A network firewall receives a first incoming data packet that is transmitted from an outside network to a destination within an internal network secured by the network firewall. The network firewall is configured to restrict access to the internal network based on a set of network policies. The network firewall compares a current inbound traffic rate at the network firewall to a threshold inbound traffic rate, yielding a comparison. The network firewall determines, based on the comparison, that the current inbound traffic rate at the network firewall is greater than a threshold inbound traffic rate, and forwards the first incoming data packet to the destination within the internal network without inspecting the first incoming data packet based on the set of network policies.