Opening the firewall for selected pc's (dmz) – Siemens SE505 User Manual

Page 84

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83

Configuration with Advanced Setup

Gigaset SE505 dsl/cable / English / A31008-E505-B100-1-7619 / configure_router.fm / 16.07.2003

Opening the firewall for selected PC's (DMZ)

PC's inside the LAN cannot be accessed from the Internet by default. The router protects

the LAN by its

Firewall

. Some applications do not work properly behind a firewall

because they require unrestricted data flow in both directions. In this case you can

define a so-called demilitarised zone (

DMZ

) for a PC running such applications. When

you create a DMZ, all requests for a service that come from the Internet will be

forwarded to that PC unless the service has already been forwarded to another PC by

Port Forwarding

(see page 88).

To create a DMZ for a PC, select DMZ in the Virtual server menu.

!

Please bear in mind that the demilitarised PC is no longer protected

against unauthorised access from the Internet and as such could be a

security risk for your network. You should use this option only in

emergency situations.

i

You will find an example of how to create a DMZ in "Practical Tips and

Configuration Examples" on the CD supplied.

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