Specifications

23
Security
Dynamic DNS
Dynamic DNS support allows you to use the free services of www.dyndns.org. Dynamic
DNS automatically directs any public Internet request for your computer's name to your cur-
rent dynamically-assigned IP address. This allows you to get to the IP address assigned to
your Gateway, even though your actual IP address may change as a result of a PPPoE con-
nection to the Internet. See “Dynamic DNS Settings” on page 210.
Stateful Inspection Firewall
Stateful inspection is a security feature that prevents unsolicited inbound access when
NAT is disabled. You can configure UDP and TCP “no-activity” periods that will also apply to
NAT time-outs if stateful inspection is enabled on the interface. Technical details are dis-
cussed in “Stateful Inspection” on page 262.