Hi dymek, i am from PL too...
I am really impressed by seeing how skilled You are, especially you said that you have only 2 years of experience...
Can You accept a challenge and answer my 1 question ? ;P
It is about Networking...
Data:
2 Routers;
2 Computers;
3 Ethernet Cables;
Router1(R1) is connected to Router2(R2) - Cascaded "LAN to WAN"
Computer1(C1) is connected to R1 by cable and gets IP from DHCP server of R1.
Computer2(C2) is connected to R2 by cable and gets IP from DHCP server of R2.
R1 IP = 192.168.1.1
R2 IP = 192.168.2.1
C1 IP = 192.168.1.100
C2 IP = 192.168.2.100
Situation :
When You sit at C2, You can access WebUI of R1 (by entering R1 IP in Web Browser).
but..
When You sit at C1, You cannot reach R2 WebUI (by entering R2 IP in Web Browser).
The problem:
Q: How You make possible C1 to access WebUI of R2 ?
I can provide additional information or tips if needed
Regards.