diff --git a/ipsec/env.sh b/ipsec/env.sh
index cdb0289..968d580 100755
--- a/ipsec/env.sh
+++ b/ipsec/env.sh
@@ -44,7 +44,7 @@ LOCALMASK="/24"
 
 LOCALIPMASK="$LOCALIP$LOCALMASK"
 
-IP=$(ip addr | grep 'inet' | grep -v inet6 | grep -vE '127\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | grep -o -E '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | head -1)
+IP=$(ip addr | grep 'inet' | grep -v inet6 | grep -vE '(127|10|100|172|192)\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | grep -o -E '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | head -1)
 if [[ "$IP" = "" ]]; then
 	IP=$(wget -4qO- "http://whatismyip.akamai.com/")
 fi
diff --git a/openvpn/env.sh b/openvpn/env.sh
index 26a726e..33120bd 100755
--- a/openvpn/env.sh
+++ b/openvpn/env.sh
@@ -42,7 +42,7 @@ LOCALMASK="/24"
 
 LOCALIPMASK="$LOCALIP$LOCALMASK"
 
-IP=$(ip addr | grep 'inet' | grep -v inet6 | grep -vE '127\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | grep -o -E '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | head -1)
+IP=$(ip addr | grep 'inet' | grep -v inet6 | grep -vE '(127|10|100|172|192)\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | grep -o -E '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | head -1)
 if [[ "$IP" = "" ]]; then
 	IP=$(wget -4qO- "http://whatismyip.akamai.com/")
 fi
diff --git a/pptp/env.sh b/pptp/env.sh
index 45f5f7f..1f592db 100755
--- a/pptp/env.sh
+++ b/pptp/env.sh
@@ -37,7 +37,7 @@ LOCALMASK="/24"
 
 LOCALIPMASK="$LOCALIP$LOCALMASK"
 
-IP=$(ip addr | grep 'inet' | grep -v inet6 | grep -vE '127\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | grep -o -E '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | head -1)
+IP=$(ip addr | grep 'inet' | grep -v inet6 | grep -vE '(127|10|100|172|192)\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | grep -o -E '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | head -1)
 if [[ "$IP" = "" ]]; then
 	IP=$(wget -4qO- "http://whatismyip.akamai.com/")
 fi