Network Address Translation (Nat) - Verilink WANsuite 5260 Reference Manual

Network Address Translation (NAT)

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Figure 4.60 TCP Connection Table Screen
The TCP Connection Details screen (Figure 4.61) lists the index number, the
endpoint name, the TCP local port number, and whether or not this entry is
enabled.
Figure 4.61 TCP Connection Details Screen
NAT is a method of connecting multiple computers to the Internet (or any
other IP network) using one IP address. This lets users cost-effectively and
efficiently connect their networks to the Internet.
Whether on a global or local port, NAT provides translation only upon receipt
of a packet, which NAT will translate, not translate, or filter, depending on the
user-specified parameters (further described below). If the decision is made to
"translate," the packet will be modified internally, and eventually sent on to
the IP Gateway to be processed. If the decision is made not to "translate," the
packet will not be modified in any way. If the decision is made to "filter," the
packet will be discarded without any further action required.