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New Member

dhcp broadcasts

Hi all, is there any way i can stop dhcp broadcasts on my switch coming through one of the ports, I have a site plugged in via a lan extension circuit, I dont want the dhcp propagating via the layer 2 link to my other site? how can i do this ?

6 REPLIES

Re: dhcp broadcasts

Is the switch L3 or L2?

Cisco Employee

Re: dhcp broadcasts

Carl,

Please attach a brief network topology and description.

-amit singh

New Member

Re: dhcp broadcasts

Hi The switch is using layer 2, basically i have 2 sites over a lan extension, i am setting dhcp on the other site, but I dont want the dhcp boradcast coming to my other site

New Member

Re: dhcp broadcasts

I dont think im wrong when im saying that the only way of filtering broadcast's is putting a router/vlan configuration in the middle.

Then u make 2 broadcast domains.

Broadcast Control

Just as switches isolate collision domains for attached hosts and only forward appropriate traffic out a particular port, VLANs provide complete isolation between VLANs. A VLAN is a bridging domain; all broadcast and multicast traffic is contained within the VLAN.

New Member

Re: dhcp broadcasts

Thanks, I knew that already, I just wanted to know if it can be stopped via layer 2?

thanks

New Member

Re: dhcp broadcasts

can anyone help on this ?

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