Avocent Cyclades-PR4000 installation manual NAT 122

Cyclades-PR4000

STEP FOUR

If static translations are to be performed, as described in the example, the parameters in the Static Translation Menu must be set. A brief explanation of each parameter is given in the table.

Static Translation Menu CONFIG =>SECURITY =>NAT =>STATIC TRANSLATION => ADD ENTRY

Parameter	Description
Global IP Address	One of the addresses assigned by the Internet access provider and included in one of
	the NAT global address ranges.
Protocol	TCP, UDP, ICMP, or any protocol.
Global Port	The port to be translated on the WAN side. When a request comes in on port 80 for IP
	200.240.230.225 in the example, it is sent to the server with IP 192.168.0.31, port 80
Local IP Address	The IP address of the server (on the LAN, in the example) which is translated to an
	Internet IP address.
Local Port	The port to be translated on the LAN side. When a request comes in on port 80 for IP
	200.240.230.225 in the example, it is sent to the server with IP 192.168.0.31, port 80.

STEP FIVE

After the NAT menu parameters have been set, the NAT property in the Network Protocol Menu of each interface must be configured. In the example, the IP Address of the Ethernet interface is not assigned dynamically. The parameter CONFIG =>INTERFACE =>ETHERNET =>NETWORK PROTOCOL =>IP=>NAT - DYNAMIC ADDRESS ASSIGNMENT should be set to Inactive. The IP address of the interface connecting the router to the Internet is also assigned by the super user in the example, rather than dynamically. The parameter CONFIG =>INTERFACE =>SWAN =>NETWORK PROTOCOL =>IP=>NAT - DYNAMIC ADDRESS ASSIGNMENT would also be set to Inactive.

After NAT has been configured and is running, the menu option INFO =>SHOW STATISTICS =>NAT will show Network Address Translation Statistics.

Chapter 13 - NAT 122