ADSL configuration on Cisco router
PPPoA with Cisco 1700+ WIC-1ADSL I have configured following with Cisco 1700 series router which includes WIC-1ADSL Card. Please make sure the IOS is latest than 12.2 Configure ATM interface with the PVC number, DSL Mode , encapsulation and dialer pool interface ATM0 no ip address no atm ilmi-keepalive dsl operating-mode auto pvc 0/38 encapsulation aal5mux ppp dialer dialer pool-member 1 In here please check the dsl operating mode and encapsulation with your ISP. Most probably dsl operating mode will works with auto. But you should have to check the encapsulation with ISP[aal5snap/ aal5mux]. BT(United Kingdom) use aal5mux. After that you have to configure the dialler interface with ADSL username and password accordingly PPPoA with Dynamic IP interface Dialer1 ip address negotiated ip nat outside encapsulation ppp dialer pool 1 ...