Why is the game server (program) given the local ip of the router instead of the external ip?

Question

network hardware

Given: Game server and main server (programs). Both are on the same iron server.
LAN IP: 192.168.6.114
Router
WAN IP: xxx.xxx.xxx.xxx LAN
IP: 192.168.6.14
using external ip. Previously, on the standard firmware of the TL-WR1043ND router, the main server caught the game connection from an external ip and, therefore, transmitted a normal white ip to all Internet clients, through which they connected to the game server.
After changing the firmware on the router to Gargoyle 1.7.1 (similar to OpenWRT), now the game server connects to the main one and in the logs I no longer see the external address of the router, but its local 192.168.6.14.
How to fix the situation?
ps. I suspect that the case is hidden somewhere here

Chain zone_lan_postrouting (1 references)
 pkts bytes target     prot opt in     out     source               destination         
  150 14805 postrouting_lan_rule  all  --  any    any     anywhere             anywhere             /* user chain for postrouting */
    0     0 SNAT       tcp  --  *      *       192.168.6.0/24       192.168.6.114        tcp dpts:29339:30000 /* lfsp (reflection) */ to:192.168.6.14
    0     0 SNAT       udp  --  *      *       192.168.6.0/24       192.168.6.114        udp dpts:29339:30000 /* lfsp (reflection) */ to:192.168.6.14

Answer 1

In the end, something else went wrong even after rebooting the router, deleting the previous entry
and adding a new
earned.

Answer 2

Yes, it seems that this is the result of precisely these rules. What you want is called "hairpin nat", look for how it is done on this firmware.

Answer 3

well, so you have written "to: 192.168.6.14" - addresses from 192.168.6.0/24 going to 192.168.6.114 are translated to 192.168.6.14.
complete nonsense, but such is your translation rule.
habrahabr.ru/sandbox/18975 - well written what to do

Answer 4

this is when the tonsils are removed through the opus, that's exactly what happens. Definitely a dmz issue. which was before. and now she's gone.