Solution to detect non-standard server or workstation on our LAN
Hi, I am looking for a solution where we are able to detect any non-standard server or workstation on our LAN which has DHCP enabled. Most of our servers are located in the server farm and such, are fully patched from possible virus attacks. However, some users (frustrated developers) will insist on turning their workstations or other devices as Microsoft servers and use DHCP to receive IP address.
Is there any good scanning tools (non intrusive) out there which will help detect these "rogue" devices and remove their network access ?