Re: DHCP Relay and 2003 DHCP Server

Thanks for the reply. I looked over my Vlan setup and I had the port
that the dhcp server was on tagged as a member of the Vlan that was
recieving incorrect addresses. Well they were correct as the dhcp
server was seeing the initial broadcast and replying with an address in
its subnet. Once I removed that port as a tagged member then
everything worked. It was just dumb luck that I was testing the dhcp
server in that Vlan, if I had chosen another it would have worked, and
in fact that's what I did.

It's good to know that this also works with two dhcp servers. Are you
using one as a replica? If so then do you have any problems with them
handing out different addresses or keeping track of which addresses the
other hands out?

Andy

Kevin Stephenson wrote:
> I am doing the exact same thing with a 3com 4924 switch using udp helper and
> it is working fine. I have 7 VLAN's each with around 150 computers. There
> are two DHCP servers in once VLAN and the UDP Helper settings list the two
> DHCP server's IP address. I am not using superscopes but 7 individual
> scopes. If you want me to list more details of my configuration I can.
>
> Kevin
>
> "AndrewZirkel@xxxxxxxxx" wrote:
>
> > I'm trying to consolidate my DHCP pools onto one 2003 server. Each
> > network is a Vlan. I setup a relay agent (called udp helper on the
> > 3com switch) on our core. I've verified via ethereal that the server
> > receives the request from the relay with the correct relay agent
> > address, and that the DHCP server sends an ack with a valid address for
> > that network back to the relay agent. I've verified that the client
> > receives that ack via ethereal. Yet the client doesn't act like it
> > receives the ack and never configures itself. When I re-enable the
> > DHCP server that is physically in the vlan that I'm hoping to
> > replace, then all is well. Any input or direction would be
> > appreciated.
> >
> > Andy
> >
> >

.

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