On Thu, Oct 21, 2010 at 03:54:30PM +0000, Chaoxing wrote: > 1. Can any one here help me understand what mac80211 "AP/VLAN" mode is and how > it's used? I googled and could not find a good document on this. See dynamic-VLAN configuration in hostapd.conf. > 2. If it's meant for VLAN interface for multiple-SSID, how is the VLAN ID > configured? In theory, it could be used with multiple-SSID (i.e., mapping from SSID to VLAN), but there is no support for that in hostapd. The main use for this AP/VLAN interface is to get VLAN ID from a RADIUS server (or for more limited testing, from a local text file based on the station MAC address). > 3. In my AP with proprietary driver, there's multiple-SSID over the same BSSID. > (Meaning they share the same MAC address.) Each SSID is mapped to one VLAN. > Broadcasting SSID is disabled. > On receiving packet from clients, AP adds VLAN tag per SSID client associates. > On transmitting packet to clients, AP remove VLAN tag. > Is it possible to achieve the above functionality through existing open source > software(mac80211, iw, hostapd, radio driver, etc)? You can do similar setup with RADIUS-based VLAN ID allocation. Though, mac80211 will leave the VLAN tagging or other upper layer configuration to other parts of the networking stack (VLAN, bridge, IP routing). hostapd can set that up for the bridge and WLAN interfaces and if desired, you can then bind those to tagged ethernet interface. Since we support multi-BSSID configuration (which is superior to multi-SSID for most cases), I haven't seen enough justification to work with multi-SSID functionality. Do you have a use case that would need it or would the RADIUS-based VLAN ID allocation or multi-BSSID support address your needs? -- Jouni Malinen PGP id EFC895FA -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
