diff --git a/setup/so-functions b/setup/so-functions
index d7252bb53..51f081b04 100755
--- a/setup/so-functions
+++ b/setup/so-functions
@@ -845,6 +845,7 @@ docker_registry() {
 	printf '%s\n'\
 		"{"\
 		"  \"registry-mirrors\": [ \"$proxy:5000\" ],"\
+		"  \"bip\": \"$(echo $DOCKERNET | awk -F'.' '{print $1,$2,$3,1}' OFS='.')/24,\"\
 		"  \"default-address-pools\": ["\
 		"    {"\
 		"      \"base\" : \"$DOCKERNET\","\
@@ -1146,7 +1147,7 @@ manager_global() {
 	fi
 
 	if [ -z "$DOCKERNET" ]; then
-        DOCKERNET=172.17.0.0/16
+        DOCKERNET=172.17.0.0
 	fi
 
 	# Create a global file for global values