NBG-510S User’s Guide
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H A P T E R
13
Access Control
This chapter gives some background information on firewalls and explains how to get started
with the ZyXEL Device’s firewall.
13.1 Access Control Introduction
Access control controls access going from computers on the LAN to the WAN (the Internet).
It also allows you to use QoS to give higher priority to traffic from specific applications (like
voice).
"
Configuring access control configures the firewall’s LAN to WAN settings.
Port forwarding automatically has the firewall allow unencrypted access from the WAN (the
Internet) to your LAN.
• For secure connections from the Internet to the LAN computers, use the secure remote
user portal (see part
on page
• To set which services/protocols can access the ZyXEL Device from the WAN (the
. This allows or disallows remote management of
the ZyXEL Device.
• To allow unencrypted sessions in from the WAN to the LAN, use the NAT port
forwarding screen (see
).
13.2 Quality of Service (QoS)
Quality of Service (QoS) prioritizes traffic by application. This helps guarantee the quality of
high priority traffic like voice. QoS refers to both a network's ability to deliver data with
minimum delay, and the networking methods used to provide bandwidth for real-time
multimedia applications. Here are some recommendations for assigning priorities to different
types of traffic.
Figure 65
Priority Assignment Recommendations
PRIORITY
TYPE OF TRAFFIC TO USE FOR
Highest
Voice since it is especially sensitive to jitter (variations in delay).
High
Video since it consumes high bandwidth and is sensitive to jitter.
Summary of Contents for NBG-510S
Page 2: ......
Page 7: ...Safety Warnings NBG 510S User s Guide 7 This product is recyclable Dispose of it properly ...
Page 8: ...Safety Warnings NBG 510S User s Guide 8 ...
Page 18: ...Table of Contents NBG 510S User s Guide 18 ...
Page 26: ...26 ...
Page 44: ...Chapter 5 Setup Wizard NBG 510S User s Guide 44 Figure 20 Wizard Applying Internet Settings ...
Page 58: ...Chapter 6 Tutorials NBG 510S User s Guide 58 ...
Page 60: ...60 ...
Page 76: ...Chapter 8 WAN NBG 510S User s Guide 76 ...
Page 78: ...Chapter 9 LAN NBG 510S User s Guide 78 ...
Page 88: ...Chapter 11 NAT and Firewall WAN to LAN NBG 510S User s Guide 88 ...
Page 91: ...91 PART III Security Access Control 93 Content Filtering 101 ...
Page 92: ...92 ...
Page 100: ...Chapter 13 Access Control NBG 510S User s Guide 100 ...
Page 103: ...103 PART IV Management UPnP 105 Static Route 113 ...
Page 104: ...104 ...
Page 116: ...Chapter 16 Static Route NBG 510S User s Guide 116 ...
Page 117: ...117 PART V Maintenance System 119 Logs 123 Tools 125 ...
Page 118: ...118 ...
Page 134: ...134 ...
Page 136: ...Chapter 20 Secure Remote Access Title NBG 510S User s Guide 136 ...
Page 140: ...Chapter 21 Secure Remote Access User Info NBG 510S User s Guide 140 ...
Page 150: ...Chapter 23 Manage User Access Permissions NBG 510S User s Guide 150 ...
Page 154: ...Chapter 24 Secure Remote Desktop Control NBG 510S User s Guide 154 ...
Page 162: ...Chapter 25 Secure Remote Access Screens NBG 510S User s Guide 162 ...
Page 164: ...164 ...
Page 170: ...Chapter 26 Troubleshooting NBG 510S User s Guide 170 ...
Page 176: ...Appendix A Product Specifications NBG 510S User s Guide 176 ...
Page 180: ...Appendix B Common Services NBG 510S User s Guide 180 ...
Page 198: ...Appendix D Legal Information NBG 510S User s Guide 198 ...
Page 204: ...Appendix E Customer Support NBG 510S User s Guide 204 ...
Page 209: ...Index NBG 510S User s Guide 209 WPA PSK 189 190 application example 191 ...
Page 210: ...Index NBG 510S User s Guide 210 ...