Message forwarding method, system, and relay agent device

摘要

The present disclosure provides a message forwarding method and system, and a relay agent device. The forwarding method includes: receiving a first DHCPv6 message from a DHCPv6 client through a layer-3 interface; generating a Relay-forward message, where the first DHCPv6 message is encapsulated into the Relay-forward message and an identifier of the layer-3 interface is added therein; and sending the Relay-forward message to a DHCPv6 server.

主权项

1. A message forwarding method, comprising:
receiving, by a relay agent device, a Dynamic Host Configuration Protocol for Internet Protocol version (DHCPv6) message from a DHCPv6 client through an interface on the relay agent device; generating, by the relay agent device, a DHCPv6 message, comprising a Relay-message Option, a first Interface-ID Option and a second Interface-ID Option, wherein both the first Interface-ID Option and the second Interface-ID Option are in compliance to Option 18 defined in Request For Comments (RFC) 3315; wherein the Relay-message Option encapsulates the first DHCPv6 packet, the first Interface-ID Option indicates an identifier of a port on the relay agent device on which the first DHCPv6 packet is received, and the second Interface-ID Option indicates an identifier of the interface through which the first DHCPv6 packet is received; and sending, by the relay agent device, the Relay-forward message to a DHCPv6 server.