There are 3 CUJO modes: Standby, DHCP and Bridge

* Both the DHCP and Bridge modes offer the same level of security, it just depends on each individual network layout.

* DHCP mode is used to assign IP addresses to the devices connected to your Network.

Standby mode;

In Standby mode, CUJO is just another device connected to your Router and it does not protect your network.

When CUJO is set in Standby mode, the CUJO Support team will be happy to help you with the CUJO configuration and modes remotely. Contact us at or 1-844-438-2856.

Direct / DHCP mode;

DHCP mode one of the two ways of connecting CUJO to your network.

For this mode, you will need to turn off DHCP Server on your Router, we also advise to go to our support page and type in the model of your router to find articles on how to set up CUJO with your specific router. The CUJO app will help you to change the DHCP settings automatically.

Before doing so, we will ask you to provide login credentials for your Router. Or you can choose to do it manually by following the step-by-step guide on your CUJO app or find more information on this setup manual. If you have any questions or difficulties please feel free to contact us at or 1-844-438-2856.

The below picture shows the most popular network environment with a single router.

In case your modem and Router are two separate devices, CUJO should be connected to the router.

CUJO will protect all of the Network devices connected to your router.

CUJO is connected through an ethernet cable to any free LAN ports on your router.

CUJO is a DHCP Server and DHCP Server is turned off in your Router.

Please refer to this manual to disable DHCP Server on your Router:

Unplugging CUJO:

Before unplugging make sure you have enabled the DHCP server on your Router. please refer to this manual to change DHCP Server settings on your Router with one exception - turn DHCP server on (not off).

Bridge mode;

Bridge mode is the second mode you can connect your CUJO. It usually is reserved for more complex networks, such as networks with multiple Access Points or switches.

The below picture shows an example of an advanced network with the first router acting as the DHCP Server and other switches (or access points, routers with DHCP turned off) for extra Access Points.

In Bridge mode, CUJO will protect devices that are "behind" CUJO or in other words everything that is downstream. That would mean that devices connected to an Access Point or a switch (or both) would be protected. Devices connected directly to your main Router will remain unprotected. To protect all devices on your Network using Bridge mode, you just simply need to connect your devices to the Access Point in the network rather than the main router.

CUJO is connected on the bottom Ethernet port (closer to the power plug) to your main Router with DHCP enabled.

Other switches or routers with disabled DHCP are connected to CUJO's top Ethernet port. If you are using Router with disabled DHCP then plug the cable into the LAN port instead of the WAN port.

Please refer to this manual to disable DHCP Server on your Router:

Unplugging CUJO:

Unplugging CUJO in Bridge mode from your network will not deadlock the network. Once CUJO is unplugged, you may need to restart your secondary switches or routers.

Advanced network example;


- The main Router will serve as NAT and the default DHCP server on your Network.

- Other routers on the network need to run in Access Point, Bridge, or Switch modes.

- We recommend VoIP and other real-time streaming sensitive devices be left outside CUJO’s scope since CUJO does not have QoS implementation.