Table Of Contents - ZyXEL Communications ADSL2+ 4-port Security Gateway Support Notes

FAQ .................................................................................................................5
ZyNOS FAQ .................................................................................................5
1. What is ZyNOS? ...................................................................................5
2. What's Multilingual Embedded Web Configurator?...............................5
3. How do I access the P-662H-D Command Line Interface (CLI)?..........5
4. How do I update the firmware and configuration file? ...........................5
5. How do I upgrade/backup the ZyNOS firmware by using TFTP client
program via LAN?.....................................................................................5
6. How do I restore P-662H-D configurations by using TFTP client
program via LAN?.....................................................................................6
7. What should I do if I forget the system password? ...............................6
8. How to use the Reset button?...............................................................6
9. What is SUA? When should I use SUA? ..............................................6
10. What is the difference between SUA and Full Feature NAT? .............7
11. Is it possible to access a server running behind SUA from the outside
Internet? How can I do it? .........................................................................7
12. When do I need select Full Feature NAT? ..........................................8
13. What IP/Port mapping does Multi-NAT support? ................................8
14. How many network users can the SUA/NAT support? .......................9
15. What are Device filters and Protocol filters? .......................................9
16. How can I protect against IP spoofing attacks? ..................................9
Product FAQ...............................................................................................11
1. How can I manage P-662H-D? ...........................................................11
2. What is the default password for Web Configurator?..........................11
3. What's the difference between 'Common User Account' and
'Administrator Account'? .........................................................................11
4. How do I know the P-662H-D's WAN IP address assigned by the ISP?
................................................................................................................11
5. What is the micro filter or splitter used for?.........................................11
6. The P-662H-D supports Bridge and Router mode, what's the difference
between them? .......................................................................................12
7. How do I know I am using PPPoE? ....................................................12
8. Why does my provider use PPPoE?...................................................12
9. What is DDNS?...................................................................................12
10. When do I need DDNS service? .......................................................13
11. What is DDNS wildcard? Does the P-662H-D support DDNS wildcard?
................................................................................................................13
12. Can the P-662H-D's SUA handle IPSec packets sent by the IPSec
gateway? ................................................................................................13
13. How do I setup my P-662H-D for routing IPSec packets over SUA? 13
14. What is Traffic Shaping?...................................................................14
15. Why do we perform traffic shaping in the P-662H-D?.......................14
16. What do the parameters (PCR, SCR, MBS) mean? .........................15
All contents copyright © 2006 ZyXEL Communications Corporation.
P-662H-D Series Support Notes
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