IPSec and Network Security Essay

Some arguments Tina might use are that IPSec secures all data that travels between two points without an association to any specific application (Tunnel Vision). When connected on an IPsec VPN, the client computer is a full member of the corporate network, being able to see and potentially access the entire network. With most IPSec VPNs, they require third-party hardware and/or software. In order to access an IPSec VPN, the workstation or device in question must have an IPSec client software application installed. This is a pro because the third party must have it properly configured since the company is paying for its services and means an extra layer of security since the company should be monitoring their program. . These would be additional hurdles that an attacker would have to get through before gaining access to your network (Tony,

Networking is part of our everyday lives now. Weather is us using our phones, computer, using GPS for directions, watching 3D movies and TV’s or in our work environments. Network Security has become search a big issue since our day to day live started to be more involve with us. These problems involve in all type of shapes and forms where some of these issues are cyber attacks, physical attacks, or abuse of policies. People are really exposed due to the amount of internet activities we have going on in most of our networks. There are two fundamentally different when it comes to networking, the data networks and the synchronous network comprised of switches. With that being said there are also

In this modern day and age of computing, networks are a huge part of IT. It is important now more than ever that data sent over any network, whether it be a LAN (Local Area Network) or WAN (Wide Area Network; The Internet) is kept safe, private (when required) and uninterrupted in

Encrypted Outbound Sessions – an encrypted interactive session by an adversary which takes advantage of less restrictive outbound connections

To reduce the risk of these types of attacks, routers should be hardened, packet filtering controls should be used and routing information should be controlled.

Security is the heart of internetworking. The world has moved from an Internet of implicit trust to an Internet of pervasive distrust. In network security, no packet can be trusted; all packets must earn that trust through a network device’s ability to inspect and enforce policy. Clear text (unencrypted data) services represent a great weakness in networks. Clear text services transmit all information or packets, including user names and passwords, in unencrypted format. Services such as file transfer protocol (FTP), email, telnet and basic HTTP authentication all transmit communications in clear text. A hacker with a sniffer could easily capture user names and passwords from the network without anyone’s knowledge and gain administrator access to the system. Clear text services should be avoided; instead secure services that encrypt communications, such as Secure Shell (SSH) and Secure Socket Layer (SSL), should be used. The use of routers and switches will allow for network segmentation and help defend against sniffing

Encapsulating Security Payload (ESP) is used in the Hamachi to keep the data transmission security. Encapsulating Security Payload (ESP) is a member of the IPsec protocol suite. In IPsec it provides origin authenticity, integrity and confidentiality protection of packets. ESP also supports encryption-only and authentication-only configurations, but using encryption without authentication is strongly discouraged because it is insecure [8].

With admirable foresight, the Internet Engineering Task Force (IETF) initiated as early as in 1994, the design and development of a suite of protocols and standards now known as Internet Protocol Version 6 (IPv6), as a worthy tool to phase out and supplant IPv4 over the coming years. There is an explosion of sorts in the number and range of IP capable devices that are being released in the market and the usage of these by an increasingly tech savvy global population. The new protocol aims to effectively support the ever-expanding Internet usage and functionality, and also address security concerns.

IP Encapsulating Security Payload (ESP), IP protocol 50, protects datafrom viewing by third parties, and provides the same features as AH.

Douligeris, C., Serpanos, D. (2007). VPN Benefits. Network Security: Current Status and Future Directions. John Wiley and Sons

Technologies and processes not within the scope are; the coordination for Type III and above encryption and keying material and coordination for National Security Agency (NSA) communications security (COMSEC) requirements. New networking or information systems technology will not be introduced into the scope of this project unless it provides necessary network security features for the prescribed protection.

Undoubtedly, this paper will generate network information, diagrams, and/or tables; accordingly, these are all included in the Appendix section of the paper. Moreover, the training, vulnerability assessment, and SAQ results are also included as an Appendix in the final paper. Finally, fearing disclosure of proprietary information that could compromise network security, all project data are scrubbed and sanitized to remove sensitive information.

The Ethernet switches will guarantee a LAN connection and will be configured to achieve the highest availability. At the New York and Satellite branches, one device with be connected to the Internet through either A Digital Subscriber Line (DSL) modem while the second device is connected through a private link to ensure a redundant network connection and avoid outages (Glass, 2004). The connections from the branches to the headquarters will be through the use of a private or leased line. This connection will require two IPSec tunnels that permanent connect to the two branch offices. In the tunnel mode, IP packets will be protected between gateways and will encrypt traffic (Firewall.cx, 2015). It is recommended that have two IPSec tunnels to each branch location to ensure a secure connection. The internet connectivity will be over the broadband Internet

1) Set of protocols developed to support the secure exchange of packets IPv4 and IPv6

(Public Key Infrastructure Roadmap for the Department of Defense, Version 5.0, 18 Dec 2000, p.6) The overall IA posture was balanced on the DoD’s Defense in layering strategy allowing the use of multiple solutions of varying assurance levels in which to prevent or contain the consequence of a breach of security. The Defense in layering strategy coined Defense in Depth, consists of five layers: Defense of Computing Environments including the hosts, servers, applications, and operating systems used within DoD local area networks (LANs), Defense of Enclave Boundaries/External Connections at which DoD LANs connect to the wide area networks (WANs) by deploying boundary protection measures to control and monitor access to the internal LANs, Defense of Networks and Infrastructure, including the WANs that are used to interconnect DoD systems and those of its allies and business partners, to ensure the confidentiality of DoD communications and protection against Denial of Service attacks that could disrupt DoD’s ability to communicate prior to or during operational deployments, Attack Sensing, Warning, and Response to protect, analyze, and respond to unauthorized access, intrusions, and cyber attacks at local, regional, and national levels, and Key Management Infrastructure (KMI) services including key management for DoD traditional and more recently public key systems, as well as physical products such as codebooks and authenticators. A component of the KMI is Public Key Infrastructure (PKI), which consists of products and services, which provide and manage X. 509 certificates for public key cryptography. This paper