config stun 'stun' option username 'tr069_stun' option password 'tr069_stun' option server_address 'stun.l.google.com' option server_port '19302' option min_keepalive '30' option max_keepalive '3600' #Log levels: Critical=0, Warning=1, Notice=2, Info=3, Debug=4 option loglevel '0' # option client_port 7547 #if client_port option is not set or < 0 then use a random port for connection request source port