Hi, I have a question, how does Linux recognize that it has entered a 802.11 network? and how does it acquire an IP address via DHCP automatically? I've successfully configured the DHCP server and the mobile host work together, however I want to figure out the detailed procesures carried out, such as how scan/authentication/association is triggered, how dhclient is triggered? My machine is a RH9 with kernel 2.4.26 or 2.6.7, the wireless adapter is Linksys WUSB11 v2.8 (driver from http://at76c503a.berlios.de/). Any information'd be appreciated. suihong - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html