Re: Multiple routes on LAN now I can't get DHCP addresses
- From: "Robert L. \(MS-MVP\)" <findemail@xxxxxxxxxxxxxxx>
- Date: Tue, 4 Nov 2008 17:17:48 -0600
Posting the routing table here may help.
--
Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on
http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on
http://www.HowToNetworking.com
"ISDPCMAN" <ISDPCMAN@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message news:309C47F2-DB4F-4415-85A9-84538A3A7689@xxxxxxxxxxxxxxxx
We recently added a high speed interent connection to a branch office that
used to get its internet access through a VPN connection to the main office.
Before we were able to use DHCP for this (DHCP was on an old 2000 server. Now
we've moved that to a 2003 server) we create a persistent static route so the
routers would work. Here's the layout:
New Gateway: 10.10.8.5
VPN router: 10.10.8.1
LAN subnet: 10.10.8.x / 24
VPN subnet: 10.10.9.x / 24
I used the Windows ROUTE comand (e.g. Route -p ADD 10.10.9.0 mask
255.255.255.0 10.10.8.1) to add a static route and changed the default
gateway from the .8.2 to .8.5 so they would use the new high speed broadband
firewall as their default outbound gateway.
I changed the addresses on the PC's to be static, added the .8.5 default
gateway and things worked fine. DNS and VPN traffice resolved to the .9.x
subnet, all internet traffic went out the .8.5 firewall and speed was great.
My next step was to move DHCP from the 2000 server to 2003 to use the DHCP
Option 249 (Classless Route) so I can use DHCP again and remove these static
IP settings.
In Windows Server 2003 I added the DHCP option 249 (classless route) to
enable this configuration dynamically.
I went to one of the PC's on the .8.x subnet and changed from static IP to
DHCP. I rebooted and the PC was no longer able to contact the DHCP server. I
got an APIPA address :(
What did I miss here? I need this to work dynamically on this branch office
subnet so as we add PC's they'll work as planned.
.
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