Type set nvram erase to erase any saved configuration. Type set nvram write and press Enter . Type set ppp wan0-0 login , where login is the username provided by your service provider, and press Enter . Type set ppp wan0-0 password , where password is the password provided by your service provider, and press Enter . Type set nat enable , and press Enter .
Type set dhcp server enable , and press Enter .
Type write , and press Enter . Type reboot , and press Enter . When the Cisco 675 operates in bridge mode, it behaves like a wire connecting a local PC directly to a service provider's network. To run applications that require IP communication, such as Ping, you need to enable bridging management. Type set bridging rfc1483 enabled , and press Enter .