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P-661 Series Support NotesHNU
1
All contents copyright © 20 ZyXEL Communications Corporation. 10
P-661HNU- Fx
802.11n Wireless ADSL2+ 4-port Security Gateway
Support Notes
Version3.10
Oct 2010
P-661HNU Series Support Notes
2
All contents copyright © 20 ZyXEL Communications Corporation. 10
FAQ..................................................................................................................................... 6
ZLD FAQ ......................................................................................................... 6
1. What is ZLD? 6..........................................................................................
2. What‟s Multilingual Embedded Web Configurator? ......................... 6
3. How do I update the firmware and configuration file? ..................... 6
4. What should I do if I forget the system password? 6..........................
5. How to use the Reset button? ............................................................. 6
6. Is it possible to access a server running behind SUA from the
outside Internet? How can I do it? .......................................................... 7
7. Is there any troubleshooting method on ZLD platform? ................. 7
Product FAQ .................................................................................................. 8
1. How can I manage P-661HNU-Fx? ...................................................... 8
2. What is the default password for Web Configurator? ..................... 8
3. What‟s the difference between „Common User Account‟ and
„Administrator Account‟? ......................................................................... 8
4. Will the device work with my Internet connection? ......................... 8
5. How do I know the P-661HNU-Fx's WAN IP address assigned by
the ISP? 9.......................................................................................................
6. What is the micro filter or splitter used for? ..................................... 9
7. The P-661HNU-Fx supports Bridge and Router mode, what's the
difference between them? ........................................................................ 9
8. How do I know I am using PPPoE? 9.....................................................
9. Why does my provider use PPPoE? ................................................... 9
10. What is NAT? ..................................................................................... 10
11. How NAT works? ............................................................................... 10
12. What is DDNS? .................................................................................. 11
13. When do I need DDNS service? ...................................................... 11
14. What is DDNS wildcard? Does the P-661HNU-Fx support DDNS
wildcard? .................................................................................................. 12
15. What is Traffic Shaping? .................................................................. 12
16. Why do we perform traffic shaping in the P-661HNU-Fx? ........... 12
17. What do the parameters (PCR, SCR, MBS) mean? ....................... 12
18. What do the ATM QoS Types (CBR, UBR, VBR-nRT, VBR-RT)
mean? ....................................................................................................... 13
ADSL FAQ .................................................................................................... 14
1. How does ADSL compare to Cable modems? ................................ 14
2. What is the expected throughput? ................................................... 14
3. What is the microfilter used for? ...................................................... 14
4. How do I know the ADSL line is up? ................................................ 14
5. How does the P-661HNU-Fx work on a noisy ADSL? .................... 14
P-661HNU Series Support Notes
3
All contents copyright © 20 ZyXEL Communications Corporation. 10
6. Does the VC-based multiplexing perform better than the
LLC-based multiplexing? ....................................................................... 15
7. How do I know the details of my ADSL line statistics? ................. 15
8. What are the signaling pins of the ADSL connector? .................... 15
9. What is triple play? ............................................................................. 15
Firewall FAQ ................................................................................................ 17
General ...................................................................................................... 17
1. What is a network firewall? .................................................... 17
2. What makes P-661HNU-Fx secure? ..................................... 17
3. What are the basic types of firewalls? ................................... 17
4. What kind of firewall is the P-661HNU-Fx? ........................... 18
5. Why do you need a firewall when your router has NAT built-in?
..................................................................................................... 18
6. What is Denials of Service (DoS) attack? .............................. 18
7. What is Ping of Death attack? ................................................ 19
8. What is Teardrop attack? ....................................................... 19
9. What is SYN Flood attack? .................................................... 19
10. What is LAND attack? .......................................................... 19
11 What is Brute-force attack? ................................................... 19
12. What is IP Spoofing attack? ................................................. 20
13. What are the default firewall rules in P-661HNU-Fx? ......... 20
Configuration ........................................................................................... 20
1. How do I configure the firewall? ............................................. 20
2. How do I prevent others from configuring my firewall? ......... 20
3. Why can't I configure my P-661HNU-Fx using Web
Configurator/Telnet over WAN? ................................................. 21
4. Why can't I upload the firmware and configuration file using
FTP over WAN? .......................................................................... 22
Wireless FAQ ............................................................................................... 23
General FAQ ............................................................................................. 23
1. What is a Wireless LAN? ..................................................... 23
2. What are the advantages of Wireless LAN? ..................... 23
3. What is the disadvantage of Wireless LAN? .................... 23
4. Where can you find 802.11 wireless networks? ............... 24
5. What is an Access Point? ................................................... 24
6. Is it possible to use wireless products from a variety of
vendors? .................................................................................... 24
7. What is Wi-Fi? ....................................................................... 24
8. What types of devices use the 2.4GHz Band? ................. 24
9. Does the 802.11 interfere with Bluetooth device? ........... 25
10. Can radio signals pass through wall? ............................. 25
11. What are potential factors that may causes interference
among WLAN products? ......................................................... 25
12. What's the difference between a WLAN and a WWAN? 26
Produktspecifikationer
| Varumärke: | ZyXEL |
| Kategori: | Router |
| Modell: | P-661HNU-F1 |
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