 In contrast the inline solutions can be single-box solutions which act as internal firewalls for access-layer networks and enforce the policy.Out-of-band solutions have the advantage of reusing existing infrastructure; inline products can be easier to deploy on new networks, and may provide more advanced network enforcement capabilities, because they are directly in control of individual packets on the wire.However, there are products that are agentless, and have both the inherent advantages of easier, less risky out-of-band deployment, but use techniques to provide inline effectiveness for non-compliant devices, where enforcement is required.