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New Member

only allow dhcp addresses leased from authorized DHCP server

Hi forum,

Is there a way to allow clients to received addresses from only authorized DHCP server?

I have incidents like some rogue DHCP server is setup in the network.

Kind regards,

paul

3 REPLIES
New Member

Re: only allow dhcp addresses leased from authorized DHCP server

can I do it in this way;

access-list 150 permit udp host 172.16.160.29 any eq bootpc

access-list 150 deny udp any any eq bootpc

access-list 150 permit ip any any

access-list 150 permit udp any any

and then apply it to all my vlan interface as:

ip access-group 150 in

thanks,

Gold

Re: only allow dhcp addresses leased from authorized DHCP server

You can get DHCP snooping in place...

This feature protects your network from rogue DHCP server

check following link

http://www.cisco.com/univercd/cc/td/doc/product/lan/cat4000/12_1_13/config/dhcp.htm

M.

Hope that helps rate if it does

New Member

Re: only allow dhcp addresses leased from authorized DHCP server

Thanks a lot! M, let me try this out. Thanks,

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