How to get the hotspot diagram of a network

I wanna write some code to get the hotspot diagram of a LAN(the topologic of
the network). The codes will run on a the gateway of the LAN. Should I trace
all the route path?

Thx very much.

Hi there

What you you mean when you say 'hotspot' of the LAN?

I no that you mean the topology of the network but I'm really unsure of what
your asking here.

Could you be more specific and gental on your wording?

Cheers