Network address translation (nat), Network address translation (nat) -66 – Verilink WANsuite 7205 (34-00317.B) Product Manual User Manual
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Figure 4.59
TCP Connection Table Screen
The TCP Details screen (Figure 4.60) lists the index number, the endpoint
name, the TCP local port number, and whether or not this entry is enabled.
Figure 4.60
TCP Connection Details Screen
Network Address Translation (NAT)
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.