Netgear FVS114 User Manual download pdf (Page 129)

Reference Manual for the ProSafe VPN Firewall FVS114

Advanced Configuration 8-3

202-10098-01, April 2005

To assign a computer or server to be a Default DMZ server:

1. Click Default DMZ Server.

2. Type the IP address for that server.

3. Click Apply.

Respond to Ping on Internet WAN Port

If you want the firewall to respond to a ping from the Internet, click the Respond to Ping on

Internet WAN Port check box. This should only be used as a diagnostic tool, since it allows your

firewall to be discovered. Don't check this box unless you have a specific reason to do so.

How to Configure Dynamic DNS

If your network has a permanently assigned IP address, you can register a domain name and have

that name linked with your IP address by public Domain Name Servers (DNS). However, if your

Internet account uses a dynamically assigned IP address, you will not know in advance what your

IP address will be, and the address can change frequently. In this case, you can use a commercial

dynamic DNS service, which will allow you to register your domain to their IP address, and will

forward traffic directed to your domain to your frequently-changing IP address.

Note: For security, NETGEAR strongly recommends that you avoid using the Default

DMZ Server feature. When a computer is designated as the Default DMZ Server, it loses

much of the protection of the firewall, and is exposed to many exploits from the Internet.

If compromised, the computer can be used to attack your network.

Note: In this application, the use of the term “DMZ” has become common, although it is

a misnomer. In traditional firewalls, a DMZ is actually a separate physical network port.

A true DMZ port is for connecting servers that require greater access from the outside,

and will therefore be provided with a different level of security by the firewall. A better

term for our application is Exposed Host.

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Netgear FVS114 User Manual Page 129