Troubleshooting guide

Router(config)#end
Configure integrated routing and bridging (IRB) global parameters.
Router#configure terminal
Router(config)#bridge irb
Router(config)#bridge 1 protocol ieee
Router(config)#bridge 1 route ip
Router(config)#end
4.
Configure an IP address and subnet mask on the Cisco DSL Router Ethernet interface.
(Optional) Enable NAT inside on the Ethernet interface.
Router#configure terminal
Router(config)#interface ethernet 0
Router(config−if)#ip address <ip address> <subnet mask>
Router(config−if)#ip nat inside
Router(config−if)#no shut
Router(config−if)#end
5.
Configure the ATM interface of your Cisco DSL Router with an ATM permanent virtual circuit
(PVC), encapsulation type, and bridge group.
Router#configure terminal
Router(config)#interface atm 0
Router(config−if)#bridge−group 1
Router(config−if)#pvc <vpi/vci>
Router(config−if−atm−vc)#encapsulation aal5snap
Router(config−if−atm−vc)#no shut
Router(config−if−atm−vc)#end
6.
Create and configure a bridged virtual interface (BVI) to enable a dynamic IP address to be assigned
to your Cisco DSL Router. (Optional) Enable NAT outside on the BVI interface.
Router#configure terminal
Router(config)#interface bvi 1
Router(config−if)#mac address <address from line 2 of show interface bvi1>
Router(config−if)#ip address <ip address> <subnet mask>
Router(config−if)#no ip directed−broadcast
Router(config−if)#ip nat outside
Router(config−if)#end
7.
Configure a default route using the ISP's default gateway as the next hop.
Router#configure terminal
Router(config)#ip route 0.0.0.0 0.0.0.0 <default gateway to isp>
Router(config)#end
8.
Configure global NAT commands on the Cisco DSL Router to allow sharing of the static public IP
address of the Dialer interface.
Router#configure terminal
Router(config)#ip nat inside source list 1 interface dialer overload
Router(config)#access−list 1 permit <ip network address of ethernet0>
<wildcard mask>
Router(config)#end
Optional Configurations
NAT Pool, if additional IP addresses have been provided by your ISP.
Router(config)#ip nat inside source list 1 interface bvi1 overload
Router(config)#ip nat pool <nat pool name> <first ip address>
9.
Cisco DSL Router Configuration and Troubleshooting Guide