1. 2004 @ COMM CCU Final Project Roaming in Wireless Driver 林益宏 黃立維 Jun,18 2004

2. 2004 @ COMM CCU IAPP RADIUS Server AP-1 AP-2 Bridge 網 際 網路網 際 網路 網 際 網路網 際 網路

3. 2004 @ COMM CCU Bridge mode Setting  Bridge Mode setting # brctl addbr br0 # brctl addif br0 eth0 # brctl addif br0 wlan0 # ifconfig eth0 192.168.2.45 # ifconfig wlan0 0.0.0.0 # ifconfig br0 140.123.113.41 up

4. 2004 @ COMM CCU hostapd Hostap –hostap-driver –hostapd –Hostap-utils –wpa-supplicant modify hostapd hostapd.conf

5. 2004 @ COMM CCU IAPP implement in hostap iapp.c iapp.h struct iapp_layer2_update { } – 在 layer2 作 update 之後就可以轉送 frame struct iapp_add_notify{ } –IAPP 有加入時的通知 iapp_receive_udp() – 當收到 IAPP 的 udp frame 就被呼叫 iapp_new_station() – 當新 AP association 後, 被呼叫去計算 session

6. 2004 @ COMM CCU Experment Environment Problem of experment Environment Notebook & Wi-fi phone – 透過 hostap 互通 – 在不同 channel 測試 IAPP

7. 2004 @ COMM CCU Experment A RADIUS Server AP-1 (hostap- channel”3”) AP-2 (hostap- channel”10”) Bridge 網 際 網路網 際 網路 網 際 網路網 際 網路

8. 2004 @ COMM CCU NoteBook(1/2)

9. 2004 @ COMM CCU NoteBook(2/2)

10. 2004 @ COMM CCU WiFi phone Zyxel Prestige 2000W Connect to hostap Handoff testing Use hostapd to start IAPP Demo

11. 2004 @ COMM CCU Experment B RADIUS Server AP-1 (hostap- channel”3”) AP-2 (hostap- channel”10”) Bridge 網 際 網路網 際 網路 網 際 網路網 際 網路 AP-3

12. 2004 @ COMM CCU Start hostap & IAPP Using interface wlan0ap with hwaddr 00:05:5d:da:ce:9a and ssid 'liwai‘ wlan0: RADIUS Authentication server 140.123.113.46:1812 IEEE 802.11f (IAPP) using interface eth0 and broadcast address 192.168.2.255 Flushing old station entries Deauthenticate all stations

13. 2004 @ COMM CCU IAPP-handoff message A. wlan0: STA 00:a0:c5:b7:6f:cd IEEE 802.11: authenticated wlan0: STA 00:a0:c5:b7:6f:cd IEEE 802.11: associated (aid 1) B. Received IAPP-ADD for STA 00:a0:c0:b7:6f:cd(seq#3870 from 192.163.2.45:3231) -------------------------------handoff---------------------------

14. 2004 @ COMM CCU IAPP-handoff message B. wlan0: STA 00:a0:c5:b7:6f:cd IEEE 802.11: authenticated wlan0: STA 00:a0:c5:b7:6f:cd IEEE 802.11: associated (aid 2) A. Received IAPP-ADD for STA 00:a0:c0:b7:6f:cd(seq#3874 from 192.163.2.46:3231) Removing STA 00:a0:c0:b7:6f:cd due to IAPP-ADD notification from 192.168.2.46

15. 2004 @ COMM CCU RADIUS server RADIUS Authentication client RADIUS Accounting client

16. 2004 @ COMM CCU Conclusion Hostap driver 已經實現最易的 IAPP 功能 Zxyzel 的 WiFi phone 仍有許多問題待改善

17. 2004 @ COMM CCU Thank you!!