I'm assuming that there was a DHCP/BOOTP Relay that was forwarding the
traffic from the other sites to the central DHCP Server. I'd double-check
each of the VPN connections and make sure that the Relay is configured
properly.
One way to check this is to capture the network traffic at both sides of the
link (client's and server's) and ensure that the DHCP Discovers are making
it across.
The reason you'd be able to Renew and not get new addresses is that the
typical Renew is unicast to the DHCP Server (thus is routable) and the
initial request (Discover) is a broadcast message, and thus not routable
(without a DHCP/BOOTP Relay).
-Chris
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Chris Edson
(e-mail address removed)
This posting is provided "AS IS" with
no warranties, and confers no rights.
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Adam said:
This used to work for us, but now it doesn't for some reason. We have one
windows 2000 DHCP server for all offices. The three offices that get their
DHCP info through their lan-to-lan VPN are able to "renew" exisiting IP
address, but they are not able to get "new" ip addresses. All other offices
are functioning correcty. I recently installed w2k sp4 on the DHCP server
(about 3 weeks ago). Any help is appreciated.
