2.3. Dialup AW

2.3.1. PPP Settings:

This subsection of the Dialup Administration Window (AW) is divided into 5 different editable sections and is only applicable if you are accessing the Internet using an analog modem, an ISDN device or a DSL connection.

Note that you cannot select or modify a profile while the IPCop server is online, or waiting to go online in “Dial on Demand” mode. Before using this page, go to the Home AW and if the status line reports Connected or Dial on Demand waiting then the click on the Disconnect button before returning to this Window. After setting up or selecting Profiles, remember to return to the Home AW and click the Connect button, if you want your IPCop server to go back online.

Profiles .  This section of the Window provides the facilities to name and set up new Dialup Profiles (up to a total of five), or to rename existing Profiles and change their parameters.

Select a Profile to be created or modified from the drop-down list. Fill in or change the parameters for the profile (see below) and click on the Save button. To select the Profile to be used for future connections, use the drop-down list to make your choice and click the Select button at the bottom of the page. Use the Restore button while editing a Profile to reinstate the previous Profile settings.

Telephony .  This section allows you to do the following:

  1. Select the appropriate Interface for your Internet connection device. This will be either a Communications port (COM1 - COM4) used mostly for modems and ISDN cards, or PPPoE which is used mostly for DSL connections.

  2. Select the appropriate Computer to modem rate. This will decide how quickly data is passed to and from your connection device. With older computer systems or modems, you may find it necessary to use one of the lower data rates to establish reliable computer/ modem communications.

  3. Enter the correct Number to dial for your Internet connection. If connecting through the PPPoE interface then chances are you will probably be leaving this blank.

  4. Select whether or not the Modem speaker on. Having the speaker on allows you to hear the connection taking place and can be a useful diagnostic aid when troubleshooting. This option is only likely to be useful if you are connecting via an analog modem.

  5. Select your Dialing mode . Use Tone dialing unless your telephone connection only recognizes Pulse dialing. Pulse dialing is a lot slower than Tone dialing.

  6. Enter your desired Maximum retries. This will decide how often IPCop attempts to connect to the Internet after a failed connection attempt.

  7. Enter your Idle timeout . This will decide how IPCop handles your Internet connection when nothing is actually being sent or received via the Internet connection. The number you enter here indicates to IPCop how long it should wait after any Internet activity before it disconnects the modem link. If you set this parameter to 0 then IPCop, once connected, will not disconnect from the Internet of its own accord.

  8. The Persistent Connection checkbox is used to instruct IPCop to maintain the modem connection at all times, even in the absence of Internet activity. In this mode it will attempt to reconnect the Internet connection whenever the link fails for any reason, such as a connection time-out at the ISP end of the modem link. Use this mode with caution. If you have metered connection charges you probably will not want to use this feature. However, if you have unlimited service time (often called "Flatrate") with your ISP, you may want to use this in order to keep the link connected as much as possible. Note that in Persistent mode, IPCop will cease reconnecting after more than the number of consecutive failed dial attempts set in Maximum Retries In this event, you have to use the Dial button on the Home AW.

  9. Dial on Demand is available by clicking the checkbox. Note that after enabling Dial on Demand, you still have to click the Connect button on the Home AW before IPCop will start connecting automatically when it detects Internet activity. The Dial on Demand option is not available for PPPoE connections.

  10. The Dial on Demand for DNS option determines whether IPCop will connect automatically when it detects DNS requests. This will be usually what you will want to happen.

  11. Connect on IPCop Restart will make IPCop connect after booting, if Dial on Demand is not selected. You will probably want to set this option as active if you are also using Dial on Demand. This is because the combination of settings will automatically put the IPCop system into Dial on Demand waiting mode each time the IPCop server is switched on or rebooted.

  12. ISP Requires Carriage Return Some ISPs require that the modem sends a carriage return to signal to indicate that it is finished sending data. If your ISP requires this, then leave it checked. If not then you can uncheck this box. The default is checked.

Additional PPPoE settings - If either PPPoE or USB ADSL is enabled, additional configuration options are available. Here you can enter two additional parameters, a service name, and a concentrator name, which some ISPs require. If your ISP does not require them, or does not give you any, then you may leave these two fields blank. Your ISP will give you two settings, VPI and VCI, which you must enter if you are using a USB ADSL connection.

Authentication. Username and Password are the username and password that your ISP should have supplied to you when you opened your account with them. There are several ways in which ISPs use this username and password to login to their systems. The most common methods are PAP or CHAP. Select this if your ISP uses either of those two. If your ISP uses a text-based login script, choose standard login script. For people in the UK who use Demon Internet as their ISP, a special script has been created for them to use. The "Other" login script option has been provided for people who have ISPs with special needs. If you need to do this, you will need to login to the IPCop box and create a file in /etc/ppp. This filename (without the /etc/ppp component) should be entered into the Script name box. The file contains 'expect send' pairs, separated by a tab. USERNAME will be substituted for the username and PASSWORD for the password. Examine the file demonloginscript in /etc/ppp, and use it as an example of what should be in this file.

DNS.  Select Automatic if your ISP supports automatic DNS server configuration, as is now usually the case. The alternative is to leave Automatic unticked and put IP addresses in the Primary DNS and Secondary DNS boxes. These IP addresses will generally be provided where necessary by your ISP.

2.3.2. USB ADSL Firmware Upload:

Use this Administration Window to upload the file mgmt.o to the IPCop server - USB ADSL will not function before this has been done. Choose the file on your desktop machine, and then press the upload button to transfer it to IPCop. Once this has been successfully uploaded, you can use USB ADSL.

2.3.3. PCI ADSL Firmware Upload:

Use this Administration Window to upload the file pciadsl.tgz to the IPCop server - PCI ADSL will not function before this has been done. Choose the file on your desktop machine, and then press the upload button to transfer it to IPCop. Once this has been successfully uploaded, you can use PCI ADSL.

2.3.4. Modem:

Modem Configuration. Is only applicable if you are attempting to connect to the Internet with a standard analog modem. The default settings that appear in this Administration Window are appropriate for most analog modems. However if you are experiencing problems connecting, then compare these settings with those suggested in the modem manual for use with your particular modem. Any or all of these settings may be left blank.

Init - The standard Initialization string used by most Hayes-compatible modems is already provided for you in this field. If, however, your modem requires a different setting then by all means change it.

Hangup - The standard Hangup string used by most Hayes-compatible modems is already provided for you in this field. If, however, your modem requires a different setting then by all means change it.

Speaker on - The standard Speaker on string used by most Hayes-compatible modems is already provided for you in this field. If, however, your modem requires a different setting then by all means change it.

Speaker off - The standard Speaker-off string used by most Hayes-compatible modems is already provided for you in this field. If, however, your modem requires a different setting then by all means change it.

Tone Dial - The standard Tone Dial string used by most Hayes-compatible modems is already provided for you in this field. If your modem and telephone line can support the Tone Dial feature and you are experiencing problems connecting then make sure that this string is appropriate for use with your modem.

Pulse Dial - The standard Pulse Dial string used by most Hayes-compatible modems is already provided for you in this field. You should not need to change it, but if your telephone service does not support Tone Dialing then you may need to make sure this is the correct string for your modem.

The only section in this area that may not be blank is the Connect Timeout. This tells IPCop the amount of time to allow the modem to attempt to connect. After this number of seconds has elapsed without proper response on the receiving end, IPCop will give up and move on to the next connection attempt. The default should work fine for you but if you notice that the connection is being dropped in the middle of the negotiation sequence (turn on the modem speaker and listen to the attempted connection) then you may need to increase this parameter slightly until it connects successfully.