1. Integrating WLAN & MANET (Implementation Document) Computer Science 20001168 박승규 ANMC lab, 서영주 교수님

2. 2 Implementation Wrecks.  Gateway Double Connection is beyond our hands at this time. The standard of MIPv4 forbids this behavior, but at first we have thought it can be achieved by modifying a driver. Everything vital is in the firmware which is untouchable. Investigated Devices: Hermes-backed, Prism2-backed devices.  A bare way solving this is a sequential connection. The delay in the user application is up to 0.3~0.4 sec, surely out of our interests.

3. 3 Design – Enhanced Auto Mode Switch(1/2)

4. 4 Design – Enhanced Auto Mode Switch(2/2)

5. 5 About Implementation. About Infrastructure Device: Lucent Technologies. Orinoco silver 11Mbit/s (PCMCIA) Driver: Orinoco-0.13e Driver Patch: orinoco-monitor-patch Kernel: Linux Kernel 2.4.24 Linux Box: IBM T20 notebook 1. Modifying the driver The added data structure, “struct mode_switch_info” At the card insertion time: put the device into mode switch mode In the interrupt handler, run the algorithm choosing a proper mode Adding two Private Commands for the daemon

6. 6 About Implementation. 2. A daemon’s support Three thread for each function, infra thread, ad-hoc thread, scan thread

7. 7 Implementation Documents. Four documents are published. Orinoco Device Driver Juggling on Gentoo An Essay about Linux-WLAN code A Design Paper of 'Auto Mode Switch' for mixing WLAN and MANET Auto Mode Switch: it was implemented in this way

8. 8 END