Knowledge Base

Why is DHCP Snooping not working?

Scenario

I've activated DHCP Snooping in the switch configuration page.

And I've also set trusted / untrusted ports, accordingly.

However it still gets IP from an illegitimate DHCP server which is not from port 10.

Why is DHCP snooping not working properly?

Step

To get DHCP Snooping working, you have to select VLAN on the top right side.

Enable the VLAN you'd like to implement DHCP Snooping at.

 

Verification

We can use telnet or console to switch's CLI page, and type "show running-config" to check DHCP Snooping is working on the specific VLAN you assigned.



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Question Profile

LANGUAGE:
ARTICLE ID:017285
TYPE:Troubleshooting
FIRMWARE:4.50
VIEWS:16
VOTES:0
TECHNOLOGY:
MODEL:GS1920-24,GS1920-24HP,GS1920-24v2 (view more model name)

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