i-bekçi can work in transparent mode as a bridge. Thus it may protect while staying invisible.

It may operate without being a hop point of the traffic passing through.

i-bekçi may combine the interfaces as if they are in the same network, without any need of a swithcing device.

This provides adding a new security device to the network without any need of a change in network structure

While working in transparent mode, although it doesn't possess an IP, it operates as a fully functional firewall.