Motorola Netopia 3342N User Manual
Page 358
Administrator’s Handbook
358
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 inter face.
Technical details are discussed in
SSL Certificate Support
On selected models, you can also install a Secure Sockets Layer (SSL V3.0) cer tificate from a trusted Cer-
tification Authority (CA) for authentication purposes. If this feature is available on your Gateway, an addi-
tional link will appear in the Install page.
Netopia Embedded Software Version 7.7.4 uses SSL cer tificates for TR-069 suppor t.
“Install Cer tificate” on page 190
.
VLANs
Motorola Netopia®'s VGx technology allows a single Motorola Netopia® VGx-enabled broadband gate-
way to act as separate vir tual gateways, treating each individual ser vice as a single ser vice "channel." The
VGx-enabled gateway applies specific policies, routing, and prioritization parameters to each ser vice chan-
nel, ensuring deliver y of that ser vice to the appropriate peripheral device with the requisite level of QoS and
correct feature sets — making it ideal for deliver y of triple play voice, video, and data ser vices.
VGx was developed to ensure that subscribers receive the quality of voice, video, and data ser vices they
expect — to prevent a large data download from causing jitter y video or poor voice quality. VGx achieves
this goal by providing superior ser vice segmentation and QoS features obtained by mapping multiple local
vir tual local area networks (
VLANs) to one or more specific permanent virtual circuits (PVCs) for DSL, or
wide area network VLANs for a fiber network.
Traffic prioritization is determined through the Institute of Electrical Engineering (IEEE) standard 802.1p,
which specifies
QoS algorithms to prioritize traffic based on protocol and source. This insures that each
ser vice receives the QoS treatment it requires; for example,
•
video is free from latency,
•
VoIP ser vice is prioritized to insure aural quality, and
•
data is securely and efficiently routed.