DHCP SnOoping –

Turn DHCP snooping on,  it will collate a database of IP/MAC/Interface/etc. for all DHCP requests it sees. You can also statically add addresses for devices with static IP’s.

 

# conf t

# ip dhcp snooping

# ip dhcp snooping vlan 1

# ip dhcp snooping verify mac-address

# int fa0/1

# ip dhcp snooping vlan 1

# ip dhcp snooping trust

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