diff --git a/README_old.md b/README_old.md
index e4eb817..0f02585 100644
--- a/README_old.md
+++ b/README_old.md
@@ -193,3 +193,12 @@ sudo systemctl enable --now openvpn-client@client
 ```
 ip -details link show dev tun0 | grep dco
 ```
+```
+iptables -t nat -A PREROUTING -p tcp --dport 222 -j DNAT --to-destination 157.22.241.59:22
+```
+```
+iptables -t nat -A PREROUTING -p udp --dport 1443 -j DNAT --to-destination 157.22.241.59:1443
+```
+```
+iptables -t nat -A POSTROUTING -d 157.22.241.59 -o ens3 -j MASQUERADE
+```
\ No newline at end of file