Now we have to do a few things:
1. To obtain from provider the type of connection.
2. If this is PPPoE, it is necessary to learn new connectivity options, such as:
ppp chap hostname 708650_R
ppp chap password 0 5axwUоza
ppp pap sent-username password 0 708650_R 5axwUоza
3. If the connection type is ethernet, then the interface gigabit0/2 to remove the settings PPPoE and to register IP or to get it via dhcp + hang ip nat outside
4. Do not forget to change the default route and configure NAT.
it is necessary to seek ip route 0.0.0.0 0.0.0.0 and ip nat inside source and correct under a new provider