Vigor3200 Series User’s Guide
148
Item Description
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Protocol
Specify the transport layer protocol. It could be TCP, UDP, or
ALL for selection.
WAN Interface
Choose the WAN interface for such address mapping profile.
WAN IP
Select an IP address. Local host can use this IP to connect to
Internet.
If you want to choose any one of the Public IP settings, you
must specify some IP addresses in the IP Alias List of the
Static/DHCP Configuration page first. If you did not type in
any IP address in the IP Alias List, the Public IP setting will be
empty in this field. When you click OK, a message will appear
to inform you.
Private IP
Assign an IP address (e.g., 192.168.1.10) or a subnet to be
compared with the Public IP address for incoming packets.
Subnet Mask
Select a value of subnet mask for private IP address.
After finishing all the settings here, please click OK to save the configuration.
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Port Triggering is a variation of open ports function.
The key difference between "open port" and "port triggering" is:
z Once the OK button is clicked and the configuration has taken effect, "open port"
keeps the ports opened forever.
z Once the OK button is clicked and the configuration has taken effect, "port triggering"
will only attempt to open the ports once the triggering conditions are met.
z The duration that these ports are opened depends on the type of protocol used. The
"default" durations are shown below and these duration values can be modified via
telnet commands.
TCP: 86400 sec.
UDP: 180 sec.
IGMP: 10 sec.
TCP WWW: 60 sec.
TCP SYN: 60 sec.
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