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All FAQs » Gnet modems FAQ » all

FAQ RevisionsEditor: IKARI See Profile
Last modified on 2008-07-11 10:17:48
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General

BB005x

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    • How do I get the latest firmware? (#7557)

    		 (back)
    Here !

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    2 BB005x

    ·How to use telnet to connect to my modem?
    ·How can I check the sync rate of my modem?
    ·I think my line may not be very good, how can I check?

    How to use telnet to connect to my modem? (#7556)

    		 (back)
    There are two methods to log into your modem.

    First way is through telnet.
    Set your IP on your LAN connection under TCP/IP protocol to 192.168.7.X where X can be any number except 1. The subnet mask is 255.255.255.0

    Then use telnet to connect to 192.168.7.1
    Like so: Start > Run... > telnet
    Type "o 192.168.7.1" to connect to modem.

    Second way is through serial cable.
    Connect the serial cable to your modem and serial port on your PC. Run HyperTerminal and use these settings:

    Bits per second: 9600
    Data bits: 8
    Parity: none
    Stop bits: 1
    Flow control: none

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    How can I check the sync rate of my modem? (#7726)

    		 (back)
    Using the CLI, type:

    adsl show rate

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    I think my line may not be very good, how can I check? (#7579)

    		 (back)
    The router maintains statistics on the line quality. Using the CLI, type:

    adsl show perf

    You will get two sets of figures, one for the downstream data path (from the ISP to you) and one for the upstream data path (from you to the ISP). There are three different figures to look at.

    First, noise margin
    This is a measure of how good your data signal is relative to the noise on the line. This should be a high number and in any case no lower than around 6 dB. If it's this low you could find the router gets link errors or even sync problems.

    The second is attenuation
    Measures how much signal loss there is on the line - this should be a low figure and in any case should be no more than around 60-65 dB.

    The third is output power
    Indicates how hard the router is working to maintain the link. High numbers (around 19 or above) can indicate possible problems.

    Any of these numbers near or at the limits described can cause the router to lose sync or have high error rates resulting in poor internet performance and are usually due to poor cabling, interference or a line which is at the distance limit of where ISP can still provide ADSL from the local exchange.

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