DHCP off but still dynamic addressing I want my network to handle only static addresses. Consequently i turned the DHCP server off on my Edge router. The problem is that if someone tries to connect with automatically obtaining parameters, he gets everything (ip, net mask,gateway,...). Since the DHCP server is inactive, it shouldn't be possible, should it? Can anyone help me in preventing automatically giving someone connexion parameters? i don't want any dynamic addressing on my network (restricted access) By the way this is my router model : **Ubiquiti EdgeMax EdgeRouter Lite ERLite-3 512MB Memory 3 Ethernet Ports Router**

1. Killing DHCP does **not** make a network secure (or "restricted") against people connecting to it. Look at something like 802.1X and Remote Authentication Dial In User Service RADIUS for that application. It's trivial for an attacker with physical access to connect to the network, gain the general parameters by examination, and assign themselves an address.
2. You evidently have more than one DHCP server on the network, if you turned one off and one is still running.