DHCP assignment to vlan with no ip address.

[dennis.engel]

Hi,

I am trying to figure out a way to assign DHCP addresses to a vlan without an ip address using IP helper.

The goal of this is to only allow bootpc packets from vlan X to reach the internal DHCP server while all other traffic is treated normally.

Vlan X has a port on the core with switchport access vlan X on it and is routed further down the line.

Vlan X has to stay at layer 2 on my network.

Thank you.

[jonathanaxford]

Hi,

If the VLAN has to stay at Layer 2 across your network, the simplest solution would be to place the DHCP server in that VLAN - that way all DHCP broadcast requests would be picked up and serviced without the need for it to cross any L3 boundaries?

Is it the case that the DHCP server must reside in a separate VLAN?

Jonathan

[IAN WHITMORE]

Or at least have another interface in that VLAN if it must also reside in another.