ZyXEL P-660RU-T3 v3 User Guide - Page 29

LEDs (Lights), Introducing the ZyXEL Device, P-660RU-Tx v3 User's Guide

Page 29 highlights

Chapter 1 Introducing the ZyXEL Device You can also configure firewall and content filtering on the ZyXEL Device for secure Internet access. By default, the ZyXEL Device prevents DDOS, LAND and Ping of Death attacks whether the firewall is enabled or disabled. You can further block SYN Flood and Port Scanner attacks by turning on the firewall. Use content filtering to block access to specific web sites, with URL's containing keywords that you specify. For example, you could block access to certain web sites for the kids. Use QoS to efficiently manage traffic on your network by giving priority to certain types of traffic and/or to particular computers. For example, you could make sure that the ZyXEL Device gives voice over Internet calls high priority, and/or limit bandwidth devoted to the boss's excessive file downloading. 1.5 LEDs (Lights) The following graphic displays the labels of the LEDs. Figure 2 LEDs on the Top of the Device None of the LEDs are on if the ZyXEL Device is not receiving power. Table 1 LED Descriptions LED COLOR STATUS DESCRIPTION POWER Green On The ZyXEL Device is receiving power and ready for use. Blinking The ZyXEL Device is self-testing. Off The ZyXEL Device is not receiving power. ETHERNET Green On The ZyXEL Device has an Ethernet connection with a device on the Local Area Network (LAN). Blinking The ZyXEL Device is sending/receiving data to /from the LAN. Off The ZyXEL Device does not have an Ethernet connection with the LAN. DSL Green On The DSL line is up. Blinking The ZyXEL Device is initializing the DSL line. Off The DSL line is down. P-660RU-Tx v3 User's Guide 29

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Chapter 1 Introducing the ZyXEL Device
P-660RU-Tx v3 User’s Guide
29
You can also configure firewall and content filtering on the ZyXEL Device for secure Internet
access. By default, the ZyXEL Device prevents DDOS, LAND and Ping of Death attacks
whether the firewall is enabled or disabled. You can further block SYN Flood and Port
Scanner attacks by turning on the firewall.
Use content filtering to block access to specific web sites, with URL’s containing keywords
that you specify. For example, you could block access to certain web sites for the kids.
Use QoS to efficiently manage traffic on your network by giving priority to certain types of
traffic and/or to particular computers. For example, you could make sure that the ZyXEL
Device gives voice over Internet calls high priority, and/or limit bandwidth devoted to the
boss’s excessive file downloading.
1.5
LEDs (Lights)
The following graphic displays the labels of the LEDs.
Figure 2
LEDs on the Top of the Device
None of the LEDs are on if the ZyXEL Device is not receiving power.
Table 1
LED Descriptions
LED
COLOR
STATUS
DESCRIPTION
POWER
Green
On
The ZyXEL Device is receiving power and ready for use.
Blinking
The ZyXEL Device is self-testing.
Off
The ZyXEL Device is not receiving power.
ETHERNET
Green
On
The ZyXEL Device has an Ethernet connection with a device on
the Local Area Network (LAN).
Blinking
The ZyXEL Device is sending/receiving data to /from the LAN.
Off
The ZyXEL Device does not have an Ethernet connection with
the LAN.
DSL
Green
On
The DSL line is up.
Blinking
The ZyXEL Device is initializing the DSL line.
Off
The DSL line is down.