DSL配置（1483桥接）

ISP：

int lo0
ip add 202.1.1.1 255.255.255.0 假设是互联网的

int atm1/0
bridge-group 1
pvc 1/100
encapsulation aal5snap
no shut
  
int bvi1 桥接的虚拟接口，用来代表桥接组
ip address 192.168.1.1 255.255.255.0

bridge 1 protocol ieee 全局模式 1:group-number
bridge 1 route ip  bridge传ip

Client:

int f0/0
ip add 192.168.1.2 255.255.255.0
no shut

ip route 0.0.0.0 0.0.0.0 192.168.1.1

CPE:(modem)

no ip routing
int f0/0
no shut
bridge-group 1

int atm1/0
no shut
bridge-group 1
pvc 2/200
encap aal5snap

bridge 1 protocol ieee