[c-nsp] Bridging using Cisco 3640 routers

[Raymond Macharia]

Hello,
does anyone have any expirience working with Bridges done with Cisco
routers.
I have created a bridge between two locations and between the two locations
I have two leased lines ( 1 is HDLC and the scecond is on Frame relay)
I have also created a circuit group with this two links.
The problem I have is that once I have the bridge up, I get alot of
broadcasts traversing the links using up asignificant amount of bandwdith.
I have followed Cisco's transparent bridging documentation for this bridge
including the MAC address filters (extended access lists) which they have
given as an example
Below is section of the bridging configurations I have:

interface FastEthernet0/0

 ip address 192.168.200.1 255.255.255.0

 no ip route-cache

 duplex auto

 speed auto

 bridge-group 1

! Apply access list to interface

bridge-group 1 input-address-list 700

!

!

interface Serial1/0:1

 ip address 192.168.200.11 255.255.255.0

 no ip route-cache

 bridge-group 1

 bridge-group 1 circuit-group 1

!

interface Serial2/2:1

 ip address 192.168.200.21 255.255.255.0

 no ip route-cache

 bridge-group 1

 bridge-group 1 circuit-group 1

 !

no ip http server

!

ip classless

!

!*Accesslist to prevent broadcasts across the links*

access-list 700 permit 0a00.3ef1.b2ed 0000.0000.0000

access-list 700 permit 0009.5bf7.b69c 0000.0000.0000

access-list 700 permit FFFF.FFFF.FFFF 0000.0000.0000

access-list 700 deny 0000.0000.0000 FFFF.FFFF.FFFF

!

!

control-plane

!

bridge 1 protocol ieee

bridge 1 circuit-group 1 pause 10

bridge 1 circuit-group 1 source-based

!

!filter out non statically determined hosts

no bridge 1 acquire
Thanks

--
Raymond