All ADSL services require and use the PPPoE or PPPoA protocols, and cable modem connections generally operate over VPNs using the PPTP/L2TP protocol (with MPLS available upon special request).
All ADSL services require and use the PPPoE or PPPoA protocols, and cable modem connections generally operate over DHCP. For speed under 30Mbit/sec, user can select to use VPNs using the PPTP/L2TP protocol (with MPLS available upon special request).