How to find the gateway to the Internet in the local network?

Question

Computer networks

Saw such configuration in the organization one gateway with the second filter without.
Well, now I need to find all the gateways in the LAN.
How can a script or a program do this?

Answer 1

1. If you have been banned from something, then most likely it is not just like that. By trying to bypass such a restriction, you are most likely violating the internal access order.
2. If your admin's hands do not grow out of the wrong place, then the set of tolerances / prohibitions will be tied to the account, PC address, etc. Raising the second lock, just to let someone in without restrictions, is not at all necessary.
3. And finally, if despite both previous points you persist in your desire - write a script that will set all addresses from the address range of your network as the gateway address in turn and check access. In principle, nothing complicated.