Elpro Technologies 450U-E Wireless Ethernet Modem & Device Server User Manual
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www.cooperbussmann.com/wirelessresources
Rev Version 1.0.12-Beta7
IP Subnet Mask
The IP network mask of the 450U-E module. This should be set to appropriate
subnet mask for your system (Typically 255.255.255.0). In Router mode each
interface will have its own Netmask.
Default Gateway
This is the address that the device will use to forward messages to remote hosts that
are not connected to any of the local bridged network (Ethernet or Wireless). This is
only required if the wired LAN has a Gateway unit which connects to devices beyond
the LAN - for example, Internet access. If there is no Gateway on the LAN, set to the
same address as the Access Point -
section 3.13 IP Routing
Save Changes
Save changes to non-volatile memory. The module will need to be restarted before
the changes take effect.
Save Changes and Reset.
Save settings to non-volatile memory, and reboot 450U-E. Once the module has
completed the reboot sequence, all changes are in effect.
Spanning Tree Protocol Algorithm
3.7
network loops and provide redundant paths in networks. To enable tick
the STP box on the
configuration page.
For example, consider this network with a redundant wireless link. If the
bridge Spanning Tree Protocol is enabled, one of the two wireless links
will be disabled - that is, all wireless data will be transferred by one link
only. If the active link fails, the other link will automatically start
transferring the wireless data.
The Spanning Tree Protocol implemented is IEEE 802.1d compatible. The algorithm forms a loop-free network by
blocking traffic between redundant links in the network. These blocked links are placed in a standby condition, and may
be automatically enabled to repair the network if another link is lost. The Spanning Tree Algorithm maintains a single path
between all nodes in a network, by forming a tree-like structure. The Bridge Priority determines where the node sits in the
tree. A Bridge configured with the lowest priority (0) will become the root node in the network, and will direct traffic
between each of its branches.
The root node is typically the
unit that handles the majority of traffic in the network. The 450U-E is configured with a Bridge Priority of 32768 by
default. The intention is to reduce traffic that the 450U-E must handle, by placing it at the branch level in the network tree.
As a branch, the 450U-E
There is some overhead in maintaining a network utilizing the Spanning Tree Algorithm. Users wishing to increase their
throughput, at the expense of redundancy should disable Spanning Tree. The Spanning Tree Protocol can be configured
on the
Repeaters
configuration page.
Security Menu
3.8
Select the Radio Encryption level from the drop down menu on the Network page and
button.
Available encryption levels are:
None
WEP128 (Wired Equivalent Privacy)
WPA2-PSK (AES) (Wi-Fi Protected Access 2)
WPA-Enterprise (802.1x)
When selection has been made, it is important to save the configurat
Figure 29 - Spanning Tree Protocol