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Part No. 1-024-2302
Published November 1999

 

O

 

FFICE

 

C

 

ONNECT

 

 56K LAN M

 

ODEM

 

R

 

ELEASE

 

 N

 

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

AL

ER

T

LA

N S

TA

TU

S

PO

WE

R

B1

B2

TX

1

2

3

4

CO

LL

IS

DN 
OK

ISD

N L

AN

 M

ode

m

3C

892

Small office LAN

OfficeConnect

56K LAN Modem

Telephone line

Analog modem

Telecommuter

PWR TEST D

B1

B2

SD

RD

DTR

3ComImpact IQ

¤

Com

Summary of Contents for OfficeConnect 3C886A

Page 1: ...onfiguration 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 Scena...

Page 2: ...m 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 More connected 3 Com Status Reset TX D D 1 2 1 2 4 3 1 2 3 4 3 4 RX TX LK RX L...

Page 3: ... 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 Remo...

Page 4: ...eate 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 1 From the LAN Modem s main configuration page click Dial In Figure 1 LAN Modem Main Configuration Page ...

Page 5: ...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 ...

Page 6: ... 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 Wi...

Page 7: ...Configuring the Server LAN Modem 7 Figure 3 Dial In Wizard Profile Type Selection Page ...

Page 8: ...ating the successful creation of a dial in user 6 Click 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 1 From the LAN Modem main configuration page click Dial in 2 Click Dial in Wizard 3 Select LAN Modem Site to Site and then click Next...

Page 9: ...Wizard 3 Select Advanced and then click Next The Username and Password page appears 4 Enter a unique name and password to identify and verify this dial in user when dialing into this LAN Modem 5 Click 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 C...

Page 10: ...rmation 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 1 From the client LAN Modem s main page click the Service Providers icon The Service Provider Selection screen opens 2 Choose New Private Network from the drop down menu and click Select The Priv...

Page 11: ...eversing of toll charges for the dial in call Note that if a different number is configured on the server the server callback number takes precedence Callback Username and Password Enter the username and password of the callback user These values are used to verify the server s authenticity to the client These fields should match the login and password fields on the server LAN Modem s dial in user...

Page 12: ...s automatically when creating a LAN Modem Site to Site profile via the Dial in Wizard but will not automatically occur when creating a Single User profile To change the IP address of the client LAN Modem which will dial into the server LAN Modem do the following 1 Access the LAN Parameters page on the LAN Modem which will be placing the outgoing call by clicking the LAN Modem icon on the main page...

Page 13: ...another LAN Modem with several attached workstations In this case the client side LAN Modem uses NAT to share the single IP address provided by the server side LAN Modem similar to a typical ISP connection as shown in Figure 6 Note that unlike the LAN Modem Site to Site scenario described later the Single User scenario does not provide for bidirectional LAN to LAN connectivity While authorized wor...

Page 14: ...ical 192 168 1 x Figure 7 LAN Modem Site to Site Dial in In LAN Modem Site to Site Dial in the target LAN Modem provides its WAN IP address as the DNS server to the client LAN Modem This scenario allows users across the connection direct access to all available workstations via domain name or IP address Choose LAN Modem Site to Site when your dial in user will access a LAN Modem from another LAN M...

Page 15: ...e you can further define the dial in user parameters or manually create a new Dial in user via the Dial in User Parameters page You can create a total of ten dial in user profiles If you have created ten profiles and would like to add a new user you must delete one profile before adding a new one To access Dial in User profiles do the following 1 Click the Dial in Users button The Dial in User Sel...

Page 16: ...s user will be accessing the LAN Modem from an analog modem or from another LAN Modem on which attached workstations can share a single IP address Choose LAN Modem Site to Site if this user will be dialing in from another LAN Modem which utilizes bidirectional LAN to LAN connectivity Choose Advanced if this user will be accessing the LAN Modem from a router other than a LAN Modem This scenario req...

Page 17: ...y to the dial in user 4 In the Callback Username and Password fields enter the username and password which the client will use to verify the server s authenticity If the dial in client is a LAN Modem these values will match the username and password of the client LAN Modem s Callback Login and Password fields located on the client LAN Modem s service provider parameters page 5 In the Callback Dela...

Page 18: ... LAN Modem providing a further level of security Service Provider Callback options are set via the Service Provider Parameters page Refer to Setting Up a Connection to a Server LAN Modem for more information Upgrade Check Feature The LAN Modem now provides an Upgrade Check feature which will query the LAN Modem s Internet homepage for available firmware updates Note that you must have a service pr...

Page 19: ...hat resides on the LAN Modem s default subnet but by default is not used by any attached workstations Now packets to my_net com will be routed to this unused IP address and will no longer launch automatic calls Another potential application of the Local DNS Table is to assign a domain name to a frequently visited IP address In this case you would enter the IP address in the IP address field and en...

Page 20: ... On line as well as the sending of faxes class 2 0 or later from any Windows computer which is attached to the LAN Modem Note that the Virtual Fax Modem client software must be installed on every computer on the LAN which requires use of this feature The Virtual Fax Modem has been customized for use with the LAN Modem and cannot be used in conjunction with other WAN devices such as routers or othe...

Page 21: ... is in use no other calls can be placed or received on that telephone line To disable this feature leave this field set to its default value of 0 In this case Virtual Fax Modem calls will be dropped when the application using the connection is terminated or by manually disconnecting the call via the LAN Modem s Manual Call Control page 5 Click Submit This completes the LAN Modem configuration opti...

Page 22: ...tenance page has been moved to the Advanced Page submenu Modem Control parameters have been consolidated to one page Access the new Modem Connection Control page by clicking the Modem Settings button from any service provider parameter page The Default Workstation for incoming packets now offers an option of None Setting this value to None will cause incoming packets to simply be ignored Access th...

Page 23: ...llaneous Enhancements 23 The Enable NetBIOS Filtering field is located on the LAN Ethernet Parameters page which may be accessed by clicking on the LAN Modem icon from the LAN Modem s main configuration page ...

Page 24: ...in other countries 3Com the 3Com logo and OfficeConnect are registered trademarks of 3Com Corporation Windows and Windows NT are registered trademarks of Microsoft America Online is a registered trademark of America Online Inc Macintosh is a registered trademark of Apple Computer Corporation Other brand and product names may be registered trademarks or trademarks of their respective holders Releas...

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