Scientific Atlanta DPR300 Series manual Firewall

How Do I Configure the Cable Modem Gateway?

Field Name	Description
Port Forwarding	Use this page 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/UPD 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.
Port Triggers	Use this page to configure TCP/UPD 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.
DMZ Host	Use this page to configure an IP address that is
(Demilitarized Zone)	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.

Firewall

The following table provides a description of the pages available from within the Firewall section of the Setup page.

Field Name	Description
Web Filters	Use this page to configure Web page filtering and
	firewall protection. This page allows you to
	block/allow Internet access based on keywords
	and/or domain names
Event Logging	Use this page to access the firewall event log and
	to enter your e-mail address in order to receive e-
	mail alerts related to firewall attacks by hackers

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