Elpro Technologies 450U-E Wireless Ethernet Modem & Device Server User Manual
Rev Version 1.0.12-Beta7
www.cooperbussmann.com/wirelessresources
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The WDS configuration for Site A & Site C will be exactly the same as Site B except the Connection Mode will need to
.
The main network configuration settings for all sites will all be
the same for each site (as shown).
This setup can be replicated many times which will allow
Roaming Stations full connectivity across the network.
IP Routing
3.13
When a 450U-E receives an IP frame that is destined for an IP address on a different network, it checks if the
network
address
matches the network address of one of its own interfaces (i.e. hard-wired Ethernet, or wireless Ethernet, or WDS)
and forwards the frame appropriately. However, if the IP network address does not match the network address of any of
its interfaces, the 450U-E will forward the frame to its default gateway. In this case it is assumed that the default gateway
has a valid route to the destination.
In some cases, it is not practical to have just one default gateway (i.e. routed wireless networks with more than two 450U-
E routers; and in some cases when WDS router interfaces are used). If more than one
-
450U-E allows for up to 100
routing rules
to be configured. A routing rule specifies a destination network (or host) IP
address and the corresponding next-hop router that messages for the specified destination will be forwarded to. It is
assumed that the next-hop router (or
gateway
) will then deliver the data to the required destination (or forward it on to
another router that will).
The above network diagram illustrates a situation where routing rules may need to be configured. In this example, the
450U-E clients need only specify the Access Point as their default gateway (i.e. they require no routing rules to be
configured). However, for the Access Point to be able to deliver traffic to LAN B and LAN C it needs to have routing rules
configured that specify the respective 450U-E client/routers as next-hop routers (i.e. gateways) to networks B and C.
Note that devices on LAN A should specify the 450U-E Access Point as their default gateway. An
alternative to adding routing rules to the 450U-E in this example would be for each device on LAN A
that needs to communicate with LANs B and C to have independent routing rules specifying the
450U-E clients at B and C as gateways to those networks.
Figure 43 - Routing
Figure 42 - System Network Settings
