Chapter 8 Network Address Translation (NAT)
P-870HN-51D User’s Guide
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8.5 The DMZ Host Screen
In addition to the servers for specified services, NAT supports a default server IP
address. A default server receives packets from ports that are not specified in the
NAT Port Forwarding Setup screen.
Figure 67 NAT > DMZ Host
The following table describes the fields in this screen.
Open Start
Port
The open port is a port (or a range of ports) that a server on the WAN uses
when it sends out a particular service. The P-870HN-51D forwards the
traffic with this port (or range of ports) to the client computer on the LAN
that requested the service.
Type a port number or the starting port number in a range of port numbers.
Open End
Port
Type a port number or the ending port number in a range of port numbers.
Open
Protocol
Select the transport layer protocol from TCP, UDP, or TCP/UDP.
Back Click Back to return to the previous screen.
Apply Click Apply to save your changes to the P-870HN-51D.
Cancel Click Cancel to begin configuring this screen afresh.
Table 40 NAT > Port Triggering > Add
LABEL DESCRIPTION
Table 41 NAT > DMZ Host
LABEL DESCRIPTION
Default Server Enter the IP address of the default server which receives packets from
ports that are not specified in the NAT Port Forwarding screen.
Note: If you do not assign a Default Server, the P-870HN-51D
discards all packets received for ports that are not specified
in the NAT Port Forwarding screen.
Apply Click Apply to save your changes back to the P-870HN-51D.
