Security / VPN

The use of internet to connect computer system in different locations has given a great boost to the development of Information Technologies both for the simplicity of use and the low costs. On the other side there are at least to main problems: the low or alltogether missing guarantee of service (with some exceptions) and security. Obviously secure connections can also be needed insided a local network, for example to divide the traffic of different departments of the same company.

With a "Tunnel" is possible to connect two networks through other networks in such a way as if they were directly connected. Usually tunnel are transparent, which means that if someone would intercept the traffic, she could read all what is passing through. But it is also possible to realize "Encrypted Tunnels", where all the traffic passing through the tunnel is encrypted. The current standard for this is IPSEC and these tunnels are usually called VPN IPSEC. It is possible to realize VPN IPSEC between

• two gateways: in this case are securely connected through the encrypted tunnel the two private networks which are behind the two gateways
   
• two host: in this case the two hosts are securely connected through an untrustable network
   
• one host and one gateway: this is the case of the "road-warrior", or portable computer o tele-worker which connect from outside to the network of their company, usually through a internet dial-up
   

Our offer includes the design and configuration of VPN realized with (and between) the platforms:

• CISCO router with IOS-firewall image
   
• CISCO PIX/ASA firewall
   
• Checkpoint
   
• WatchGuard
   
• Linux (FreeSWan, OpenSWan etc.)
   
• and platforms compatible with the previous ones
   

On Linux and other platforms is possible to realize other kind of encrypted tunnels based on SSL/TLS.

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Info: posta@ucci.it - Page last modified 11/9/2006