Wifi tunneling

gistfile1.txt

In /etc/systemd/scripts I have "sim-network-env":
```
#!/bin/sh
# VDE network environment preparation script

case "$1" in
    start)
        echo -n "Starting VDE networks: "

        # If you want the tun kernel module to be loaded by the script
        # uncomment the following
        #modprobe tun 2>/dev/null
        #while ! lsmod | grep -q "^tun"; do echo Waiting for tun device; sleep 1; done

        # Start tap switches
        /usr/bin/vde_switch --tap tap0 --sock /tmp/vde.ctl --mode 660 \
            --group cmgauger --mgmt /tmp/vde.mgmt --mgmtmode 660 \
            --mgmtgroup cmgauger --daemon --numports 48
        /usr/bin/vde_switch --tap tap1 --sock /tmp/xnet.ctl --mode 660 \
            --group cmgauger --mgmt /tmp/xnet.mgmt --mgmtmode 660 \
            --mgmtgroup cmgauger --daemon --numports 24
        ;;
    stop)
        echo -n "Stopping VDE networks: "

        # Kill VDE switches
        pgrep -f vde_switch | xargs kill -TERM
        ;;
    restart|reload)
        $0 stop
        sleep 1
        $0 start
        ;;
    *)
        echo "Usage: $0 {start|stop|restart|reload}"
        exit 1
esac
exit 0
```

gistfile2.txt

  In /etc/systemd/system I have the service sim-network-env.service:
```
[Unit]
Description=Manage VDE Switches
Requires=network.target
Before=dnsmasq.service
After=network.target

[Service]
Type=oneshot
ExecStart=/etc/systemd/scripts/sim-network-env start
ExecStop=/etc/systemd/script/sim-network-env stop
RemainAfterExit=yes

[Install]
WantedBy=multi-user.target
```

gistfile3.txt

:
In /etc/network in the "interfaces" file are the lines:
```
# TAP interface for the VDE2 switch for simulators/VMs
allow-hotplug tap0
iface tap0 inet static
    address 172.16.184.1
    network 172.16.184.0
    netmask 255.255.252.0
    up iptables -t nat -A POSTROUTING -s 172.16.184.0/22 -o wlp24s0 -j MASQUERADE
    down iptables -t nat -D POSTROUTING -s 172.16.184.0/22 -o wlp24s0 -j MASQUERADE

allow-hotplug tap1
iface tap1 inet static
    address 192.168.47.1
    network 192.158.47.0
    netmask 255.255.255.0
    up iptables -t nat -A POSTROUTING -s 192.168.47.0/24 -o wlp24s0 -j MASQUERADE
    down iptables -t nat -D POSTROUTING -s 192.168.47.0/24 -o wlp24s0 -j MASQUERADE
    ```

gistfile4.txt

I do have these in my /etc/dnsmasq.d/ directory:

dnsmasq-tap0.conf:
```
interface=tap0
listen-address=172.16.184.1
bind-interfaces
server=172.16.184.1
domain-needed
bogus-priv
dhcp-range=172.16.186.0,172.16.186.255,255.255.252.0,12h
```

dnsmasq-tap1.conf:
```
interface=tap1
listen-address=192.168.47.1
bind-interfaces
server=192.168.47.1
domain-needed
bogus-priv
dhcp-range=192.168.47.100,192.168.47.200,255.255.255.0,12h
```