diff --git a/files/runScanner.sh b/files/runScanner.sh
index 0d0047b..f3cc75c 100755
--- a/files/runScanner.sh
+++ b/files/runScanner.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+echo "setting up user & logfile:"
 if [[ -z ${UID} ]]; then
 	UID=1000
 fi
@@ -13,15 +14,40 @@ touch /var/log/scanner.log
 chown $USERNAME /var/log/scanner.log
 env > /opt/brother/scanner/env.txt
 chmod -R 777 /opt/brother
+echo "-----"
 
+echo "setting up interface:"
 subnet=$(echo $IPADDRESS | sed 's/\([0-9]*\.[0-9]*\.\)[0-9]*\.[0-9]*/\1/')
 interface=$(ip addr show | grep -B10 $subnet | grep mtu | tail -1 | sed 's/[0-9]*: \(.*\): .*/\1/')
+sed -i 's/^eth=.*//' /opt/brother/scanner/brscan-skey/brscan-skey.config
+# if found an interface for scanner subnet. Will use this to contact scanner.
+if [[ -z "$interface" ]]; then
+	# if scanner subnet (roughly) not found in interfaces, assuming network_mode="host" is not set and using Docker default interface. 
+	interface="eth0"
+fi
 echo "eth=$interface" >> /opt/brother/scanner/brscan-skey/brscan-skey.config
 echo "using interface: $interface"
+echo "-----"
+
+echo "setting up host IP:"
+sed -i 's/^ip_address=.*//' /opt/brother/scanner/brscan-skey/brscan-skey.config
+if [[ -z "$HOST_IPADDRESS" ]]
+	echo "no host IP configured, using default discovery"
+else
+	echo "ip_address=$HOST_IPADDRESS" >> /opt/brother/scanner/brscan-skey/brscan-skey.config
+fi
+echo "-----"
+
+echo "whole config:"
+cat /opt/brother/scanner/brscan-skey/brscan-skey.config
+echo "-----"
 
+echo "setting up scanner:"
 su - $USERNAME -c "/usr/bin/brsaneconfig4 -a name=$NAME model=$MODEL ip=$IPADDRESS"
 su - $USERNAME -c "/usr/bin/brscan-skey"
+echo "-----"
 
+echo "setting up webserver:"
 if [ "$WEBSERVER" == "true" ]; then
 	echo "starting webserver for API & GUI..."
 	{
@@ -63,7 +89,10 @@ if [ "$WEBSERVER" == "true" ]; then
 	sed -i "s/server.port\W*= 80/server.port = $PORT/" /etc/lighttpd/lighttpd.conf
 	/usr/sbin/lighttpd -f /etc/lighttpd/lighttpd.conf
 	echo "webserver started"
+else
+	echo "webserver not configured"
 fi
+echo "-----"
 
 echo "capabilities:"
 scanimage -A