2001:192:10:1::254 0 0019.563f.b8e9 REACH Fa0/0
R2#s ipv6 rou rip
IPv6 Routing Table - 9 entries
Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP
U - Per-user Static route
I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary
O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2
ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
R2#
*After removing "bridge-group" from ethernet interface*
R2(config)#int fa0/0
R2(config-if)#no brid
R2(config-if)#no bridge-group 10
R2(config-if)#
Note: A random Spanning Tree Bridge Identifier address of 0000.0c42.3a98
has been chosen for Bridge Group 10 since there is no mac address
associated with the selected interface.
Ensure that this address is unique.
Note: A random mac address of 0000.0ca0.3adc
has been chosen for BVI in bridge group 10 since there is no mac
address
associated with the selected interface.
Ensure that this address is unique.
R2(config-if)#^Z
R2#sr
R2#sr int
*Mar 1 13:06:59 CST: RIPng: Sending multicast update on FastEthernet0/0 for
RIPV6
*Mar 1 13:06:59 CST: src=FE80::2
*Mar 1 13:06:59 CST: dst=FF02::9 (FastEthernet0/0)
*Mar 1 13:06:59 CST: sport=521, dport=521, length=52
*Mar 1 13:06:59 CST: command=2, version=1, mbz=0, #rte=2
*Mar 1 13:06:59 CST: tag=0, metric=1, prefix=2001:CC1E:1::2/128
*Mar 1 13:06:59 CST: tag=0, metric=1, prefix=2001:192:10:1::/64f
*Mar 1 13:07:01 CST: RIPng: response received from FE80::219:56FF:FE3F:B8E9
on FastEthernet0/0 for RIPV6
*Mar 1 13:07:01 CST: src=FE80::219:56FF:FE3F:B8E9 (FastEthernet0/0)
*Mar 1 13:07:01 CST: dst=FF02::9
*Mar 1 13:07:01 CST: sport=521, dport=521, length=72
*Mar 1 13:07:01 CST: command=2, version=1, mbz=0, #rte=3
*Mar 1 13:07:01 CST: tag=0, metric=1, prefix=2001:220:20:3::/64
*Mar 1 13:07:01 CST: tag=0, metric=1, prefix=2001:222:22:2::/64
*Mar 1 13:07:01 CST: tag=0, metric=1, prefix=2001:205:90:31::/64
*Mar 1 13:07:01 CST: RIPng: Added neighbor
FE80::219:56FF:FE3F:B8E9/FastEthernet0/0
*Mar 1 13:07:01 CST: RIPng: Inserted 2001:220:20:3::/64, nexthop
FE80::219:56FF:FE3F:B8E9, metric 2, tag 0
*Mar 1 13:07:01 CST: RIPng: Inserted 2001:222:22:2::/64, nexthop
FE80::219:56FF:FE3F:B8E9, metric 2, tag 0
*Mar 1 13:07:01 CST: RIPng: Inserted 2001:205:90:31::/64, nexthop
FE80::219:56FF:FE3F:B8E9, metric 2, tag 0
*Mar 1 13:07:01 CST: RIPng: Triggered update requested, in hold-down
*Mar 1 13:07:04 CST: RIPng: generating triggered update for RIPV6
*Mar 1 13:07:04 CST: RIPng: Suppressed null multicast update on
FastEthernet0/0 for RIPV6
R2#sr int fa0/0
interface FastEthernet0/0
no ip address
duplex auto
speed auto
ipv6 address 2001:192:10:1::2/64
ipv6 address FE80::2 link-local
ipv6 rip RIPV6 enable
end
R2#s ipv rou rip
IPv6 Routing Table - 8 entries
Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP
U - Per-user Static route
I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary
O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2
ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
R 2001:205:90:31::/64 [120/2]
via FE80::219:56FF:FE3F:B8E9, FastEthernet0/0
R 2001:220:20:3::/64 [120/2]
via FE80::219:56FF:FE3F:B8E9, FastEthernet0/0
R 2001:222:22:2::/64 [120/2]
via FE80::219:56FF:FE3F:B8E9, FastEthernet0/0
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