Verilink 8100A (34-00237) Product Manual - Manual (Page 175)

C o n f i g u r a t i o n 4-101
NAT Configuration
This section describes the steps required to configure Network Address
Translation (NAT).
NAT multiplexes traffic from the internal network and presents it to the
Internet as if it is from a single source that has only one IP address.
The NAT Local Server may be configured with a range of both TCP and
UDP ports, which benefits applications including video conferencing and
multi-user games.
Setting up IP networks without NAT may be complex—each requires an IP
address, subnet mask, a DNS address and a default router.
NAT reduces this complexity by
• Modifying IP addresses and checksum without affecting traffic
• Automatic network configuration when using DHCP
•
Packet-level filtering and routing
•
Traffic logging
NOTICE: If you enter an element of NAT information incorrectly, the network
connection will not function and there may be no indication of what is
wrong.
Refer to the NAT Application Note in Appendix D for further information.
NAT Configuration Menu
Enabling and managing NAT involves several tasks. These are all displayed
and accessed on the NAT Configuration menu, which is displayed by typing
“N”
on the Main menu (Figure 2.2).