User's Manual

CHAPTER 1
INTRODUCTION
Revised: 23 Jan 08 1-2 EST P/N AA107G
MODEL 195Eg CONFIGURATION MODES
The Model 195Eg can be configured for multiple
modes of operation without any changes to the
hardware:
Access Point Modes
1. Access Point Bridge Mode. When the
Model 195Eg is configured as an Access
Point it will provide a wireless bridge from a
hardwired Local Area Network (LAN) to
laptops, office computers, Personal Digital
Assistants (PDA’s), video cameras, PLC’s,
etc. that have integral or external 802.11g or
802.11b wireless devices or other Model
195Eg modems in client modes. Multiple
Access Point Bridge modems can be
physically connected to the same network
(LAN) or through a radio link using the
Access Point Repeater mode to provide
overlapping, seamless Ethernet communication for mobile devices. The ESTeem Model 195Eg in Access Point Bridge mode
will pass all network traffic between connected devices including global network broadcasts. See Figure 1.
2. Access Point Router Mode. In this mode the ESTeem Model 195Eg will function as a router between the wired Ethernet
network, connect to the 195Eg’s Ethernet port, and the wireless network of 802.11g/b clients and other 195Eg’s in repeater
peer mode. As in all standard router configurations, the wireless and wired Ethernet networks will need to be on separate
subnets. To communicate from the wired Ethernet network to devices on the wireless network, a separate router (in addition to
the Model 195Eg) is required. The 195Eg in Access Point Router mode will pass network traffic for connected devices but
will block global network broadcasts from the wired network. This mode of operation should be used instead of the Access
Point Bridge mode when a
separation between networks is
required or the ESTeem is
connected to larger LAN Networks
that will continuously send global
network broadcasts (Figure 2).
3. Access Point Masquerade Mode.
The Access Point Masquerade
mode is a special use of the Access
Point mode where the Model 195Eg
will connect 802.11g or 802.11b
wireless devices as clients into a
single static IP address on a wired
network. Data requests from the
wireless network will be processed
through the Access Point
Masquerade 195Eg, but any request
from the wired Ethernet network to
devices on the wireless network will
Figure 2 – Repeater Mode Diagram
Figure 3- Access Point Masquerade Diagram