Emerson Avocent Universal Management Gateway Guide de l'utilisateur Page 107

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Administration.....101
happens before filtering when traffic is entering the appliance and filtering happens before
translation when traffic is exiting the appliance.
For example, if input traffic passes through an incoming NATrule, which has translated the
destination address, then the only way for the filter rule to match a destination address is to have
the filter rule match the pattern of the translated destination address and not the original destination
address of the traffic. This is because the address was translated before it could be filtered.
Firewall and NATFlow
Number Description
1 Outside.
2 Inside.
3
Incoming NATon an inside interface before output filter on an outside interface.
4
Incoming NATon an outside interface before output filter on an inside interface.
5
Output filter on an inside interface before outgoing NATon the same inside interface.
6
Output filter on an outside interface before outgoing NATon the same outside interface.
Firewall and NATFlow Descriptions
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