Port Triggering - Draytek Vigor2850 Series User Manual

Vdsl2 security firewall
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WAN Interface
WAN IP
Private IP
Subnet Mask
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Port Triggering is a variation of open ports function; the difference is that the port triggering
has the dynamic characteristics. It is more secure comparing to open ports.
In Open Ports setting, once we setup the ports be opened, all traffic can go through these open
ports into LAN device; with Port Triggering function, the ports will be opened only when
specific application triggers the specific ports, and then the needed ports will be opened
automatically.
Available settings are explained as follows:
Item
Comment
Choose the WAN interface for such address mapping
profile.
Select an IP address (the selections provided here are set in
IP Alias List of Network >>WAN interface). 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 Apply, a message
will appear to inform you.
Assign an IP address (e.g., 192.168.1.10) or a subnet to be
compared with the Public IP address for incoming packets.
Select a value of subnet mask for private IP address.
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Description
Display the text which memorizes the application of this
rule.
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Vigor2850 Series User's Guide

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