Siehe
https://github.com/jacksonliam/mjpg-streamer/blob/master/mjpg-streamer-experimental/plugins/output_http/README.md
Im output modul kann man mit -l die listen adresse setzen, also 127.0.0.1 stadt default 0.0.0.0
Das ist bei uns nicht einstellbar, du musst also das Startscript ändern. Bei unserem pi image ist das watchedCam in /usr/local/Repetier-Setup/bin
an dieser stelle
${MJPG_STREAMER} -i "${MJPG_PLUGIN_DIR}/input_uvc.so -d ${VIDEO} --fps ${FRAMERATE} -q ${WEBCAM_QUALITY} -r ${SIZE}${YUYV} ${WEBCAM_USB_PARAMS}" -o "${MJPG_PLUGIN_DIR}/output_http.so -p ${PORT} -w ${MJPG_WWW_DIR}"
also
${MJPG_STREAMER} -i "${MJPG_PLUGIN_DIR}/input_uvc.so -d ${VIDEO} --fps ${FRAMERATE} -q ${WEBCAM_QUALITY} -r ${SIZE}${YUYV} ${WEBCAM_USB_PARAMS}" -o "${MJPG_PLUGIN_DIR}/output_http.so -p ${PORT} -l 127.0.0.1 -w ${MJPG_WWW_DIR}"
