User manual
Table Of Contents
- Table of Contents
- About This Guide
- Introduction
- ISDN LAN Modem Functionality Description
- Hardware Description and Installation
- Setting Up TCP/IP for Windows and Macintosh
- Configuring the ISDN LAN Modem
- Advanced Configuration
- Before you Begin
- Setting Up Additional Service Providers
- Editing Service Provider Profiles
- Restricting Workstations from Accessing Service Provider(s)
- Configuring Your LAN Parameters
- Changing Data Call Parameters
- Changing Voice Call Routing
- Reserving DHCP Addresses
- Selective Password Protection
- Changing Your Password
- Setting Up Your ISDN Line Manually
- Locking and Unlocking the Configuration
- Configuring the ISDN LAN Modem from a Remote Location
- Supplementary Voice Call Services
- Placing, Receiving and Disconnecting Calls
- Troubleshooting and Maintenance
- Networking Primer
- What is a network?
- What is a LAN?
- What is a WAN?
- How does a LAN connect to a WAN?
- What is a LAN modem?
- What is ISDN?
- How do different devices communicate with each other?
- What is TCP/IP?
- What is an IP Address?
- What is a Subnet Mask?
- Dynamic and Static IP Addresses
- What is DHCP?
- What is DNS?
- What is NAT?
- What are numbered and unnumbered links?
- How is overall throughput determined?
- What is a network?
- Using the Custom Web Browser
- ISDN LAN Modem Factory Defaults
- ISDN LAN Modem Specifications
- Ordering ISDN Service
- If You Place Your ISDN Order Through 3Com
- If You Place Your ISDN Order Through the Telephone Company
- Supplementary Voice Features Included with U, EZ-ISDN-1, V and EZ-ISDN 1A
- Limitations of ISDN Ordering Codes U, EZ-ISDN 1, V and EZ-ISDN 1A
- What If I Already Have ISDN Service?
- Table of ISDN Ordering Code Capabilities
- Glossary
- Index
- 3Com Corporation Limited Warranty
Features 13
Features
Ease of Installation and Use
■ SPID Wizard automatic configuration for telephone company switch and
service profile ID (SPID) numbers.
■ Web-based, point-and-click user interface for configuration and online help.
■ Automatic configuration verification with Internet connection through your
Internet Service Provider (ISP).
■ Firmware updates, user guides and technical notes available on the Web.
High Performance
■ Hi/fn™ LZS
®
compression, which conforms to these IETF RFCs:
The PPP
Compression Control Protocol
(RFC 1962) and
PPP Stacker LZS Compression
Protocol
(RFC 1974).
■ Multilink PPP (RFC 1990), which combines two PPP B channel calls to create a
virtual, single 128 Kbps network connection.
■ TollMizer, which places a single B channel or a Multilink PPP data call over a
voice connection, saving you the additional charge for a data call.
Connectivity
■ ISDN Basic Rate U interface.
■ Built in four-port 10BASE-T, 10 Mbps Ethernet hub. Up to 25 users can be
supported by connecting to an external eight port-hub.
■ Two analog voice ports.
■ Preferred Provider support which allows simultaneous connections to two
different ISPs.
Routing
■ IP Routing.
■ Dynamic or static IP addresses supplied by the ISP (WAN side).
■ WAN access for up to 25 local workstations on the LAN (10BASE-T).
■ Dynamic Host Control Protocol (DHCP) server functionality on the LAN, which
automatically assigns an IP address to a newly-attached computer on an IP
network.
■ Domain Name Service (DNS) server functionality for the LAN, which translates
the common, alphanumeric name of a device to the numeric IP address of a
device.
■ Network Address Translation (NAT) between LAN and WAN, which allows
multiple users on the LAN to share a WAN connection. Note that individual
email accounts may still be maintained at the ISP.
■ Multiplexing traffic from several computers to the same remote destination.