Zoom Zoom V3 manual Service Filtering

Once you’ve made your selections, click Save Changes and Write Settings to Flash and Reboot.

Service Filtering

The Service Filtering feature lets you give certain users permission to access the V3 from outside the network—that is, over the Internet. If you enable one of the services listed on this page, the V3’s firewall will open up the appropriate port to allow the service to work.

PING from External Network	Disabled by default. Enable it
	to allow an external user to
	ping your V3. This can be
	useful if you need to
	troubleshoot your unit.
FTP from External Network*	Disabled by default. Enable it
	to allow an external user to ftp
	into your V3. Typically, you
	would do this if you wanted
	someone to check the V3’s
	configuration.
DNS from External Network	Disabled by default. Enable it
	to allow your V3 to accept DNS
	requests from an external
	source.
IKE from External Network	Disabled by default. Enable it
	to allow a VPN (virtual private
	network) connection to your
	network.
RIP from External Network	Disabled by default. Enable it
	to allow your V3 to receive RIP
	(Routing Information Protocol)
	requests from an external
	source. The Technical
	Reference Manual contains
	details about RIP; go to
	www.zoom.com
DHCP from External Network	Disabled by default. Enable it
	to allow your V3 to receive
	DHCP requests from an
	external source.

Chapter 4: Using the V3’s Advanced Firewall 55