diff --git a/docker-ingress-routing-daemon b/docker-ingress-routing-daemon
index aea9d96..29013cd 100755
--- a/docker-ingress-routing-daemon
+++ b/docker-ingress-routing-daemon
@@ -1,8 +1,8 @@
 #!/bin/bash
 
-VERSION=3.1.0
+VERSION=3.2.0
 
-# Ingress Routing Daemon v3.1.0
+# Ingress Routing Daemon v3.2.0
 # Copyright © 2020-2021 Struan Bartlett
 # ----------------------------------------------------------------------
 # Permission is hereby granted, free of charge, to any person 
@@ -44,9 +44,9 @@ quit() {
 
 detect_ingress() {
   read INGRESS_SUBNET INGRESS_DEFAULT_GATEWAY \
-    < <(docker inspect ingress --format '{{(index .IPAM.Config 0).Subnet}} {{index (split (index .Containers "ingress-sbox").IPv4Address "/") 0}}')
-    
-  [ -n"$INGRESS_SUBNET" ] && [ -n"$INGRESS_DEFAULT_GATEWAY" ] && return 0
+    < <(docker inspect ingress --format '{{(index .IPAM.Config 0).Subnet}} {{index (split (index .Containers "ingress-sbox").IPv4Address "/") 0}}' 2>/dev/null)
+
+  [ -n "$INGRESS_SUBNET" ] && [ -n "$INGRESS_DEFAULT_GATEWAY" ] && nsenter --net=/var/run/docker/netns/ingress_sbox iptables -L >/dev/null && return 0
   
   return 1
 }