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P-660HW-Tx v2 Series
802.11g Wireless ADSL2+ 4-port Gateway
Support Notes
Version3.40
Mar. 2006
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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
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P-660HW-Tx v2 Series Support Notes 17. What do the ATM QoS Types (CBR, UBR, VBR-nRT, VBR-RT) mean? ................................................................................................................16 18. What is content filter? .......................................................................17 ADSL FAQ.................................................................................................18 1. How does ADSL compare to Cable
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P-660HW-Tx v2 Series Support Notes Wireless FAQ............................................................................................29 General FAQ...........................................................................................29 1. What is a Wireless LAN?......................................................29 2. What are the advantages of Wireless LAN?.........................29 3. What is the disadvantage of Wireless LAN?............
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P-660HW-Tx v2 Series Support Notes 4. What is the difference between 40-bit and 64-bit WEP?. .....35 5. What is a WEP key?.............................................................35 6. Will 128-bit WEP communicate with 64-bit WEP?................35 7. Can the SSID be encrypted?................................................36 8. By turning off the broadcast of SSID, can someone still sniff the SSID? ................................................
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P-660HW-Tx v2 Series Support Notes 3. Using FTP to Upload the Firmware and Configuration Files.............118 CI Command Reference.........................................................................121 5 All contents copyright © 2006 ZyXEL Communications Corporation.
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P-660HW-Tx v2 Series Support Notes FAQ ZyNOS FAQ 1. What is ZyNOS? ZyNOS is ZyXEL's proprietary Network Operating System. It is the platform on all Prestige routers that delivers network services and applications. It is designed in a modular fashion so it is easy for developers to add new features. New ZyNOS software upgrades can be easily downloaded from our FTP sites as they become available. 2. What’s Multilingual Embedded Web Configurator? Mul
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P-660HW-Tx v2 Series Support Notes a. Use the TELNET client program in your PC to login to your P-660HW-Tx v2. b. Enter CI command 'sys stdio 0' to disable Stdio idle timeout c. To upgrade firmware, use TFTP client program to put firmware in file 'ras' in the Prestige. After data transfer is finished, the P-660HW-Tx v2 will program the upgraded firmware into FLASH ROM and reboot itself. d. To backup your firmware, use the TFTP client program to get f
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P-660HW-Tx v2 Series Support Notes 9. What is SUA? When should I use SUA? SUA (Single User Account) is a unique feature supported by Prestige router which allows multiple people to access Internet concurrently for the cost of a single user account. When Prestige acting as SUA receives a packet from a local client destined for the outside Internet, it replaces the source address in the IP packet header with its own address and the source port in the
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P-660HW-Tx v2 Series Support Notes 11. Is it possible to access a server running behind SUA from the outside Internet? If possible, how? Yes, it is possible because P-660HW-Tx v2 delivers the packet to the local server by looking up to a SUA server table. Therefore, to make a local server accessible to the outside users, the port number and the inside IP address of the server must be configured. (You can configure it in Web Configurator, Advanced Setu
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P-660HW-Tx v2 Series Support Notes • Many One-to-One: In Many One-to-One mode, the P-660HW-Tx v2 maps each ILA to unique IGA. • Server: In Server mode, the P-660HW-Tx v2 maps multiple inside servers to one global IP address. This allows us to specify multiple servers of different types behind the NAT for outside access. Note, if you want to map each server to one unique IGA please use the One-to-One mode. The following table summarizes the five type
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P-660HW-Tx v2 Series Support Notes 16. How can I protect against IP spoofing attacks? The P-660HW-Tx v2's filter sets provide a means to protect against IP spoofing attacks. The basic scheme is as follows: For the input data filter: • Deny packets from the outside that claim to be from the inside • Allow everything that is not spoofing us Filter rule setup: • Filter type =TCP/IP Filter Rule • Active =Yes • Source IP Addr =a.b.c.d • Source I
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P-660HW-Tx v2 Series Support Notes Product FAQ 1. How can I manage P-660HW-Tx v2? Multilingual Embedded Web GUI for Local and Remote management CLI (Command-line interface) Telnet support (Administrator Password Protected ) for remote configuration change and status monitoring FTP/ TFTP sever, firmware upgrade and configuration backup and restore are supported(Administrator Password Protected) 2. What is the default password for Web Configur
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P-660HW-Tx v2 Series Support Notes 5. What is the micro filter or splitter used for? Generally, the voice band uses the lower frequency ranging from 0 to 4KHz, while ADSL data transmission uses the higher frequency. The micro filter acts as a low-pass filter for your telephone set to ensure that ADSL transmissions do not interfere with your voice transmissions. For the details about how to connect the micro filter please refer to the user's manual. 6.
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P-660HW-Tx v2 Series Support Notes locations on the Internet. To use the service, you must first apply an account from several free Web servers such as http://www.dyndns.org/. Without DDNS, we always tell the users to use the WAN IP of the P-660HW-Tx v2 to reach our internal server. It is inconvenient for the users if this IP is dynamic. With DDNS supported by the P-660HW-Tx v2, you apply a DNS name (e.g., www.zyxel.com.tw) for your server (e.g., Web
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P-660HW-Tx v2 Series Support Notes managements. Because the remote gateway checks this source port during connections, the port thus is not allowed to be changed. 13. How do I setup my P-660HW-Tx v2 for routing IPSec packets over SUA? For outgoing IPSec tunnels, no extra setting is required. For forwarding the inbound IPSec ESP tunnel, A 'Default' server set is required. You could configure it in Web Configurator, Advanced Setup, Network -> NAT ->
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P-660HW-Tx v2 Series Support Notes fluctuating natural bit rate. The P-660HW-Tx v2 is able to support variable traffic among different virtual connections. Certain traffic may be discarded if the virtual connection experiences congestion. Traffic shaping defines a set of actions taken by the P-660HW-Tx v2 to avoid congestion; traffic shaping takes measures to adapt to unpredictable fluctuations in traffic flows and other problems among virtual connecti
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P-660HW-Tx v2 Series Support Notes 18. What is content filter? Internet Content filter allows you to create and enforce Internet access policies tailored to your needs. Content filter gives you the ability to block web sites that contain key words (that you specify) in the URL. You can set a schedule for when the P-660HW-Tx v2 performs content filtering. You can also specify trusted IP Addresses on LAN for which the P-660HW-Tx v2 will not perform
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P-660HW-Tx v2 Series Support Notes ADSL FAQ 1. How does ADSL compare to Cable modems? ADSL provides a dedicated service over a single telephone line; cable modems offer a dedicated service over a shared media. While cable modems have greater downstream bandwidth capabilities (up to 30 Mbps), that bandwidth is shared among all users on a line, and will therefore vary, perhaps dramatically, as more users in a neighborhood get online at the same time. C
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P-660HW-Tx v2 Series Support Notes 6. Does the VC-based multiplexing perform better than the LLC-based multiplexing? Though the LLC-based multiplexing can carry multiple protocols over a single VC, it requires extra header information to identify the protocol being carried on the virtual circuit (VC). The VC-based multiplexing needs a separate VC for carrying each protocol but it does not need the extra headers. Therefore, the VC-based multiplexing i
