Q: Hi all,
A friend of mine runs a home business employed part-time employees. He has eight computers dedicated to running a business W98, W2K on, WinXP on a peer-peer network. All machines on the network running fine.
Currently only one is connected to the Internet via a dial-up connection is not shared, everyone wanted to surf the web to be on this workstation. He plans to ADSL very soon.
Ultimately he wants to share this with all ADSL line network 8 machines.
He have 3 kids computer that he would like to be able to surf the web via the ADSL connection. However, he does not want the boy to open the network / inter-fear with the business network.
How I can achieve this? Putting the kids network in a different subnet? That means I would have 2 routers in the network? If that is the way to configure the routers? I think I have a general idea, but just wanted some confirmation.
Thanks
Best Answer: I would setup a hardware VPN from office B to office A. There are a bunch of products out there that will do this (check Cisco's Pix Firewall) but they will cost money and you may have to do a lot of research on configuration. This would be best because it would be transparent to your users.
If you trying to do this for as little money as possible….
Look into a DSL router with VPN connection. http://www.netgear.com/Products/VPNandSSL/WiredVPNFirewallRouters/FVS318.aspx Then you would have to have people from office B connect to the VPN and they could connect to the share.
http://support.real-time.com/windows/vpn/windows_xp_vpn.html#connect – this will show you how to setup the VPN on the computers in office B.
If you do this then….
a) I think you would need to change the IP address schema so they are not on the same subnets. (if office A is 192.168.1.x then change office B to 192.168.2.x)
b)I wouldn't trust Windows for VPN access
c)I would go with the Pix firewall (actually thats what we use in my office)
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Re:Hi
guy: Thanks for the info. Now I'll go answer my friend with confidence 
guy: Unfortunately I don't have much if any knowledge in configuring a Cisco router. I'll take a look at them anyway for self education :light:. Still thanks for teaching me something new.
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Re:Cisco router ACLs. You can get a 2514 for a little over $100 on ebay.
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Re:guy: So you're saying that not all routers can support a private IP on its WAN port? A router with 2 inside interface??? Meaning routers that can support 2+ different subnet / class of address for its internal LAN ports? Ok so I should point the second 'internal' router to the first 'external' router as a gateway? I should connect the WAN port of the 'internal' router to one of the LAN port on the 'external' router?
Yes, some routers do not accept a 192. or a 10. for a wan addy.
Yes, hook the wan port of the second router up as a client to the first. make sure they are set to different gateway settings.
I have done this with the microsoft wireless router successfully.
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Re:guy: So you're saying that not all routers can support a private IP on its WAN port? A router with 2 inside interface??? Meaning routers that can support 2+ different subnet / class of address for its internal LAN ports? Ok so I should point the second 'internal' router to the first 'external' router as a gateway? I should connect the WAN port of the 'internal' router to one of the LAN port on the 'external' router?
guy: By ACLs+switch you are referring to NTFS's ACLs? Well I've thought of that one too but it's a bit hard when there are W98 machines involved. Or are you referring to something that I don't know?! 
Thanks for the input. Will start to look up some routers now. Since his ADSL connection includes a modem + router device I will just need to get him a second router.
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Re:one router, ACLs or with switches
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Re:two routers will work, as long as the second router can work with a private IP as its WAN address.
A router two inside interfaces will also do it, allowing two distinct LAN segments.
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