linux forward ip? mikrotik can ?

RouterOS General
1

Hello, I had a question, I was searching on the Internet when I came across IP forwarding in Linux, it was interesting to me and I tried it and they were connected to each other in two separate networks. Basically, every packet sent to the server one was automatically forwarded to the server two without tunneling ! , without being in the same gateway. Now the question is, how can this work be done with Mikrotik?

this command running in linux :
sysctl net.ipv4.ip_forward=1
iptables -t nat -A PREROUTING -p tcp --dport 22 -j DNAT --to-destination “server1”
iptables -t nat -A PREROUTING -j DNAT --to-destination “server2”
iptables -t nat -A POSTROUTING -j MASQUERADE

2

Congratulations, you just discovered src/dstnat, the hidden secret of RouterOS. :wink:

/ip firewall nat
add chain=dstnat protocol=tcp dst-port=22 action=dst-nat to-addresses="server1"
add chain=dstnat action=dst-nat to-addresses="server2"
add chain=srcnat action=masquerade

Don’t try #2 on remote routers, you wouldn’t like the result.

3

Yes, I know what src / dst nat is in Mikrotik, but I tried it and it didn’t work.

4

Well, you probably made some mistake. If you show us what exactly you did, someone may tell you what it was.

5

yes it was mistake , work prefectly , thank you bro :mrgreen: