The other day the network had an instance where someone plugged in a netgear router into a port on vlan X. This obviously started answering DHCP discoveries from clients with its offers.
My question is this...If the client attempted to get an address on a vlan where the helper address was pointing to the correct DHCP server on vlan Y, why did this rogue server cause a DOS on vlan X?
The lease time did not expire on the server, and the client typically remembers the address it used last
The DHCP servers are on vlan Y, is it because the rogue server was plugged into vlan x ( walong with the clients)which has closer proximity to the clients, obviously???
Thanks in advance!!!