2Point-to-Multipoint WDS LinkThe following example shows point-to-multipoint WDS links configured between multiple access points.WDS Security and Spanning Tree SupportFor added security, the AP 8250 supports AES encryption over the WDS link. Additionally, Spanning TreeProtocol (STP) support prevents loops from being formed on the network. For more information on theseitems, see the Wireless LAN Access Points User Guide.Configuring WDS BridgingWDS Bridging can be configured in numerous ways. This section describes two common installationscenarios and the equipment required to complete the configurations: Remote building wireless access with the AP8850 Remote building wireless access with the AP8250 and 802.11g Upgrade KitConfiguration GuidelinesBefore configuring the WDS settings, review the following guidelines: The WDS link can be set up between 3Com access points only. The pair of access points to be configured with a WDS link must be set to the sameradio channel and SSID, and the link must be set up between 802.11a radios or802.11g radios (that is, 802.11a to 802.11a or 802.11g to 802.11g). The access points must be configured with security and standard access point settingsbefore configuring the WDS link(s). A Root Bridge can have a maximum of six Child Bridges assigned to it. A Child Bridge can have a maximum of five Child Bridges assigned to it.Antenna GuidelinesThe 802.11a and 802.11g radios can be used with the following antennas in a bridging application: 802.11a radio: 3CWE591, 3CWE598, 3CWE596 802.11g radio: 3CWE491, 3CWE495, 3CWE498Wireless DesktopsWireless DesktopsPoint-to-Point WDS LinkWDS LinkWDS LinkWireless Desktops