DHCP

The switch supports Dynamic Host Configuration Protocol (DHCP) applications based on the global address pool or an address pool configured on a VLANIF interface. The switch also provides security guarantee for DHCP services and supports DHCP relay. The S5700LI switches do not support the function.

DHCP is a technology used to dynamically manage and configure clients in a concentrated manner. DHCP adopts the client/server model. The client applies to the server for configurations such as the IP address, subnet mask, and default gateway, and the server replies with corresponding configurations according to policies.

• DHCP
  
• Configure Global Address Pool
  A DHCP server can allocate IP addresses to clients by using the global address pool.
• Configure VLANIF Interface Address Pool
  If a DHCP server based on a VLANIF interface address pool is configured, all the users going online through this interface obtain IP addresses from the VLANIF interface address pool.
• Configure DHCP Delay
  By using a DHCP relay agent, the DHCP clients on a local area network (LAN) can communicate with the DHCP servers on other network segments, and obtain IP addresses from them. The DHCP clientson different network segments can also use one DHCP server. This reduces costs and achieves centralized device management.