ZyXEL Communications P-660HW-TX

P-660HW-Tx v2 Series Support Notes

FAQ................................................................................................................. 6

ZyNOS FAQ.................................................................................................6

1. What is ZyNOS?................................................................................... 6

2. What’s Multilingual Embedded Web Configurator?...............................6

3. How do I access the P-660HW-Tx v2 Command Line Interface (CLI)? 6

4. How do I update the firmware and configuration file?........................... 6

5. How do I upgrade/backup the ZyNOS firmware by using TFTP client

program via LAN?.....................................................................................6

6. How do I restore P-660HW-Tx v2 configurations by using TFTP client

program via LAN?.....................................................................................7

7. What should I do if I forget the system password? ...............................7

8. How to use the Reset button?...............................................................7

9. What is SUA? When should I use SUA? ..............................................8

10. What is the difference between SUA and Full Feature NAT?............. 8

11. Is it possible to access a server running behind SUA from the outside

Internet? If possible, how?........................................................................9

12. When do I need select Full Feature NAT?..........................................9

13. What IP/Port mapping does Multi-NAT support?................................ 9

14. How many network users can the SUA/NAT support? .....................10

15. What are Device filters and Protocol filters?..................................... 10

16. How can I protect against IP spoofing attacks?................................ 11

Product FAQ............................................................................................. 12

1. How can I manage P-660HW-Tx v2? .................................................12

2. What is the default password for Web Configurator?..........................12

3. What’s the difference between ‘Common User Account’ and

‘Administrator Account’?......................................................................... 12

4. How do I know the P-660HW-Tx v2's WAN IP address assigned by the

ISP?........................................................................................................12

5. What is the micro filter or splitter used for?.........................................13

6. The P-660HW-Tx v2 supports Bridge and Router mode, what's the

difference between them? ......................................................................13

7. How do I know I am using PPPoE?.................................................... 13

8. Why does my provider use PPPoE?...................................................13

9. What is DDNS?...................................................................................13

10. When do I need DDNS service?....................................................... 14

11. What is DDNS wildcard? Does the P-660HW-Tx v2 support DDNS

wildcard? ................................................................................................14

12. Can the P-660HW-Tx v2's SUA handle IPSec packets sent by the

IPSec gateway?......................................................................................14

13. How do I setup my P-660HW-Tx v2 for routing IPSec packets over

SUA? ......................................................................................................15

14. What is Traffic Shaping?...................................................................15

15. Why do we perform traffic shaping in the P-660HW-Tx v2? .............15

16. What do the parameters (PCR, SCR, MBS) mean?......................... 16