Patent ID: 8917723

Claim:
A method for processing an Internet Protocol version 6 (IPv6) packet, comprising: receiving, by an access node, a first IPv6 packet from a terminal; adding, by the access node, a first IPv6 extension header to the first IPv6 packet to generate a second IPv6 packet, wherein the first IPv6 extension header carries access line information, a next header and the length of an extension header; the next header indicates information of a next extension header; forwarding, by the access node, the second IPv6 packet to an IP edge node; receiving, by the IP edge node, the second IPv6 packet; obtaining, by the IP edge node, the access line information from the second IPv6 packet, and deleting the first IPv6 extension header from the second IPv6 packet to obtain the first IPv6 packet; generating, by the IP edge node, a third IPv6 packet according to the access line information and the first IPv6 packet; and forwarding, by the IP edge node, the third IPv6 packet to a network server, wherein the first IPv6 packet comprises a first dynamic host configuration protocol (DHCP) message.