diff --git a/src/freedombone-utils-firewall b/src/freedombone-utils-firewall
index c80ba763..94f161f4 100755
--- a/src/freedombone-utils-firewall
+++ b/src/freedombone-utils-firewall
@@ -110,15 +110,13 @@ function enable_ipv6 {
     echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
 }
 
-function firewall_update_external_ip {
+function update_external_ip {
     ip_update_script=/usr/bin/externalipupdate
     echo '#!/bin/bash' >> $ip_update_script
     echo "existing_ip=\$(cat $CONFIGURATION_FILE | grep \"EXTERNAL_IPV4_ADDRESS=\" | head -n 1 | awk -F '=' '{print \$2}')'" >> $ip_update_script
     echo "curr_ip=\$(nslookup . $EXTERNAL_IP_LOOKUP_URL | grep Address | tail -n 1 | awk -F ' ' '{print \$2}')" >> $ip_update_script
     echo 'if [[ "$curr_ip" != "$existing_ip" ]]; then' >> $ip_update_script
     echo "  sed -i \"s|EXTERNAL_IPV4_ADDRESS=.*|EXTERNAL_IPV4_ADDRESS=\${curr_ip}|g\" $CONFIGURATION_FILE" >> $ip_update_script
-    echo "  iptables -t nat -D POSTROUTING -s \${curr_ip}/24 -o ${FIREWALL_EIFACE} -j MASQUERADE" >> $ip_update_script
-    echo "  iptables -t nat -A POSTROUTING -s \${curr_ip}/24 -o ${FIREWALL_EIFACE} -j MASQUERADE" >> $ip_update_script
     echo '  iptables-save > /etc/firewall.conf' >> $ip_update_script
     echo 'fi' >> $ip_update_script
 
@@ -126,35 +124,28 @@ function firewall_update_external_ip {
 }
 
 function firewall_disable_vpn {
-    read_config_param EXTERNAL_IPV4_ADDRESS
-    if [ ! $EXTERNAL_IPV4_ADDRESS ]; then
-        return
-    fi
-    sed -i '/externalipupdate/d' /etc/crontab
     iptables -D INPUT -i ${FIREWALL_EIFACE} -m state --state NEW -p udp --dport 1194 -j ACCEPT
     iptables -D INPUT -i tun+ -j ACCEPT
     iptables -D FORWARD -i tun+ -j ACCEPT
     iptables -D FORWARD -i tun+ -o ${FIREWALL_EIFACE} -m state --state RELATED,ESTABLISHED -j ACCEPT
     iptables -D FORWARD -i ${FIREWALL_EIFACE} -o tun+ -m state --state RELATED,ESTABLISHED -j ACCEPT
-    iptables -t nat -D POSTROUTING -s ${EXTERNAL_IPV4_ADDRESS}/24 -o ${FIREWALL_EIFACE} -j MASQUERADE
+    iptables -t nat -D POSTROUTING -s 10.8.0.0/24 -o ${FIREWALL_EIFACE} -j MASQUERADE
     iptables -D OUTPUT -o tun+ -j ACCEPT
     save_firewall_settings
+
     sed -i '/VPN=/d' $FIREWALL_CONFIG
 }
 
 function firewall_enable_vpn {
-    curr_external_ipv4_address=$(get_external_ipv4_address)
     iptables -A INPUT -i ${FIREWALL_EIFACE} -m state --state NEW -p udp --dport 1194 -j ACCEPT
     iptables -A INPUT -i tun+ -j ACCEPT
     iptables -A FORWARD -i tun+ -j ACCEPT
     iptables -A FORWARD -i tun+ -o ${FIREWALL_EIFACE} -m state --state RELATED,ESTABLISHED -j ACCEPT
     iptables -A FORWARD -i ${FIREWALL_EIFACE} -o tun+ -m state --state RELATED,ESTABLISHED -j ACCEPT
-    iptables -t nat -A POSTROUTING -s ${curr_external_ipv4_address}/24 -o ${FIREWALL_EIFACE} -j MASQUERADE
+    iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -o ${FIREWALL_EIFACE} -j MASQUERADE
     iptables -A OUTPUT -o tun+ -j ACCEPT
-    write_config_param EXTERNAL_IPV4_ADDRESS "$curr_external_ipv4_address"
     save_firewall_settings
 
-    firewall_update_external_ip
     echo "VPN=1194" >> $FIREWALL_CONFIG
 }