User`s manual

P-660 Series Support Notes

ZYNOS FAQ.......................................................................................................................................6

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

2. How do I access the Prestige SMT menu?..................................................................................6

3. What is the default console port baud rate? Moreover, how do I change it? .............................6

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

5. How do I upload the ZyNOS firmware code via console? ..........................................................6

6. How do I upgrade/backup the ZyNOS firmware by using TFTP client program via LAN?........7

7. How do I upload ROMFILE via console port?...........................................................................7

8. How do I restore SMT configurations by using TFTP client program via LAN? .......................7

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

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

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

12. What is the difference between SUA and Multi-NAT? ..............................................................8

13. Is it possible to access a server running behind SUA from the outside Internet? If possible,

how?................................................................................................................................................9

14. When do I need Multi-NAT? .....................................................................................................9

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

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

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

18. Why can't I configure device filters or protocol filters?..........................................................10

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

GENERAL FAQ..................................................................................................................................12

1. How can I manage P-660?........................................................................................................12

2. What is the default user name and password to loging web configurator? ..............................13

3. How do I know the P-660's WAN IP address assigned by the ISP?..........................................13

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

5. The P-660 supports Bridge and Router mode, what's the difference between them ? ..............13

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

7. Why does my provider use PPPoE?..........................................................................................14

8. What is DDNS?.........................................................................................................................14

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

10. What is DDNS wildcard? Does the P-660 support DDNS wildcard?.....................................14

11. Can the P-660's SUA handle IPSec packets sent by the IPSec gateway? ...............................15

12. How do I setup my P-660 for routing IPSec packets over SUA?............................................15

13. What is Traffic Shaping?.........................................................................................................15

14. What do the parameters (PCR, SCR, MBS) mean?.................................................................15

15.Why do we perform traffic shaping in the P-660 ? ..................................................................16

ADSL FAQ .......................................................................................................................................16

1. How does ADSL compare to Cable modems?...........................................................................16

2. What is the expected throughput?.............................................................................................17

3. What is the micro filter used for?..............................................................................................17

4. How do I know the ADSL line is up? ........................................................................................17

5. How does the P-660 work on a noisy ADSL? ..........................................................................17

6. Does the VC-based multiplexing perform better than the LLC-based multiplexing? ..............17