I'm trying to setup port forwarding for Serv-U. I'm having problems with the PCs IP address. With the PCs network settings set to automatically get an IP address, IPconfig says it's 192.168.0.100. The Gateway is 192.168.0.1. If I try to set 192.168.0.100 as a 'fixed' address and set the Gateway as 192.168.0.1, I can't access the web. The modem is 192.168.1.1. So I decided to leave it as auto detect and just setup the modem. I finished setting up a Serv-U service, but when I type in 192.168.0.100 as the PC address for the service, I get the error message "Address is not part of the private subunit". Westell 6100 modem D-Link 604 router I'm stuck. I would 'really' appreciate any suggestions/advice. Do yourself a favor BACKUP!

I'm really weak on network stuff. I just found out something. In the Westell modem's configuration screen there is a selection of 'Private LAN'. In there I find settings for the DHCP starting and ending addresses (192.168.1.15 to 192.168.1.47). I tried using 192.168.1.15 in the modem for the serv_U's servicing address and it accepted it. Ipconfig shows 192.168.0.1 as the DHCP and DNS servers. I tried changing the range of the DHCP starting and ending addresses so it would include 192.168.0.100, but it gave the message about them not being part of the subnet. I am really lost. I might have to take a networking course. :-( Do yourself a favor BACKUP!

I might suggest that you reconfig the modem to act as a pass-through device instead of a point of connection. The router would get the public IP if add logon info. Then just map nat to computers. I read it wrong and answer it wrong too. So get off my case you goober.

Or, use the router as a switch. The 6100 is a router with nat?? I read it wrong and answer it wrong too. So get off my case you goober.

Thanks Jefro. I went through the modem configurations and didn't find any 'pass through' option. "The router would get the public IP if add logon info. Then just map nat to computers." I'm afraid I don't know what that means. I'm a novice at this networking stuff. Or, use the router as a switch. The 6100 is a router with nat?? Sorry Jefro, I don't know. I didn't see anything about NAT in the configuration screens. I'll have to try and find the manual to check on that. Do yourself a favor BACKUP!

OK, I finally found a manual online. The modem evidently does have NAT. It has some info on port forwarding, so I'm going to do some studying. Do yourself a favor BACKUP!

The thing that bothers me most is that the modem has a DHCP range of 192.168.1.15 to 192.168.1.47 And my PCs IP address is 192.168.0.100 and the Gateway is 192.168.0.1 Shouldn't they be in the DHCP range? The thing is, it's all working fine, outside of my setting up this port forwarding. I can access the internet and get email OK. I'm gonna call it a day. I'll check back in the morning to see if anyone has any suggestions to get me on the right track. Do yourself a favor BACKUP!