Panasonic ZEQUO 6400, Operating Instructions Manual

Page: 262 / 1058

21. DHCP Local Relay Commands
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21.DHCP Local Relay Commands
DHCP (Dynamic Host Configuration Protocol) is a function to obtain an IP
address from the DHCP server when the client is booted. In general, a series
of packets to obtain an IP address is broadcasted.
DHCP Local Relay is a function to add option 82 information (the Switching
Hub's MAC address and the client's connection port number) to DHCP
packets if the client and DHCP server are on the same VLAN. A DHCP server
supporting option 82 can use option 82 information to apply the policy
required to assign an IP address. Original option 82 information is also
added to return packets from the DHCP server, so that the packets to the
client are transferred to the destination port instead of being broadcasted.
Figure 21-1 DHCP Local Relay overview
To use this function, the DHCP relay function needs to be enabled
separately.
Refer to "DHCP Relay Commands."