User Documentation

2053260000/05/201548
Planning
a) Source NAT (SNAT)
Static method:
• The IP address of the source is replaced.
• Is used with packets
• The router stores this address translation.
• Is normally used for address translation between two local users only
b) Destination NAT (DNAT)
Dynamic method:
• The IP address of the target is replaced.
• Synonymous for incoming data packets
• For the terminal devices involved these processes are transparent, i.e. they are
not affected by this address translation.
• Is used for mapping addresses of numerous local devices to a few public IP
addresses