Cisco 877 Router Adsl Bridge Mode ??
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10-03-2013 12:33 AM - edited 03-04-2019 09:13 PM
Hi, I have the following config, I am trying to put the cisco 877 in bridge mode and let the device attached to the switchport handle all the negotiation and receive the public ip address, but for some reason this is not working, am I missing something ?
Thanks in advance...
Building configuration...
Current configuration : 877 bytes
!
version 12.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
!
resource policy
!
no ip routing
no ip cef
!
!
!
!
!
!
!
!
!
!
!
!
!
interface ATM0
no ip address
no ip route-cache
no atm ilmi-keepalive
pvc 8/35
encapsulation aal5snap
!
dsl operating-mode auto
bridge-group 1
!
interface FastEthernet0
!
interface FastEthernet1
!
interface FastEthernet2
!
interface FastEthernet3
!
interface Vlan1
no ip address
no ip route-cache
bridge-group 1
!
!
!
no ip http server
no ip http secure-server
!
!
!
!
!
control-plane
!
bridge 1 protocol ieee
!
line con 0
no modem enable
line aux 0
line vty 0 4
!
scheduler max-task-time 5000
!
webvpn context Default_context
ssl authenticate verify all
!
no inservice
!
end
Router#
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10-03-2013 12:57 AM
Well it seems a bit overkill to use a nice 877 router just for this!
The config looks right to me - have you tried a 'show spanning-tree' to make sure all ports are forwarding.
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10-03-2013 12:34 PM
If the end device is the ISP modem, I wouldn't worry about configuring the ATM interface or bridge protocols. I would configure the ethernet interface for ip address negotiated and route accordingly.
I also agree with Jamie, that the 877 is a bit of an overkill when that can be configured for the ADSL service you have subscribed to. Unless it's VDSL, then you need different equipment.
