Huawei S9300 Configuration Manual page 115

S9300&S9300E Terabit Routing Switch
Configuration Guide - IP Service
Figure 5-2 Typical networking of DHCPv6
DHCPv6 client
DHCPv6 Relay Function Supported by the S9300&S9300E
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Issue 01 (2012-03-15)
DHCPv6 client
DHCPv6 client DHCPv6 client
NOTE
Currently, the S9300&S9300E supports only the DHCPv6 relay function, and cannot function as the
DHCPv6 server or client.
Forwards messages from DHCPv6 clients.
If the S9300&S9300E is the first-hop DHCPv6 relay agent, it receives DHCPv6 messages
from DHCPv6 clients. Then the S9300&S9300E resolves, encapsulates, and forwards the
received DHCPv6 messages.
Forwards messages from DHCPv6 relay agents.
If the S9300&S9300E is the non-first-hop DHCPv6 relay agent, it receives DHCPv6
messages from DHCPv6 relay agents. Then the S9300&S9300E resolves, encapsulates,
and forwards the received DHCPv6 messages.
Forwards messages from DHCPv6 servers.
If the S9300&S9300E is the last-hop DHCPv6 relay agent, it receives DHCPv6 messages
from DHCPv6 servers. Then the S9300&S9300E resolves, encapsulates, and forwards the
received DHCPv6 messages.
Appends the remote ID.
The S9300&S9300E can append or forcibly append the remote ID in Relay-Forward
messages.
Limits the rate of DHCPv6 messages to be forwarded.
To prevent a large number of messages of clients or relay agents from attacking the device,
the S9300&S9300E can limit the rate of DHCPv6 messages to be forwarded. An alarm is
generated when the number of discarded packets exceeds the threshold.
Collects statistics on forwarded DHCPv6 messages.
If the S9300&S9300E is enabled with the DHCPv6 relay function, the S9300&S9300E
collects statistics on DHCPv6 messages passing through the DHCP relay agent.
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DHCPv6 relay agent
5 DHCPv6 Configuration
IPv6 network
DHCPv6 server
104