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Bridge Routing Need Access to router

Posted on 2004-11-10
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Last Modified: 2010-04-17
I have a bridge setup thru a router.  Config are as follows

SITE A:  
VLAN 12 Data - 192.168.20.0
VLAN 10 Voice - 10.2.6.0

Switch 3550 f0/12
VLAN 12 - 192.168.20.51

Switchport is trunk Native VLAN 12
This port goes to router @ SiteB

SITE B:
VLAN 12 Data - 192.168.20.0
VLAN 2 Voice - 10.2.6.0

Switch 2950 f0/12
VLAN 12 - 192.168.20.71

Switchport is trunk Native VLAN 12
This port goes to 1841 router

Router config is below.


!
            !
            !
            !
            !
            ip subnet-zero
            !
            bridge irb
            !
            !
            !
            interface FastEthernet0/0
             no ip address
             no ip directed-broadcast
             duplex auto
             speed auto
             bridge-group 150
            !
            interface Serial0/0
             no ip address
             no ip directed-broadcast
             bridge-group 150
            !
            interface BVI150
             ip address 172.16.30.4 255.255.255.0
             no ip directed-broadcast
            !
            ip classless
            no ip http server
            !
            bridge 150 protocol ieee
             bridge 150 route ip


Question is, how do I configure this router to be able to telnet into it via Site A or B?

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Question by:dwest576
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Expert Comment

by:Don Johnston
ID: 12550816
Can you show the topology or what's connected where?
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Author Comment

by:dwest576
ID: 12551126
Site A: 3550 Switch connected to Router on cox communications network.  From their router connected to my Serial interface on my 1841 @ site B F0/0 on 1841 is connected to port 12 of 2950 @ Site B

I Have IP's on 3550 and 2950 that I can hit.  Need IP on router that I can hit.
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Expert Comment

by:Don Johnston
ID: 12555381
You're not going to be able to do this with your topology.

The problem is the router is recieving dot1q frames but the f0/0 interface is not configured for trunking. So it doesn't understand them. It just encapsulates and passes them over the serial interface.

You either need to have just one VLAN going through your router (actually a bridge at this point)

or

Have all interfaces of your router trunk (not an option since you have a serial link)

-Don

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Author Comment

by:dwest576
ID: 12589463
Is there a way to reconfigure the network topology to allow this?
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Author Comment

by:dwest576
ID: 12595153
Setting a Secondary IP address in BVI150 resolves this issue

ip address 192.168.20.72 255.255.255.0 secondary
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