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Chapter 6
Dial-in (Serial Port)

This Chapter details using the Serial (RS232) Port for Dial-in use.

Overview

The Serial (RS232) port can be used for Internet Access or to provide RAS (Dial-in) access to your LAN.

Dial-in Screen

This screen is reached via the Dial-in link on the main menu.

Figure 35: Dial-in Screen

Data - Dial-in Screen

Modem

Type
Select None if nothing is connected to the Serial Port, or you do not wish use to use the Serial Port.
For Permanent Connection (leased line):
  • Ensure the Serial Line Speed is set to match the speed on your leased line.
  • Ignore the Telephone numbers and "Disconnect after Idle" setting.
For Modem:
  • If your modem is in the drop-down list, just select it.
  • If your modem is not in the list, select "_Standard Modem" and test to see if this works.
  • If "_Standard Modem" does not work, select "Other", then click the Modem Properties button and set these settings correctly. See the section Modem Properties Screen later in this chapter for further details.
Modem Properties
Clicking this button will open the Modem Properties screen and allow changing of the modem's properties. Normally, this is not required.
See the section Modem Properties Screen later in this chapter for further details.
Serial Line Speed
Select the speed which is equal to or below the fastest Serial line speed (NOT Phone line speed) of your modem. Available speeds range from 4.8K to 460.8K (bps).

Dial-In

Enable Dial-in
If checked, this port is available for dial-in access. Otherwise, any attempt to dial-in will be blocked.
If Internet Access is also enabled, Dial-in users may find it difficult to connect because the telephone line is in use. Reducing the Disconnect after Idle Time setting for Internet Access to 1 minute may help.
  • See Dial -in Users later in this Chapter for details of creating and managing dial-in users.
  • See the Dial-in section in Chapter 4 - PC Configuration for details on setting up the remote PC to use the LevelOne WBR-1101TX's Dial-in facility.
Disconnect after Idle Time
If checked, a Dial-in connection will be terminated after the specified time-out period. The allowable range is 1-99 minutes.
If preferred, the connection time limit may be set individually for each user.
Dial-in
PPP Link
Select the desired security option for log-in:
  • PAP has widespread support; almost all communications systems support it.
  • CHAP is more secure than PAP; the password is encrypted before transmission. If it is selected, the dial-in clients must also support CHAP in order to connect.
  • MS CHAP is the Microsoft version of CHAP, used on Windows platforms. If all dial-in clients are using Windows 95 or later, you can choose this option.
  • None means no login authentication is performed.
Warning! If you choose "None", anyone can connect; this is a major security risk.

Dial-In Users

Dial-in Users Link
Use this link to create and manage users for the RAS Dial-in function. See the Dial-in Users section later in this chapter for details.

Modem Properties Screen

This screen is displayed when the Modem Properties button on the Dial-in screen (or on the Serial Port - Internet sub-screen) is clicked. Normally, it is not necessary to use this screen.

Figure 36: Modem Properties Screen

Data - Modem Properties Screen

Initial String

Initial String
This is a series of AT commands used to correctly configure your modem or ISDN.
  • The Initial String can only be changed for the "Other" modem type.
  • See Appendix C - AT Commands for further details about the required Initial String settings and standard AT commands.

Other Properties

Dial Type
Select Tone, Pulse or Other to match your system. For Other, you must provide the Dial String.
Dial String
The AT command sent to your modem before dialing. For example, "ATDT" tells your modem to use Tone Dialing.
Check your modem's documentation to find the correct AT commands.
Auto Answer Commands
Enter the command strings which turn the "auto-answer" function in your modem or ISDN TA ON and OFF.

Buttons

Save
Save the data on this screen.
Note that if the current modem was not "Other" type, and you changed the Initial String, you can NOT use "Save". You must use "Save as Other" instead.
Save as "Other"
Assign the data shown on screen to the "Other" modem type, regardless of the modem selected on the Dial-in screen.
You should then select "Other" as the Modem to use.
Cancel
Reverse any changes since the last "Save" operation.

Dial -in Users

This section describes how to create and manage remote users who wish to use the LevelOne WBR-1101TX's RAS Dial-in facility.

For details of configuring the remote PC to use Dial-in access, refer to Dial-in in Chapter 4 - Client PC Configuration.

Overview

The LevelOne WBR-1101TX provides the following options to control Dial-in access:

  1. Allow access by anyone and everyone.
  2. All users use the same log-in.
  3. Each Dial-in user has a separate log-in and password

 

Dial-in Users Screen

This screen is reached via the Dial-in Users link on the Dial-in screen.

Figure 37: Dial-in Users Screen

Data - Dial-in Users Screen

Existing Users

Dial-in Access
  • This lists all users who have Dial-in permission.
  • If no users have dial-in permission, this list will be empty.
  • Select the user or users you wish to change. Multiple users can be selected by holding down the CTRL key while selecting. (For the Macintosh, use the SHIFT key instead of CTRL).
Other Users
  • This lists all users who do not have Dial-in access.
  • If you have not created any users, this list will contain the pre-defined "guest" user.
  • Use the "Create" button on this screen to create new users as required.
  • Select the user or users you wish to change. Multiple users can be selected by holding down the CTRL key while selecting. (For the Macintosh, use the SHIFT key instead of CTRL).

New User

Name
Use this to create new users as required:
  • Enter the name for the new user here.
  • Spaces, punctuation, and special characters must NOT be used in the name.
  • User names are case insensitive (case is ignored), so you can not have 2 names which differ only by case.
  • The name can not be changed once the user is created.

Buttons

>>
Use the ">> " button to remove Dial-in access for any users selected in the "Dial-in Users" list.
<<
Use the " << " button to allow Dial-in access for any users selected in the "Other Users" list.
Del
Delete the selected user or users in the list above the button.
Edit
Modify the selected user in the list above the button. Only 1 user should be selected.
Create
This will add a new user to the database.
  • Enter the required user name in the "Name" field, then click the Create button.
  • You will then see the "User Details" screen, where you can enter the other details for this user.

 

User Details Screen

This screen is displayed in the following situations:

Figure 38: User Details Screen

Data - User Details Screen

User ID

User Name
The user name can not be changed.
Password
Verify Password
The password for the current user. Passwords are case sensitive. When creating or changing a password, enter it in the Verify Password field also.

Dial-in

Enable dial-in access
Use this to suspend or enable dial-in access.
This setting can also be changed on the Dial-in Users screen.
Enforce connection time limit
If checked, the LevelOne WBR-1101TX will terminate the Dial-in connection after the specified period. The time period can be set from 1 to 999 minutes.
If unchecked, the connection time-out set on the Dial-in screen will be used. If neither time-out is enabled, the connection must be terminated by the remote user.
Call back
Select the desired option:
  • Disabled:- The user can simply dial-in; the LevelOne WBR-1101TX will not hang-up and call back.
  • Roaming:- After providing their name and password, the user is prompted for the call-back number. The LevelOne WBR-1101TX will then hang up and dial the number provided by the remote user.
  • Fixed:- The number entered in the Telephone No. field is always used as the call-back number. The LevelOne WBR-1101TX will accept the incoming call, authenticate the user, then hang up and dial this number.
  • Telephone No:- If Fixed is chosen, a telephone number must be entered in this field. For the other options, this field is ignored.

 



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