About bridging – Allied Telesis AT-WL2411 User Manual
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AT-WL2411 Installation and User’s Guide
78
attached to the network. Each hello message contains the LAN ID of the
access point that originated the message. The protocol does not allow
wireless links to exist between access points that do not have matching
LAN IDs.
About Bridging
Wireless end devices operate similarly to other Ethernet products;
therefore, all of your existing Ethernet applications will work with the
wireless network without any special networking software. Figure 31
shows the general architecture of the access point.
Figure 31 General Architecture of the Access Point
By default, wireless traffic is not bridged to a remote IP subnet. Any
access point on a remote subnet that can receive IP hello messages can
establish an IP tunnel; therefore, multiple IP tunnels can exist between
the root access point and a single remote IP subnet.
If bridging is disabled, all traffic for end devices is forwarded between
access points using data link encapsulation, which means that the MAC
source/destination addresses correspond to the access points
originating/receiving the traffic for the end devices. By using data link
encapsulation, you prevent network monitoring tools and other
network components from detecting end device MAC/IP addresses that
belong to the remote subnet. It is strongly recommended that you use
the default setting when you are using IP tunnels to provide mobility of
other routable protocols, such as IPX. In some network installations,
detecting these addresses may generate alarms or cause switches to
behave erroneously. There is no additional forwarding overhead for
disabling bridging in this situation.
Management and Configuration
MIB
DHCP
SNMP
Agent
TCP/IP
TFTP
HTTP
Telnet
File
System
Configuration
Settings
Bridging
Multiport Bridge
Forwarding
Database
Ethernet
Port
Antenna
Connectors
Antenna
Connectors
Ethernet
Connector
RS-232 Connector
Configuration Port
Spanning
Tree
Wireless ARP
Server
Radio
Port 1
Radio
Port 2
IP
Port
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