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Connecting to our foreign network help?

Posted on 2004-08-16
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Last Modified: 2010-04-11
Hi

We are based in the uk and have two offices here and an office in mallorca. We are looking to set up a network so we can see the computers of workers in other offices and share files/ folders etc. What steps would you take to create the network (ie type of connection required, type of network, security issues etc)?

Our machines are mixed win98, 2k and xp. We have win2k server in uk sited and nt4 in mallorca. We are willing to upgrade servers if necessary but not yet able to upgrade the workstations.


Any help would be greatly appreciated
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Question by:cyjazzman
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by:Yan_west
ID: 11809744
I would make a permanent VPN Tunnel betweem the 2 offices, using a Cisco PIX firewall. this would bring both of your network togetter over the internet, and this, very securely.

Depending on the size of your 2 networks, I would recomment different model.<<

Here is the complete list of cisco pix firewall models.

http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/
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by:Yan_west
ID: 11809754

Network A (pix)----(Secure Tunnel) INTERNET (Secure Tunnel)----(pix) NetworkB
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Author Comment

by:cyjazzman
ID: 11809825
Hi and thanks for quick reply

We actually have three networks

two uk offices have 120 and 180 workstations respectively and mallorca office has 50.

Do you configure the vpn using the firewall or on the servers we have?

Would this enable us to control the internet access for the overseas office from here and also be able to make configuration changes to their serv
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by:Yan_west
ID: 11809826
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by:Yan_west
ID: 11809865
You could use as many pix as you want, to create as many tunnels as you want (depending on the model)..

You could configure remote servers via Remote access, or if you integrate AD tools for all domain in a centralized location.

I would setup 2 pix 515 at your 2 office location (120-180 PCS) and a Pix 506e at your 50 computer office.

The tunnel is exclusively configured via the firewalls (pix)
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by:Yan_west
ID: 11809924
This is a very complex solution in any case, and if you have no one that is specialized in this at your office, I would contact a solution provider to analyze your network. Even if we give you a complete solution here, only use it as a guideline.
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by:Yan_west
ID: 11809940
Network 1    Tunnel
                 ------------
                   Internet    ----Network 3                                                      
                 ------------
                  Tunnel
Network 2
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Author Comment

by:cyjazzman
ID: 11810157
I only have experience of LAN's so bear with me while I ask some questions.

After reading the set up guides for the pix firewalls it doesn't seem too complex.

We already have internal LAN all configured correctly at each location and have 3u space in our racks. Each office is connected to the internet via a gateway with a static public ip address.

It really seems like the pix are the only other hardware we need am i right?

I assume that once the vpn is established then workstations from other offices will be visible on the network?

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Author Comment

by:cyjazzman
ID: 11810177
Also we are having voip solution installed in our uk offices. With a vpn would we be able toextend the voip coverage to the foreign network? it would save a fortune in call charges!!!
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Expert Comment

by:Yan_west
ID: 11810308
The pix is a complete Firewall solution, probably that it will replace your current firewall / Internet gateway. You can't go wrong with cisco. Yes it is the only piece of hardware you need.

Check this out:

http://www.experts-exchange.com/Hardware/Routers/Q_21077361.html

Also, check this list of article:

http://labmice.techtarget.com/networking/vpn.htm
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Author Comment

by:cyjazzman
ID: 11810998
Ok, configuring the pix shouldn't be too hardr for our inhouse guys.

Then all i need to do to authenticate remote computers on our domain is give them the ip of our dns server in their network configuration?

They should then appear as any other local machine on our domain right?
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Yan_west earned 500 total points
ID: 11811133
You will have access to the computers at the other end, you will be able to Map network drive from the command line, or via logging script, but you may not see them in the network Neighborhood tho.. I know I can't but my domain is fully functionnal. everything will be working.

If you right click on network place and click search for computer, and type in the address, it will show tho..
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Author Comment

by:cyjazzman
ID: 11811151
Excellent!!

Thanks for all of your help, you are an absolute star.
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