I used to be able to change the MAC address of WAN interface by specifying
macaddr option in /etc/config/network. However, due to unknown reason,
this no longer works in snapshot builds. Here is how to achieve the same effect
using init scripts.
Recently, I've been working on dynamic channel selection based on channel
utilization. One problem I encountered is: how to switch both AP and devices'
channel without interrupting existing TCP connection.