User's Manual

4
Wireless LAN PC Card
Peer to Peer
Wireless LAN PC Card
Wireless LAN PC Card
Wireless LAN USB Adapter
6. Wireless extensions to Ethernet networks
Network managers in dynamic environments can minimize the overhead caused by moves, extensions to
networks, and other changes with wireless LANs.
7. Wired LAN backup
Network managers implement wireless LANs to provide backup for mission-critical applications running
on wired networks.
8. Training/Educational Facilities
Training sites at corporations and students at universities use wireless connectivity to ease access to
information, information exchanges, and learning.
1-6 Network Configurations
To better understand how the wireless LAN products work together to create a wireless network, it might
be helpful to depict a few of the possible wireless LAN PC card network configurations. The wireless LAN
products can be configured as:
1. Ad-hoc (or peer-to-peer) for departmental or SOHO LANs.
2. Infrastructure for enterprise LANs.
3. IP Sharing for 56K/ISDN TA/Cable/DSL Modem – Connect Internet and your SOHO network.
Ad-hoc (peer-to-peer) Mode
This is the simplest network configuration that several computers equipped with the PC Cards that form a
wireless network whenever they are within range of one another (Figure 1-2). In ad-hoc mode, each
client, is peer-to-peer, would only have access to the resources of the other client and requires no the
access point. This is the easiest and least expensive way for the SOHO to set up a wireless network.
Figure 1-2 A wireless Ad-hoc network
Infrastructure Mode
The infrastructure mode requires the use of an access point (AP). In this mode, all wireless