RRAS + DHCP + WIFI (Wireless) + DNS

[Guest]

Hello,

I am trying a configuration where I have...

Ethernet NIC with a static IP:
IP: 128.61.67.xxx
Subnet: 255.255.255.0
Gateway: 128.61.67.1
DNS: (same as IP above, DNS requests get redirected to itself)

Wireless 802.11a/b/g WIFI Card with static IP:
IP: 192.168.0.1
Subnet: 255.255.254.0
Gateway: 192.168.0.1
DNS: 192.168.0.1

I have Windows Server 2003 Enterprise and I am trying to use RRAS to share
the wired ethernet connection using NAT over a private AD-HOC network using
the Wireless LAN adapter and DHCP to assign addresses.

DHCP is currently installed and bound to the wireless card:
Scope Range: 192.168.0.1 - 192.168.1.254
Subnet: 255.255.254.0
Default Gateway: 192.168.0.1
DNS: 192.168.0.1
WINS: 192.168.0.1

DHCP scope is active and the DHCP server has been authorized in Active
Directory on the same box.

I also have RRAS set up with the following configuration:
Wizard used and network addess translation selected
IP Routing is enabled
IP Address Assignment is set to DHCP (not static address)
Basic Firewall is disabled
IP Router Manager Enabled for all interfaces
No filters being used

I had also tried the DHCP Relay agent with no success.
I have also tried removing all of the network devices and reinstalling them.

DNS is also installed and all of the adaptors are specified to use it.

This configuration worked for a short period. Somehow I messed something up
horribly and I can't figure out what is wrong.

 

[Bill Grant]

The only obvious problem is the gateway setting on the private NIC of the
RRAS server. This should be blank. The only default route of your server
should be out to the Internet via the public NIC. A gateway setting on the
private NIC really upsets RRAS.

 

[Guest]

Still no luck. Is it ok to define a gateway setting in DHCP for the private
LAN?

 

[Guest]

I have removed it in DHCP 003 Router config too with still no luck. Anything
else I should try? Thanks a bunch

 

[Bill Grant]

We don't seem to be talking about the same thing here. We are not talking
about the default gateway settings of the clients. We are talking about the
default gateway setting on the wireless NIC of the server. This should be
blank. You can clear it from Network Connections or from the RRAS console.

The setup should look like this.

Internet
|
router
128.61.67.1
|
wired clients
128.61.67.x dg 128.61.67.1
|
128.61.67.n dg 128..61.67.1
RRAS
192.168.0.1 dg blank
|
wireless clients
192.168.0.x dg 192.168.0.1

If you have NAT enabled on the RRAS server, all clients in the wireless
LAN should be able to share the server's Internet access.

If you are running Active Directory, DNS is probably screwing things up.
Set all machines to use the AD DNS server, and set that server to forward to
a public DNS service.

 

[Guest]

Yep. That is what I was talking about, the private NIC (WLAN adapter). Still
no success.

Thanks.

 

[Guest]

Sorry for the confusion. Everything is set up exactly as you last described
and still no luck. Anything else with DNS/AD/DHCP that could be messing
things up?

 

[Bill Grant]

If the set up looks OK, you just have to start using standard networking
debugging to find where it fails.

 

[Guest]

Thank again. Are there any tools in Windows (or on the Windows Server cd)
that could help me in my endeavors?