3Com OfficeConnect 3C886A Manual de instrucciones

Part No. 1-024-2302

Published November 1999

FFICE

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56K LAN M

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OTE

V. 7.2.0

Introduction

This release note describes the following enhancements made to the

OfﬁceConnect 56K LAN Modem as part of this latest ﬁrmware release.

■

Enhanced Dial-in Support

■

Service Provider Callback Feature

■

Upgrade Check Feature

■

Local DNS Table

■

LAN Modem Desktop Manager (Windows 95/98/NT)

■

Virtual Fax Modem (Windows 95/98 and NT 4.0)

■

Miscellaneous Enhancements

Enhanced Dial-in

Support

Previously, the LAN Modem provided limited dial-in capability, such as for

accessing a remotely located LAN Modem for remote conﬁguration or to check

statistics. Now, Dial-in support has been enhanced to extend access to

workstations or servers located behind a remote LAN Modem.

Dial-in Applications

The following dial-in scenarios are supported by the LAN Modem.

■

Single User Dial-in

■

LAN Modem Site-to-Site Dial-in

■

Advanced Dial-in

For more detailed descriptions of these scenarios, refer to “Understanding the

Three Dial-in Scenarios” later in this release note.

Dial-In

Wizard

Profile Name Network Scenario

Single User Single analog modem calls into a LAN Modem.

Public telephone

network

ALERT

LANSTATUS

POWERB1B2TX1234

COLL

ISDN

ISDNLANModem

3C892

Small office LAN

OfficeConnect

56K LAN Modem

Telephone line

Analog modem

Telecommuter

PWR TEST D B1 B2 SD RD DTR

3Com

Impact IQ

3Com

FFICE

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V. 7.2.0

Single User Single user on a router (such as a LAN Modem) calls into a LAN Modem.

LAN Modem

Site to Site LAN Modem to LAN Modem

Advanced Router other than a LAN Modem calls into a LAN Modem

Dial-In

Wizard

Profile Name Network Scenario

Public telephone

network

ALERT

LANSTATUS

POWERB1B2TX1234

COLL

ISDN

ISDNLANModem

3C892

Small office LAN

OfficeConnect

56K LAN Modem

Telephone line

Router running NAT

Home office with multiple users

Public telephone

network

Small office LAN Small office LAN

OfficeConnect

56K LAN Modem

Telephone line

OfficeConnect

56K LAN Modem

Public telephone

network

Telephone line

Small office LAN

OfficeConnect

56K LAN Modem

Office LAN

Router (other than

LAN Modem)



Moreconnected

3Com

StatusReset

31/23/434

LAN

RemoteAccessSystem1500

WAN

Power

BRIISDNU

ANALOG

SLOT1SLOT2

STACKNET

CONSOLE

SUPER

STACK

3Com

Status

Reset

31/2 3/4 34

LAN

RemoteAccess System 1500

WAN

Power

BRIISDNU

SLOT1 SLOT2

STACKNET

CONSOLE

SUPER

STACK

3Com

Configuring Dial-In

Conﬁguring Dial-In

There are three main steps for conﬁguring dial-in support.

Change remote administration password

Create dial-in user proﬁle on server or central LAN Modem

Create service provider proﬁle on client or remote site

Before you Begin

Before you begin conﬁguration, please note the following:

■

Any remotely-located device you wish to access on the remote LAN Modem

must be running appropriate software, such as a Web or FTP server.

Examples of server software are Apple’s Personal Web Sharing for the

Macintosh or Microsoft’s Peer Web Services for Windows 95/98. Check with

your computer’s accompanying documentation for more information

■

A LAN Modem can only accept dial-in calls from a device that matches its own

call type.

For instance, a 56K LAN Modem will only accept dial-in calls from another 56K

LAN Modem, or another analog modem or router. Calls from an ISDN LAN

Modem or other ISDN terminal adapters are not permitted for dial-in access.

Changing the Remote

Administration

Password

Previously, when dialing into a LAN Modem to conﬁgure it remotely or check

statistics, you were prompted to enter the password associated with the LAN

Modem’s conﬁguration parameters. Additional security has now been added

which requires a unique user name and password for remote access. This is

referred to as the Remote Admin account and is reserved for remote conﬁguration

only. This account does not provide dial-in access to LAN or WAN resources other

than the LAN Modem conﬁguration parameters themselves. By default the user

name is

Admin

and the password is

1234

. Note that the username and password

is case sensitive.

To change the default username and password (recommended), do the following.

Click the

Dial-in

button located on the LAN Modem’s mainpage.

The Dial-in Conﬁguration submenu opens.

Click the

Dial-in Users

button.

The Dial-in User Selection screen opens.

Select

Admin

and then click

In the Username ﬁeld, delete the default name and then enter a new name.

In the Password ﬁeld, delete the default password and then enter a new

password.

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Conﬁguring the

Server LAN Modem

Conﬁguring the server LAN Modem for Dial-in access requires two main steps:

■

Conﬁgure global dial-in parameters

■

Create a dial-in user proﬁle for each dial-in connection account

Conﬁguring global

dial-in parameters

Dial-in Global parameters, described below, allow you to designate a Callback

preﬁx, set the site number for LAN-to-LAN dial-in, and set authentication

preferences to be used for all dial-in users.

From the LAN Modem’s main conﬁguration page, click

Dial-In

Figure 1

LAN Modem Main Conﬁguration Page

Configuring the Server LAN Modem

Click

Dial-in Global

Figure 2

Dial-In Global Parameters Screen

If you are planning to use the Callback feature, use the Callback Preﬁx ﬁeld to

enter the number required to get an outside line, such as a 9. Otherwise, leave this

ﬁeld blank.

In the LAN to LAN Site Number, designate the LAN Modem site for dial-in access

from other LAN Modems which will employ the LAN Modem Site-to-Site scenario.

Note that setting the site number may change the IP address of the LAN Modem,

as described below.

■

Choose

None

(the default) to leave the LAN Modem’s IP address unchanged.

You might choose

None

if you will never employ the LAN Modem Site-to-Site

scenario with this LAN Modem (that is, all your dial-in users will employ the

Single-User Dial-in scenario, and do not require LAN-to-LAN connectivity), or

an advanced user might choose

None

if the IP address of the LAN Modem has

been manually conﬁgured for static IP addressing.

■

Choose

Site A

to designate this LAN Modem’s IP address as 192.168.1.1 (the

LAN Modem default IP address).

■

Choose

Site B

if this LAN Modem will place or receive calls to another LAN

Modem which has been conﬁgured as Site A. Choosing

Site B

will change this

LAN Modem’s default IP address to 192.168.2.1

For example, if you have already designated a remote LAN Modem as

Site A, and you are now setting up a second LAN Modem for LAN-to-LAN

connectivity, you would designate this second LAN Modem as Site B. This

will differentiate between the two LAN Modem IP addresses, which by

default are the same.

FFICE

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■

Choose

Site C

if this LAN Modem will place or receive calls to another LAN

Modem previously conﬁgured as Site A or Site B. Choosing

Site C

will change

this LAN Modem’s default IP address to 192.168.3.1

In the Auto Answer ﬁeld, choose the number of rings to wait before the LAN

Modem automatically answers dial-in calls. By default Auto Answer is set to

Disable,

which routes all incoming calls directly to any analog equipment attached

to the LAN Modem phone port. Note that Auto Answer must be set to

greater if you wish to allow dial-in access to the LAN Modem.

In the PPP Authentication ﬁeld, choose the type of PPP authentication you want

the LAN Modem to use when negotiating dial-in access. Note that at least one

must authentication type must be enabled. By default, PAP, CHAP and MS-CHAP

are enabled. This means that if the client side can do any of the three,

authentication will be successful.

Click

Submit to save changes.

If you chose Site B or Site C as the LAN to LAN Site Number, the LAN Modem will

re-initialize as its IP address is reset. The front panel LEDs ﬂash, indicating a reset in

progress.

Once the LAN Modem’s IP address has been changed, you can no longer access

the LAN Modem until your workstation has been restarted and has acquired an IP

address belonging to the new LAN Modem subnet.

Create a Dial-In User

Proﬁle Using the Dial-In

Wizard

Before dialing into a LAN Modem, a dial-in user account proﬁle must be created

for every user or site that requires access. To create a dial-in user proﬁle on the

central or server site using the Dial-In Wizard, refer to the appropriate application

below for speciﬁc Dial-In Wizard instructions. For more detailed descriptions of

these scenarios, refer to “Understanding the Three Dial-in Scenarios” later in this

release note.

■Single User dial-in (analog modem or an analog router, such as a LAN Modem,

running NAT)

■LAN Modem Site-to-Site dial-in (LAN-to-LAN bidirectional connectivity)

■Advanced dial-in (unknown router dialing into a LAN Modem)

Single User Dial-In Wizard Instructions

1From the LAN Modem main conﬁguration page, click Dial-in.

2Click Dial-in Wizard.

The Dial-in Wizard screen opens, as shown in Figure 3.

Configuring the Server LAN Modem 7

Figure 3 Dial-In Wizard Proﬁle Type Selection Page

8OFFICECONNECT 56K LAN MODEM RELEASE NOTE V. 7.2.0

3Select Single User and click Next.

The Username and Password page appears, as shown in Figure 4.

Figure 4 Dial-In WIzard Username and Password Screen

4Enter a unique name and password to identify and verify this dial-in user when

dialing into this LAN Modem. Note that this will match the username and

password conﬁgured on the client device which dials in to this LAN Modem.

5Click Next.

The Congratulations page opens, indicating the successful creation of a dial-in

user.

6Click Continue.

This completes the dial-in conﬁguration for single user. To continue setting up your

LAN Modem for dial-in access, go on to “Conﬁguring the Client Site”.

LAN Modem Site-to-Site Dial-In Wizard Instructions

1From the LAN Modem main conﬁguration page, click Dial-in.

2Click Dial-in Wizard.

3Select LAN Modem Site-to-Site and then click Next.

The Username and Password page appears.

4Enter a unique name and password to identify and verify this dial-in user when

dialing into this LAN Modem. This will match the username and password which

will be entered in the client LAN Modem’s service provider proﬁle.

5Click Next.

Configuring the Client Site 9

6Specify the site name you would like to designate for this dial-in user’s remote LAN

Modem, A, B or C. Note that this site name must be different from the site name

designated in this LAN Modem’s Dial-In Global Parameters, in order to distinguish

between the two networks. The site name speciﬁed here will match the site name

conﬁgured in the client LAN Modem’s Dial-in Global Parameters.

7Click Next.

The Congratulations page opens, indicating the successful creation of a dial-in

user.

8Click Continue.

This completes the dial-in conﬁguration for LAN Modem Site-to-Site dial-in. To

continue setting up your LAN Modem for dial-in access, go on to “Conﬁguring the

Client Site”.

Advanced Dial-In Wizard Instructions

1From the LAN Modem main conﬁguration page, click Dial-in.

2Click Dial-in Wizard.

3Select Advanced and then click Next.

The Username and Password page appears.

4Enter a unique name and password to identify and verify this dial-in user when

dialing into this LAN Modem.

5Click Next.

The dial-in user parameters page appears, allowing you to manually conﬁgure the

Advanced dial-in user parameters. For further conﬁguration instructions refer to

“Dial-in Users Parameters Screen”.

Conﬁguring the Client

Site To conﬁgure a dial-in user proﬁle on the client site refer to the appropriate section:

■Conﬁguring the client site for a single modem

■Conﬁguring the client site for a LAN Modem

Conﬁguring the Client

Site for a Single Modem

If the client dialing into the LAN Modem will be a single modem, use the

appropriate software such as Dial-Up Networking for Windows to create a

connection to the LAN Modem. The basic steps for creating a Dial-Up Networking

connection are as follows.

■Create a Dial-Up Network entry

■Enter the telephone number of the remote LAN Modem

■Enter the username and password

10 OFFICECONNECT 56K LAN MODEM RELEASE NOTE V. 7.2.0

Conﬁguring the Client

Site for a LAN Modem

If the client dialing into the LAN Modem is another LAN Modem, you must

conﬁgure a new service provider proﬁle on the client LAN Modem which will dial

into the remote LAN Modem. You then use this service provider to place

automatic or manual calls to the server LAN Modem as needed.

When using a client LAN Modem to dial into another LAN Modem via the

Single-User dial-in scenario, you must manually change the IP address of the client

LAN Modem in order to distinguish between the two networks. Refer to

“Changing the IP address on the LAN Modem” for instructions.

Conﬁgure a Service

Provider for this Dial-In

Connection

Conﬁgure a service provider for this connection as follows.

Before You Begin

You will need the following information.

■Telephone number of the server LAN Modem

■User ID and password of the Dial-in user

■IP address/subnet mask of the server LAN Modem

Additionally, if you would like to use the Callback feature, you will need the

following information:

■Callback telephone number

■Callback username and password

Setting Up a Connection

to a Server LAN Modem

To set up a connection on a client LAN Modem to dial into a server LAN Modem,

do the following.

1From the client LAN Modem’s main page, click the Service Providers icon.

The Service Provider Selection screen opens.

2Choose New (Private Network) from the drop-down menu and click Select.

The Private Network Parameters screen opens.

If you already have four Service Providers conﬁgured on your LAN Modem, one

must be deleted before a new Private Network can be created.

3In the Name ﬁeld, enter a name for this service provider, such as the location of

the server LAN Modem.

4In the Dial Out Preﬁx ﬁeld, enter the number required by your location to reach an

outside line, if necessary.

5In the Call Waiting Disable Command ﬁeld, enter the appropriate command to

disable call waiting.

6In the Telephone Number ﬁeld, enter the telephone number of the server LAN

Modem.

7In the Alternate Number ﬁeld, enter an alternative number, if applicable.

8Under Security, enter the User ID and Password for this Dial-in User to access the

server LAN Modem.

9Leave the DNS Addresses ﬁelds blank, as these values are assigned by the server

LAN Modem upon connection.

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