P-660HN Series Support Notes
3
All contents copyright © 2010 ZyXEL Communications Corporation.
1. How does ADSL compare to Cable modems? ................................ 17
2. What is the expected throughput? ................................................... 17
3. What is the microfilter used for? ...................................................... 17
4. How do I know the ADSL line is up? ................................................ 17
5. How does the P-660HN-T1A work on a noisy ADSL? .................... 17
6. Does the VC-based multiplexing perform better than the
LLC-based multiplexing? ....................................................................... 18
7. How do I know the details of my ADSL line statistics? ................. 18
8. What are the signaling pins of the ADSL connector? .................... 18
9. What is triple play? ............................................................................. 18
Firewall FAQ ................................................................................................ 20
General...................................................................................................... 20
1. What is a network firewall? .................................................... 20
2. What makes P-660HN-T1A secure? ..................................... 20
3. What are the basic types of firewalls? ................................... 20
4. What kind of firewall in the P-660HN-T1A? ........................... 21
5. Why do you need a firewall when your router has packet
filtering and NAT built-in? ........................................................... 21
6. What is Denials of Service (DoS) attack?.............................. 21
7. What is Ping of Death attack? ................................................ 22
8. What is Teardrop attack? ....................................................... 22
9. What is SYN Flood attack? .................................................... 22
10. What is LAND attack? .......................................................... 22
11 What is Brute-force attack? ................................................... 23
12. What is IP Spoofing attack? ................................................. 23
13. What are the default ACL firewall rules in P-660HN-T1A? . 23
Configuration ........................................................................................... 23
1. How do I configure the firewall? ............................................. 23
2. How do I prevent others from configuring my firewall? ......... 23
3. Why can't I configure my P-660HN-T1A using Web
Configurator/Telnet over WAN? ................................................. 24
4. Why can't I upload the firmware and configuration file using
FTP over WAN?.......................................................................... 25
Log and Alert ........................................................................................... 26
1. When does the P-660HN-T1A generate the firewall log? ..... 26
2. What does the log show to us? .............................................. 26
3. How do I view the firewall log? ............................................... 26
4. When does the P-660HN-T1A generate the firewall alert?... 27
5. What is the difference between the log and alert? ................ 27
Wireless FAQ ............................................................................................... 28
General FAQ ............................................................................................. 28
1. What is a Wireless LAN? ..................................................... 28
2. What are the advantages of Wireless LAN? ..................... 28
3. What is the disadvantage of Wireless LAN? .................... 28
