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IP DHCP Snooping

Joshuabowers
Level 1
Level 1

Hello,

 

I understand that "ip dhcp snooping" turns on the snooping capabilities and you have to trust a link for a dhcp.

I just don't understand the ip dhcp snooping vlan ## command. can someone please explain this command.

1 Reply 1

rvarelac
Level 7
Level 7

Hi Joshua , 

 

Accordingly to the command reference:

"By default, the DHCP snooping feature is inactive on all VLANs. You may enable the feature on a single VLAN or a range of VLANs.

 

You can configure DHCP snooping for a single VLAN or a range of VLANs:

To configure a single VLAN, enter a single VLAN number.

To configure a range of VLANs, enter a beginning and an ending VLAN number or a dash-separated pair of VLAN numbers.

You can enter a comma-separated list of VLAN numbers and dash-separated pairs of VLAN numbers.

"

http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12-2SX/configuration/guide/book/snoodhcp.html

 

Hope it helps

-Randy-

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