dhcp server on access port

[suthomas1]

Hello All,

Merry X'mas.

On a 4500 switch port , defined as access vlan 10, if the user connects his own dhcp server ( instead of the normal pc that should be connected ), will it cause issues with my existing network. the existing network is all static ip.

In above case, will the dhcp server start looking out and assign dhcp ip's , if a user unknowingly removes his static ip and changes to obtain ip via dhcp option on the lan properties.

Will there be any other problems with this.

Thanks.

[Reza Sharifi]

Hi,

You should put that one DHCP server in a different vlan and not mix it with your other users.  So define vlan 10 for your users and vlan 11 for that one device (DHCP server).  Make sure the IP address of that DHCP server in not the helper address in vlan 10. Another word, since your users are static, you should not have helper address in vlan 10.

HTH