dhcp-filter-delete

DHCP snooping is a security feature which allows the network to avoid denial-of-service attacks from rogue DHCP servers. Trusted ports are defined to connect to the known DHCP servers. DHCP snooping also maintains a mapping table for current assignments.

In a DHCP packet flow, there are the following packet types:

  • DHCPDISCOVER/DHCPREQUEST — Packets from the DHCP client to server (UDP dest-port = 67)
  • DHCPOFFER/DHCPACK — Packets from the DHCP Server to client (UDP dest-port = 68)

This command is used to delete a DHCP filter.

Syntax   dhcp—filter-add name name-string 

name name-string

Specify a name for the filter.

Defaults   None

Access   Network Administrator

History   Command introduced in Version 2.6.0.

Usage   Use this command to create a DHCP filter for trusted ports.

Examples  To delete a DHCP filter, trust-server-1, use the following syntax:

CLI network-admin@switch > dhcp-filter-delete name trust-server-1

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