The Internet of Things (IoT) has particular applications in public safety as well as other domains such as smart cities, health monitoring, smart homes and environments, smart industry, and various types of pervasive systems. The attacker can simply attack the IoT device in such applications, because it is randomly distributed, dynamic topology and not reliable due to energy and communication limitation. Moreover, the threat to confidentiality and security is increasing as the number of devices connected in IoT is increasing. As the numbers of devices connected to the Internet is expanding, the threat to confidentiality and security is increasing. The aim of this paper is design a typical network security model for cooperative virtual networks in the IoT era. This paper presents and discusses network security vulnerabilities, threats, attacks and risks in switches, firewalls and routers, in addition to a policy to mitigate those risks. The paper provides the fundamentals of secure networking system including firewall, router, AAA server and VLAN technology. It presents a novel security model to defense the network from internal and external attacks and threats in the IoT Era. A testbed is built to investigate the proposed model, and the performed assessment show an effective security performance with a good network performance.

中文翻译：

---

物联网时代协同虚拟网络的新型安全模型

物联网 (IoT) 在公共安全以及其他领域（例如智能城市、健康监测、智能家居和环境、智能工业以及各种类型的普及系统）中具有特殊应用。攻击者可以简单地攻击此类应用中的物联网设备，因为它是随机分布的，动态拓扑结构，并且由于能量和通信限制而不可靠。此外，随着物联网中连接的设备数量的增加，对机密性和安全性的威胁也在增加。随着连接到 Internet 的设备数量不断增加，对机密性和安全性的威胁也在增加。本文旨在为物联网时代的协作虚拟网络设计一个典型的网络安全模型。本文介绍并讨论了网络安全漏洞、威胁、交换机、防火墙和路由器中的攻击和风险，以及减轻这些风险的策略。论文提供了安全网络系统的基本原理，包括防火墙、路由器、AAA服务器和VLAN技术。它提出了一种新颖的安全模型，可以在物联网时代保护网络免受内部和外部攻击和威胁。建立了一个测试平台来研究所提出的模型，并且执行的评估显示了有效的安全性能和良好的网络性能。