Thanks for information.
I can access CC6 and check by Web browser (Picture of Digi).
So, Is Network bridge need to Wireless access ?
I think to "wlan0 + iwconfig" can setup.
But, iwconfig does not set "Master mode".
And I append "hostapd" package.
"hostapd" can setup wlan0 to "Master mode".
PC can search CC6-AP, but it does not success the "ping".