SMC Networks SMCWBR14T-G manual 4-38, Parameter, Defaults Description

CONFIGURING THE BARRICADE

Parameter	Defaults Description
Stateful Packet	This option allows you to select different
Inspection	application types that are using dynamic port
	numbers. If you wish to use Stateful Packet
	Inspection (SPI) for blocking packets, click on the
	Yes radio button in the “Enable SPI and Anti-DoS
	firewall protection” field and then check the
	inspection type that you need, such as Packet
	Fragmentation, TCP Connection, UDP Session,
	FTP Service and TFTP Service.
	It is called a “stateful” packet inspection because it
	examines the contents of the packet to determine
	the state of the communication; i.e., it ensures that
	the stated destination computer has previously
	requested the current communication. This is a
	way of ensuring that all communications are
	initiated by the recipient computer and are taking
	place only with sources that are known and trusted
	from previous interactions. In addition to being
	more rigorous in their inspection of packets,
	stateful inspection firewalls also close off ports
	until a connection to the specific port is requested.
	When particular types of traffic are checked, only
	the particular type of traffic initiated from the
	internal LAN will be allowed. For example, if the
	user only checks FTP Service in the Stateful Packet
	Inspection section, all incoming traffic will be
	blocked except for FTP connections initiated from
	the local LAN.
When hackers
attempt to enter
your network,
we can alert you
by email
Your E-mail	Enter your email address.
Address
SMTP Server	Enter your SMTP server address (usually the part
Address	of the email address following the “@” sign).
POP3 Server	Enter your POP3 server address (usually the part
Address	of the email address following the “@” sign).
User Name	Enter your email account user name.

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