I need confirmation on a question regarding layer 2 security. I've been doing research and I just need to know that I understand it correctly.
Basically, if you have a LAN with a few machines connected to a switch, and those machines are broadcasting LLDP or ARP or something like that, is it true that those broadcasted packets will never escape the LAN (sans faulty software in the switch or machines and things of that nature)?
I know this is a basic question, but I haven't been able to find a direct answer to it and am hoping someone could just give a really brief one. Thanks!