Rainbow Electronics W90N740 - Manual (Page 118)

W90N740
- 114 -
7.6 Network Address Translation Accelerator (NATA)
The Network Address Translation Accelerator (NATA) provides hardware acceleration function to
enhance the IP address and port number translation. An inside (local/LAN) IP address is mapped to
an outside (global/WAN) IP address, meaning that an inside IP address is replaced by the appropriate
outside IP address, and vice versa. When the network is connected and SW Users can use NATA on
W90N740 to speed up fixed (static) address translation and reduce software loading on processing
layer-3 IP replacement. The NATA has 64 entries for users to initial replacement IP content and
cooperate the 2 EMC ports to do NAT.
The Features of the NATA：
• Hardware acceleration on IP address / port number look up and replacement for network address
• Translation, including MAC address translation
• Provide 64 entries of translation table
• Support TCP / UDP packets