Mesh firewall for babel protocol

src/freedombone-mesh-install

     echo 'ip6tables -A INPUT -p udp --dport 269 -j ACCEPT' >> $MESH_FIREWALL_SCRIPT
     echo 'iptables -A INPUT -p tcp --dport 138 -j ACCEPT' >> $MESH_FIREWALL_SCRIPT
     echo 'ip6tables -A INPUT -p tcp --dport 138 -j ACCEPT' >> $MESH_FIREWALL_SCRIPT
+
+    echo '# Babel' >> $MESH_FIREWALL_SCRIPT
+    echo 'iptables -A INPUT -p udp --dport 6696 -j ACCEPT' >> $MESH_FIREWALL_SCRIPT
+    echo 'ip6tables -A INPUT -p udp --dport 6696 -j ACCEPT' >> $MESH_FIREWALL_SCRIPT
     chmod +x $MESH_FIREWALL_SCRIPT
 
     echo '[Unit]' > $FIREWALL_FILENAME

src/freedombone-utils-mesh

     # OLSR2/MANET
     iptables -A INPUT -p udp --dport 269 -j ACCEPT
     iptables -A INPUT -p tcp --dport 138 -j ACCEPT
+    # Babel
+    iptables -A INPUT -p udp --dport 6696 -j ACCEPT
+    ip6tables -A INPUT -p udp --dport 6696 -j ACCEPT
 
 
     ip6tables -A INPUT -p ipv6-icmp -j ACCEPT
     # OLSR2/MANET
     ip6tables -A INPUT -p udp --dport 269 -j ACCEPT
     ip6tables -A INPUT -p tcp --dport 138 -j ACCEPT
+    # Babel
+    iptables -A INPUT -p udp --dport 6696 -j ACCEPT
+    ip6tables -A INPUT -p udp --dport 6696 -j ACCEPT
 
 
     # vpn over the internet
     # OLSR2/MANET
     iptables -D INPUT -p udp --dport 269 -j ACCEPT
     iptables -D INPUT -p tcp --dport 138 -j ACCEPT
+    # Babel
+    iptables -D INPUT -p udp --dport 6696 -j ACCEPT
+    ip6tables -D INPUT -p udp --dport 6696 -j ACCEPT
 
 
     ip6tables -D INPUT -p tcp --dport $TRACKER_PORT -j ACCEPT
     # OLSR2/MANET
     ip6tables -D INPUT -p udp --dport 269 -j ACCEPT
     ip6tables -D INPUT -p tcp --dport 138 -j ACCEPT
-
+    # Babel
+    iptables -D INPUT -p udp --dport 6696 -j ACCEPT
+    ip6tables -D INPUT -p udp --dport 6696 -j ACCEPT
 
     # vpn over the internet
     iptables -D INPUT -p tcp --dport 653 -j ACCEPT