The proposed architecture supposes that IP adress allocation for inside-CLAN equipment and subscriber identification is made using DHCPv4 protocol (RFC2131) . CS provides the the insertion of DHCP Relay Agent Information Option (Option 82, RFC 3046) into all DHCP packets coming from inside-CLAN equipment to the L3SN.

AN - system access network;

CLAN - customer LAN;

L3SN - OSI 3-rd level network;

L2SN - OSI 2-nd level network.