diff --git a/sio1/sisr1/scripts/nat.sh b/sio1/sisr1/scripts/nat.sh
new file mode 100755
index 0000000..0bc9e64
--- /dev/null
+++ b/sio1/sisr1/scripts/nat.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+echo 1 | sudo dd of=/proc/sys/net/ipv4/ip_forward
+iptables -t nat -A POSTROUTING -o enp0s3 -j MASQUERADE
+iptables -t nat -A POSTROUTING -o enp0s8 -j MASQUERADE