Table Of Contents - ZyXEL Communications P-793H v2 Support Notes

FAQ ............................................................................................................................... 4
ZyNOS FAQ ...................................................... 4
1. What is ZyNOS? ................................................................................... 4
2. How do I access the P-793H v2 SMT menu? .................................... 4
3. How do I upload the ZyNOS firmware code via console? ............... 4
4. How do I upgrade/backup the ZyNOS firmware by using TFTP
client program via LAN? ..........................................................................4
6. How do I restore P-793H v2 configurations by using TFTP client
program via LAN?.................................................................................. 5
7. What should I do if I forget the system password? ......................... 5
8. How to use the Reset button? .......................................................... 5
9. What is SUA? When should I use SUA? ........................................... 6
10. What is the difference between SUA and Full Feature NAT?........ 6
11. Is it possible to access a server running behind SUA from the
outside Internet? If possible, how?....................................................... 7
12. When do I need to select Full Feature NAT? .................................. 7
13. What IP/Port mapping does Multi-NAT support? ........................... 7
14. How many network users can the SUA/NAT support?.................. 8
15. What are Device filters and Protocol filters?.................................. 9
16. How can I protect against IP spoofing attacks? ............................ 9
Product FAQ .................................................... 11
1. What is SHDSL, SHDSL.bis? ........................................................... 11
2. How can I manage P-793H v2? ........................................................ 11
3. What is the default password for Web Configurator? ................... 11
4. What"s the difference between „Common User Account" and
„Administrator Account"?..................................................................... 11
5. How do I know the P-793H v2's WAN IP address assigned by the ISP?
................................................................................................................ 11
6. What do I need before using the SHDSL? ....................................... 12
7. What should I do when the power (PWR) LED is off? .................... 12
8. How to debug while DSL LED is off? ............................................... 12
9. How do I verify my PC's IP address assigned by the P-793H v2? .. 12
10. What is Traffic Shaping?................................................................. 12
11. What do the parameters (PCR, SCR, MBS) mean? ....................... 12
12. What do ATM QoS Types (CBR, UBR, VBR-nRT, VBR-RT) mean?
................................................................................................................ 13
13. Why do we perform traffic shaping in the P-793H v2? ................. 13
14. The P-793H v2 supports Bridge and Router mode, what's the
difference between them?.................................................................... 14
15. How do I know I am using PPPoE? ............................................... 14
16. Why does my provider use PPPoE? ............................................. 14
17. What is DDNS?................................................................................. 14
18. When do I need DDNS service?....................................................... 15
All contents copy right © 2010 Zy XEL Communications Corporation.
P-793H v 2 Support Notes
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