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Old 05-30-2011, 05:02 AM   #1
qrange
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Registered: Jul 2006
Location: Belgrade, Yugoslavia
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about firewall and networking in general


I cannot understand, why do we have to define both Source/Destination AND Direction when building firewall.
Isn't direction= source->destination?

what would happen if source and destination were swapped?
 
Old 05-30-2011, 06:39 AM   #2
tg3793
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Quote:
Originally Posted by qrange View Post
I cannot understand, why do we have to define both Source/Destination AND Direction when building firewall.
Isn't direction= source->destination?

what would happen if source and destination were swapped?
Sometimes a visual example will help. Try this one on for size :-)
 
Old 05-30-2011, 06:45 AM   #3
tg3793
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Symantec also has some decent information on the subject.
 
Old 05-30-2011, 07:39 AM   #4
qrange
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thanks.
would 'source' and 'destination' have something to do with who initializes connection (by sending the first packet) and who sends ack?
 
  


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