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DHCP Relay On VLAN

 
ctprosejp
Occasional Contributor

DHCP Relay On VLAN

Have a 3COM 4500G, with 3 VLANS.  1, 55, 60.  Ports are defined as "Hybrid" with Untagged, Tagged, Tagged respectively.  The port the DHCP server is plugged into his defined as "Access", and Untagged on VLAN 1.





I have the server-group defined and pointed to the IP of the DHCP server, and have defined the server-select to the group in each VLAN inteface.





When I connect my IP phone to a port, it somehow goes right to VLAN 60.  The normal procedure for the phone is to get DHCP address on default VLAN, which includes a DHCP option will tells it to tag packets and then re-request DHCP on that VLAN.





In a Procure environment, this behavior would tell me that the port the DHCP server is in, is not NO on all the VLANs tagging.  On the 3COM, I'm kinda lost.