Add files v1.0.0

1 files changed, 41 insertions, 0 deletions

diff --git a/fvpn_launch.sh b/fvpn_launch.sh
new file mode 100755
index 0000000..3b158de
--- /dev/null
+++ b/fvpn_launch.sh
@@ -0,0 +1,41 @@
+#!/bin/sh
+
+set -e
+
+TAP=fvpn0
+INTERNAL_IP=10.43.43.2/24
+INTERNAL_SRV_IP=10.43.43.1
+SERVER=vpn.example.org
+PORT=12345
+MAX_PKT_SZ=1440
+MTU=$(( $MAX_PKT_SZ - 46 ))
+
+mac=$(awk 'BEGIN{
+               srand();
+               printf("ae:ae:ae:%02x:%02x:%02x",
+                       rand()*256, rand()*256, rand()*256);
+           }')
+
+ip tuntap add $TAP mode tap user root
+ip addr add $INTERNAL_IP dev $TAP
+ip link set $TAP mtu $MTU
+ip link set $TAP address $mac
+ip link set $TAP up
+
+./fatvpn $TAP $SERVER $PORT
+
+# route ALL traffic to vpn
+# do not forget to configure your server:
+# 1) ip forwarding on
+# 2) masquarade
+# 3) firewall forward rules configured/disabled
+if [ "$1" = "all" ]; then
+	srv_ip=$(dig +short $SERVER | head -1)
+	gw=$(ip route get $srv_ip | head -1 | awk '{print $3}')
+	ip route add $srv_ip/32 via $gw
+	ip route add   0.0.0.0/1 via $INTERNAL_SRV_IP
+	ip route add 128.0.0.0/1 via $INTERNAL_SRV_IP
+fi
+
+ping -c3 $INTERNAL_SRV_IP
+