I understand that something like this:
<source IP in packet from internet (0.0.0.0 for all)>:<destination Port> <new dest. IP (0.0.0.0 for fritzbox itself)>:<new dest Port>
93.186.xx is my public ip on the job and I just want him to open access. 0.0.0.0 I've tried, but failed too. Therefore, it...