diff --git a/howto.md b/howto.md
index 9cd94385e7a27fd86b06991454edfca7e72663f7..6e2be07710682876f304d88b888109b21bab5bd5 100644
--- a/howto.md
+++ b/howto.md
@@ -6,8 +6,12 @@ iptables:
 
 ```
 echo 1 > /proc/sys/net/ipv4/ip_forward
-iptables -t nat -A PREROUTING -p tcp --dport 11191 -j DNAT --to-destination 1.1.1.1:1111
-iptables -A FORWARD -p tcp -d 1.1.1.1 --dport 1111 -j ACCEPT
+
+iptables -t nat -A PREROUTING -p tcp --dport 11192 -j DNAT --to-destination 1.1.1.1:25551
+iptables -t nat -A PREROUTING -p udp --dport 11192 -j DNAT --to-destination 1.1.1.1:25551
+iptables -A FORWARD -p tcp -d 1.1.1.1 --dport 25551 -j ACCEPT
+iptables -A FORWARD -p udp -d 1.1.1.1 --dport 25551 -j ACCEPT
+
 iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
 ```