Cisco DPQ2425 User Manual page 34

How Do I Configure My Wireless Residential Gateway with Digital Voice Adapter?
Field Name
Port Forwarding
Port Triggers
DMZ Host
(Demilitarized Zone)
VPN Termination
34
Description
Use this link to configure port forwarding for
local IP addresses. Port forwarding allows you to
run a server on the local area network (LAN) by
specifying the mapping of TCP/UDP ports to
local PCs or to the IP address of other devices.
This is a static setting that holds the ports open at
all times
Use this link to configure TCP/UDP port triggers.
Port triggering is similar to port forwarding, but is
a dynamic function. In other words, the ports are
not held open, and the ports close if no outgoing
data is detected on the selected ports for a period
of 10 minutes
Use this link to configure an IP address that is
visible to the wide area network (WAN). DMZ
hosting is commonly referred to as "exposed
host," and allows you to specify the "default"
recipient of WAN traffic that Network Address
Translation (NAT) is unable to translate to a
known local PC
A DMZ is used by a company that wants to host
its own Internet services without sacrificing
unauthorized access to its private network. DMZ
allows one IP address to be unprotected while
others remain protected. The DMZ is located
between the Internet and an internal network's
line of defense that is a combination of firewalls
and bastion hosts
Typically, the DMZ contains devices accessible to
Internet traffic, such as web (HTTP) servers, FTP
servers, SMTP (e-mail) servers, and domain name
system (DNS) servers
Use this link to create, configure, and control
Virtual Private Network (VPN) protocols and
manage Internet Protocol Security (IPsec) VPN
tunnels.
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