28
04
2009
NAT Unplugged
Posted by Divin John in Cisco *STUFF*, NAT,PAT, Routing, tags: Inside Global, Inside Local, inside Source, NAT, NAT Overload, NAT Pool, Outside Global, Outside Local, Outside Source, PAT, Port Address Translation, sh ip nat translationsIn its simplest configuration, the Network Address Translator (NAT) operates on a router connecting two networks together; one of these networks (designated as inside) is addressed with either private or obsolete addresses that need to be converted into legal addresses before packets are forwarded onto the other network (designated as outside). The translation operates in conjunction with routing, so that NAT can simply be enabled on a customer-side Internet access router when translation is desired.
TERMINOLOGY
Figure 1
NAT Concepts
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