Need help with Source Dedicated server behind NAT

RouterOS General
1

I have a Source Dedicated server (half-life 2, TeamFortress2, CS:S) running on a machine behind My mikrotik router (x86).

I I have the port forwarding configured, the server is able to register to the master servers, but no-one is able to connect from outside My network.

Has anyone had success with running a surce dedicated server behind NAT? if so, what did you do?

2

please post your config. seems like port forwarding is still not configured

3

From My router:

16 ;;; HLDS
chain=dstnat action=dst-nat to-addresses=172.16.100.60 to-ports=27000-27050 protocol=udp dst-address=24.143.76.154 ipv4-options=strict-source-routing
dst-port=27000-27050 out-bridge-port=bridge1

17 ;;; HLDS
chain=dstnat action=dst-nat to-addresses=172.16.100.60 to-ports=27000-27050 protocol=tcp in-interface=external dst-port=27000-27050

4

remove ‘to-ports’ from both rules and ‘ipv4-options, out-bridge-port’ from the first rule

5

Hello all.
I have same problem:
I am trying to run a HLDS ( gold ) server behind NAT, but cannot manage to make it so people outside my local network connect to the server, can someone help me figure it out?

Server is runing on proxmox vm ubuntu and it has set static ip

server is running on udp port 27015. I manage to make a connection trough this port using netcat and send messages between vm and computer outside my local network, but still cannot connect to the server troug the game

This is my NAT rule

;;; defconf: masquerade
      chain=srcnat action=masquerade out-interface-list=WAN ipsec-policy=out,none
      
;;; test-sfudp
      chain=dstnat action=dst-nat to-addresses=192.168.88.10 to-ports=0 protocol=udp in-interface-list=WAN dst-port=27015 log=no log-prefix=""
6

Yeah, been there—running a Source Dedicated server behind NAT can feel like black magic sometimes. I had similar issues and it turned out to be a mix of port forwarding and firewall rules messing things up. Double-check if your Mikrotik router has hairpin NAT enabled and make sure the right ports (like 27015-27030) are open for both TCP and UDP. If all else fails and you’re tired of the router gymnastics, you might wanna save yourself the headache and go with unlimited dedicated server hosting from HostNoc—it’s way easier and saves your sanity.