Configuring DHCP Server and Relay Settings 1037
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Configuring DHCP Server and Relay
Settings
This chapter describes how to configure the switch to dynamically assign
network information to hosts by using the Dynamic Host Configuration
Protocol (DHCP).
The topics covered in this chapter include:
• DHCP Overview
• Default DHCP Server Values
• Configuring the DHCP Server (Web)
• Configuring the DHCP Server (CLI)
• DHCP Server Configuration Examples
DHCP Overview
DHCP is generally used between clients and servers for the purpose of
assigning IP addresses, gateways, and other network settings such as DNS and
SNTP server information.
DHCP Snooping is a security feature that monitors DHCP messages between
a DHCP client and DHCP server. It filters harmful DHCP messages and
builds a bindings database of (MAC address, IP address, VLAN ID, port)
tuples that are specified as authorized. DHCP snooping can be enabled
globally and on specific VLANs. For information about DHCP Snooping, see
"Snooping and Inspecting Traffic" on page 879.
Dell Networking switches support a DHCP client for obtaining the switch
address from the network, an IPv4 DHCP server for serving IPv4 addresses to
DHCP clients in the network, L2 and L3 DHCP relay for relaying IPv4
address assignments from network-based DHCP servers to clients in the same
or different subnets, and DHCP snooping for protecting the switch and
DHCP clients from certain security risks.
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