[配置路由器信息] Current configuration： ! hostname router1 isdn switch-type basic-net3 (1) ! interface Ethernet0 ip address 10.0.0.1 255.255.255.0 ip nat inside (2) ! interface bri 0 ip address negotiated (3) ip nat outside encapsulation PPP PPP authentication pap callin (4) PPP multlink (5) dialer-group 1 dialer string 2633 PPP pap sent-username 263 password 263 (6) ip route 0.0.0.0 0.0.0.0 bri 0 access-list 2 permit any (7) dialer-list 1 protocol ip permit (8) ip nat inside source list 2 interface bri 0 overload (9) …… End