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Tunnelling

Could someone explain to me how tunneling works and why it is necessary
(I understand its when you send one protocol within another, but I kind of need the how and why's of it all)


Does tunneling have anything to do with firewalls

Is there an easy way to set up a turrnel

Could someone give me an example
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Anthony Lucia
Asked:
Anthony Lucia
1 Solution
 
Dave BaldwinFixer of ProblemsCommented:
A 'tunnel' requires a driver on each end.  The driver encodes and decodes the traffic so that it passes thru the regular network and internet as data instead of separate packets.  They can be used to connect two LANs at distant locations as thought they were just one.  The 'local' private IP addresses are encoded into data on the transmitting end and decoded on the receiving end and put on the receiving LAN as local data to a local address.  I believe VPN connections are examples of tunneling.  http://en.wikipedia.org/wiki/Virtual_private_network
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