IP Sharing???

[Mr. NoOne]

Hi,
At work we have 10 separate IP's. I gave 1 IP to the billing area so they can send/receive email in one of their computers.
Now they are asking me if they can send/receive email in their other 4 computers.
All their computers are connected to a hub and that hub to my router. Only one of their computers has a real IP, the other ones are just IP's that I came up with.

Is there any way that all 5 computers use their own IP's but go out through the IP of the computer that has the only real IP?

I pretty much used up all remaining 9 "real" IP's. So they have to stick to having only one 'real' IP.

The one that has the real IP has win2000 and the other ones have win98.


Thanks.....

[meese]

You can add another nic to that pc and basically turn it into a router/gateway. One nic would have a private ip that you assign, the other would get the public ip. What type of connection do you have to the internet? Another choice, if its DSL or cable, you could get a broadband router.

[Mr. NoOne]

I have DSL.

The computer has an extra NIC already, but without the drivers, so it's not working......How is that option of turnning it into a router/gateway?

Would that conflict with my real DSL router/gateway?

[meese]

I'm a little confused. The 10 ip's are they public ip's that you are supplied from your ISP?

I have cable where I work. I have about 25 pc's connected through a switch to my Linksys router, the router connects to my cable modem. I have one IP from my ISP. All 25 pc's have their own private ip assigned by my DHCP server. All can send/receive e-mail. This setup is simple.

But getting back to your question. Yes you would make the W2K box a router (not a gateway). How many subnets are on your lan? How do you assign ip's, static or dynamic? Is this a domain or workgroup? I need more details before I can give a better answer.

[Mr. NoOne]

Yeah, my provider gave me 10 static (public) IP's.

Your solution sounds simpler....how do I set up the DHCP to use private IP's?
I think that's what I'm looking for....

All my IP's are static, it's a windows workgroup.
How many subnets???? I don't know.....my subnet mask is 255.255.255.240

[meese]

What type of router do you have? Does it support DHCP (can it be configured as a DHCP server)?

When I had my network setup in a peer-peer work group, I set all my pc's to obtain ip address and DNS ip's automatically. The Linksys router would assign all my pc's an ip. The DHCP server in the linksys defaults to assigning the first pc 192.168.1.100 and each one thereafter the ip increments by 1. Linksys uses the 192.168.1.x subnet with a subnet mask of 255.255.255.0. So my router has two IP's, one private ip (192.168.1.1) and one WAN ip (supplied by your isp). With this setup you only need one public ip. (How much do you get charged for 10 ip's?)

Now if you want to keep all static ip's on your pc's thats fine. Just disable the DHCP server in the router. Then in the TCP/IP properties of each client you need to set the default gateway to the ip address of your router, and the DNS server ip's to the ones given to you by your ISP.

Anyway let me know the router type and the number of pc's you have in your workgroup?

[Ruler2112]

I have set up this exact same thing in my office under RedHat 9 on an old PC. It's free, stable, and has everything built in that you need to do it.

Basically, have like you described- two NICs, one hooked into your network at large and another going to a hub/switch. Set up IP Masquerading (PM me if you want details and I'll post how to do it), set each PC on the local/small network an IP address, and you're good to go. Nobody on the other side of the routing PC knows the traffic isn't coming from the routing PC itself.

[Mr. NoOne]

You know what, since I'm kinda of busy at the moment to take time and setup all those things, I think I'm just gonna give them one more IP and tell them they will have to do with that....

I'll keep those suggestions on the back of my mind for later anyway...

Thanks for the advise...