From: Kenneth Huss (khuss@nc.rr.com)
Date: Wed May 24 2006 - 16:10:59 ART
Nice work Larry!
Here is a great link you can use to to tweak options with FallBack bridging.
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat3750/12114ea1/3750scg/swfallbk.pdf#search='fallback%20bridging'
KEN
----- Original Message -----
From: "Larry Chuon" <lchuon@gmail.com>
To: "Duncan Maccubbin" <duncan.maccubbin@earthlink.net>
Cc: "Petr Lapukhov" <petrsoft@gmail.com>; "Cisco certification"
<ccielab@groupstudy.com>
Sent: Wednesday, May 24, 2006 1:44 PM
Subject: Re: fallback bridging
> Okay guys, after hours banging my head against the wall. I finally got
> further.
>
> r6(config-if)#do sh run int fa0/0
> !
> interface FastEthernet0/0
> ip address 155.1.37.6 255.255.255.0
> ipv6 enable
> !
> router eigrp 100
> network 155.1.37.6 0.0.0.0
> network 204.12.1.6 0.0.0.0
> no auto-summary
> !
> r6(config-if)#do sh ipv6 int brief | b FastEthernet0/0
> FastEthernet0/0 [up/up]
> FE80::217:EFF:FEAF:A8F8
>
> =============================
> sw1(config-router)#do sh run int vlan67
> !
> interface Vlan67
> ip address 155.1.67.7 255.255.255.0
> bridge-group 1
> !
> interface FastEthernet0/6
> no switchport
> ip address 155.1.37.7 255.255.255.0
> bridge-group 1
> !
> bridge 1 protocol vlan-bridge
> !
> router eigrp 100
> network 155.1.37.7 0.0.0.0
> network 155.1.67.7 0.0.0.0
> no auto-summary
> =============================
> r3(config-if)#do sh run int fa0/0
> !
> interface FastEthernet0/0
> ip address 155.1.67.3 255.255.255.0
> ipv6 address autoconfig
> !
> router eigrp 100
> network 155.1.67.3 0.0.0.0
> auto-summary
> !
> r3(config)#do sh ipv6 int brief | b FastEthernet0/0
> FastEthernet0/0 [up/up]
> FE80::217:59FF:FE02:9B20
>
> =============================
>
> Testing....
> r3(config)#do ping ipv6 FE80::217:EFF:FEAF:A8F8
> Output Interface: FastEthernet0/0
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to FE80::217:EFF:FEAF:A8F8, timeout is 2
> seconds:
> Packet sent with a source address of FE80::217:59FF:FE02:9B20
> !!!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max = 0/1/4 ms
>
> r3(config)#do sh ip route ei
> D 204.12.1.0/24 [90/33280] via 155.1.67.7, 00:02:58, FastEthernet0/0
> 155.1.0.0/24 is subnetted, 2 subnets
> D 155.1.37.0 [90/30720] via 155.1.67.7, 00:02:58, FastEthernet0/0
>
> r3(config)#do ping 204.12.1.254
>
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 204.12.1.254, timeout is 2 seconds:
> !!!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
>
> Thanks for all your helps.
>
> Larry
>
>
>
> On 5/24/06, Duncan Maccubbin <duncan.maccubbin@earthlink.net> wrote:
>>
>>
>> Yes, IPV6 works with fallback bridging.
>>
>>
>> -----Original Message-----
>> >From: Larry Chuon <lchuon@gmail.com>
>> >Sent: May 24, 2006 12:01 PM
>> >To: Petr Lapukhov <petrsoft@gmail.com>
>> >Cc: Cisco certification <ccielab@groupstudy.com>
>> >Subject: Re: fallback bridging
>> >
>> >Petr,
>> >
>> >In that case, if I turned on IPv6 on both R6 and R3, they should be able
>> to
>> >ping one another.
>> >Is that right?
>> >
>> >One other question relating to this. After turning on EIGRP for all
>> devices
>> >shown below, I have the follwoing error message:
>> >
>> >Neighbor 155.1.37.6 not on common subnet for FastEthernet0/6
>> >
>> >Is this because fallback bridging only works for NON-IP?
>> >
>> >TIA,
>> >
>> >Larry
>> >
>> >On 5/24/06, Petr Lapukhov <petrsoft@gmail.com> wrote:
>> >>
>> >> Larry,
>> >>
>> >> Fallback bridging works only for NON-IP traffic.. i.e for IPX/IPv6.
>> >>
>> >> HTH
>> >> Petr
>> >>
>> >> 2006/5/24, Larry Chuon <lchuon@gmail.com>:
>> >> >
>> >> > Hi group,
>> >> >
>> >> > I'm trying to follow an old thread at
>> >> > http://www.groupstudy.com/archives/ccielab/200509/msg00325.html and
>> >> > reading
>> >> >
>> >> >
>> >
>>
> http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12225see/scg/swfall
>> >> > bk.htm#
>> >> >
>> >> > But I'm still a bit confused. Lets say I have the following
>> >> > configuration:
>> >> >
>> >> > R6
>> >> > |.6
>> >> > | (vlan 67)
>> >> > |.7
>> >> > s1
>> >> > |fa0/3
>> >> > |
>> >> > R3
>> >> >
>> >> > bridge 1 prot vlan-bridge
>> >> > !
>> >> > int vlan67
>> >> > ip add 155.1.67.7 255.255.255.0
>> >> > bridge 1
>> >> > !
>> >> > int f0/3
>> >> > no switch
>> >> > ip add 255.1.37.7 255.255.255.0
>> >> > bridge 1
>> >> >
>> >> > There is no routing protocol running between R3 and R6. After
>> enabled
>> >> > fallback bridging, am I supposed to be able to ping from R3 to R6
>> >> > and
>> >> > vice
>> >> > versa? I must have done something wrong. It's not working for me.
>> >> >
>> >> > sw1(config-if)#do sh bridge 1
>> >> > Br Group Mac Address State Type Ports
>> >> > -------- ----------- ----- ---- -----
>> >> > 1 000a.8af6.ee8d Forward DYNAMIC Vl67 Fa0/13
>> >> > 1 0017.0eaf.a8f8 Forward DYNAMIC Fa0/6
>> >> > 1 0017.5902.9b20 Forward DYNAMIC Vl67 Fa0/3
>> >> >
>> >> > Please help.
>> >> >
>> >> > Larry
>> >> >
>> >> >
>> _______________________________________________________________________
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>> >
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>
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