Linux - NetworkingThis forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.
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I use the nmap command mainly to find MAC addresses of hosts across diff subnets. However it only seems to find the MAC if the host has netBIOS enabled, at least the way I run the command. And it does not work very well finding MAC's on hosts such as network printers. Is there an option or switch to force nmap to discover the MAC regardless of netBIOS on the hosts?
No, at IP & ethernet level there is no way for a mac address to traverse a router / firewall (a layer 3 boundary), nmap is getting that from higher level data as you are aware, but if there is no service like netbios, there's no way to get it.
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