Problem Pointing Vlan Interface to Windows DHCP Server on SG500

[joyi.wong]

Hi,

How do I point a vlan interface to a dhcp server on SG500?  On a 6500, I use "ip helper-address".  Trying to use the same command, however, the switch complains about "% missing mandatory parameter".  Can you please advise me?

Thank you so much!

[devils_advocate]

From memory, I think you need to use the DHCP Relay function on the SG switches:

#ip dhcp relay address x.x.x.x
#ip dhcp relay enable
#int vlan yyy
#ip dhcp relay enable