scholarly journals Implementation of Network Address Translation Using TCP/IP Model In Internet Communication System

2020 ◽  
pp. 447-453
Author(s):  
Ei Ei khaing ◽  
Mya Thet Khaing ◽  
Akari Myint Soe ◽  
Shwe Sin Myat Than
Keyword(s):  
Resource Sharing ◽  
Transmission Control Protocol ◽  
Internet Protocol ◽  
Data Communication ◽  
Basic Unit ◽  
The Internet ◽  
Internet Communication ◽  
Network Address Translation ◽  
Traffic Routing ◽  
Address Translation

Nowadays, many people will be used internet that for their work, communication, education, economic and organization necessary that is used today. Network address translation (NAT) is a method of remapping an IP address space into another by modifying network address information in the IP header of packets while they are in transit across a traffic routing device. A network is a system of hardware and software, put together for the purpose of communication and resource sharing. A network includes transmission hardware devise to interconnect transmission media and to control transmissions and software to decode and format data. The Internet protocol suite is the computer networking model and set of communications protocols used on the Internet and similar computer networks. Knowledge on how the internet is able to communicate with internet users is a mystery to some people. Internet communication need to be TCP/IP protocol which means that TCP is Transmission Control Protocol, or what is sometimes simply used to refer to Internet Protocol, is the basic unit for communication on the internet. This can also be applied to private internet, like Ethernet and so on. Despite TCP and IP being used interchangeably, there is a slight difference between the two in relation to the roles they play IP is directly responsible for obtaining internet addresses and then it is the work of TCP to deliver the data obtained to the addresses achieved by IP. TCP/IP provides end-to-end connectivity specifying how data should be packetized, addressed, transmitted, routed and received at the destination. This paper aim is described operation and models of TCP-IP suite in data communication network.

scholarly journals NAT++: An Efficient Micro-NAT Architecture for Solving IP-Spoofing Attacks in a Corporate Network

Electronics ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1510 ◽  
Author(s):  
Prakash Veeraraghavan ◽  
Dalal Hanna ◽  
Eric Pardede
Keyword(s):  
Internet Protocol ◽  
The Internet ◽  
Network Address Translation ◽  
Ip Address ◽  
Address Translation ◽  
Corporate Network ◽  
Ip Spoofing ◽  
Simulation Results ◽  
Ip Packet

The Internet Protocol (IP) version 4 (IPv4) has several known vulnerabilities. One of the important vulnerabilities is that the protocol does not validate the correctness of the source address carried in an IP packet. Users with malicious intentions may take advantage of this vulnerability and launch various attacks against a target host or a network. These attacks are popularly known as IP Address Spoofing attacks. One of the classical IP-spoofing attacks that cost several million dollars worldwide is the DNS-amplification attack. Currently, the availability of solutions is limited, proprietary, expensive, and requires expertise. The Internet is subjected to several other forms of amplification attacks happening every day. Even though IP-Spoofing is one of the well-researched areas since 2005, there is no holistic solution available to solve this problem from the gross-root. Also, every solution assumes that the attackers are always from outside networks. In this paper, we provide an efficient and scalable solution to solve the IP-Spoofing problem that arises from malicious or compromised inside hosts. We use a modified form of Network Address Translation (NAT) to build our solution framework. We call our framework as NAT++. The proposed infrastructure is robust, crypto-free, and easy to implement. Our simulation results have shown that the proposed NAT++ infrastructure does not consume more than the resources required by a simple NAT.

scholarly journals Performance Analysis for Wireless Networks: An Analytical Approach by Multifarious Sym Teredo

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
D. Shalini Punithavathani ◽  
Sheryl Radley
Keyword(s):  
Wireless Networks ◽  
Performance Analysis ◽  
Analytical Approach ◽  
The Internet ◽  
Network Address Translation ◽  
Backward Compatibility ◽  
Address Translation ◽  
Ipv6 Transition ◽  
The World ◽  
Dual Stack

IPv4-IPv6 transition rolls out numerous challenges to the world of Internet as the Internet is drifting from IPv4 to IPv6. IETF recommends few transition techniques which includes dual stack and translation and tunneling. By means of tunneling the IPv6 packets over IPv4 UDP, Teredo maintains IPv4/IPv6 dual stack node in isolated IPv4 networks behindhand network address translation (NAT). However, the proposed tunneling protocol works with the symmetric and asymmetric NATs. In order to make a Teredo support several symmetric NATs along with several asymmetric NATs, we propose multifarious Sym Teredo (MTS), which is an extension of Teredo with a capability of navigating through several symmetric NATs. The work preserves the Teredo architecture and also offers a backward compatibility with the original Teredo protocol.

Domain Name System during the Transition from IPv4 to IPv6

2014 ◽  
Vol 687-691 ◽  
pp. 1912-1915
Author(s):  
Hong Cheng Tian ◽  
Hong Wang ◽  
Jin Kui Ma
Keyword(s):  
Transition Period ◽  
Functional Unit ◽  
Transition Phase ◽  
The Internet ◽  
Domain Name System ◽  
Domain Name ◽  
Network Address Translation ◽  
Address Translation ◽  
Operating Process ◽  
Long Time

IPv4 and IPv6 will coexist for a long time, due to ISPes’ inertia in the transition from IPv4 to IPv6. Domain Name System (DNS) is a very important functional unit in the Internet. This paper describres the hierarchy and operating process of IPv6 DNS, IPv6 DNS resolver, and presents the DNS transition from IPv4 to IPv6 in particular. We suggest two methods to implement DNS service during the transition period: DNS-Application Level Gateway (DNS-ALG) with Network Address Translation-Protocol Translation (NAT-PT), and dual stacks. And we also propose their respective operational principles. This paper is of valuable reference for network engineers to construct DNS in the transition phase.

Implementation of Site to Site IPsec VPN Tunnel between Routers

2021 ◽  
pp. 163-169
Author(s):  
Ei Ei Khaing ◽  
Khin Than Nyunt ◽  
Sandar Moe ◽  
Mya Thet Khaing
Keyword(s):  
Key Management ◽  
Transmission Control Protocol ◽  
Internet Security ◽  
The Internet ◽  
Internet Communication ◽  
Network Layer ◽  
Management Protocol ◽  
Ip Packet ◽  
Key Management Protocol ◽  
Ip Packets

Today, security is very important in the communication system over through the Internet. The Transmission control protocol and Internet protocol (TCP/IP) protocol suite is used in the Internet communication that it includes five layers in which it is construct IPSec VPN Tunnel between two routers at the network layer. IPsec have two protocols that it is authentication header and encapsulation security payload (ESP) in which two protocols is shown simulation and then it is give encryption, authentication and confidentiality in which for packets at the IPSec layer within network layer and adds new IP header at the network layer. IPSec is designed to provide security at the network layer that it protects the entire IP packets. It takes an IP packet and then it includes the header, applies IPSec security methods to the entire packet and adds a new IP header. The system purpose is known use router devices at the network layer and then this layer is built IPSec VPN tunnel between routers that when it is known how does command line. IPsec VPN tunnel is built based on ACL (access list), crypto isakmp (internet security association and key management protocol) policy, transform set and crypto map and then the system is aimed to know it facts configuration and then to know used routers at the network layer and is built IPSec VPN tunnel between two routers. This system is simulated using packets tracer software 7.1.

scholarly journals Network Address Translation using a Programmable Dataplane Processor

2018 ◽  
Author(s):  
Juan Sebastian Mejia Vallejo ◽  
Daniel Lazkani Feferman ◽  
Christian Esteve Rothenberg
Keyword(s):  
Performance Evaluation ◽  
High Performance ◽  
Internet Protocol ◽  
Network Routing ◽  
Short Term ◽  
Network Address Translation ◽  
Ip Address ◽  
Ip Addresses ◽  
Address Translation ◽  
Network Address Translators

A short-term solution for the depletion of Internet Protocol (IP) addresses and scaling problems in network routing is the reuse of IP address by placing Network Address Translators (NAT) at the borders of stub domains. In this article, we propose an implementation of NAT using Programming ProtocolIndependent Packet Processors (P4) language, taking advantage of its features such as target-agnostic dataplane programmability. Through the MACSAD framework, we generate a software switch that achieves high performance with the support of different hardware (H/W) and Software (S/W) platforms. The main contributions of this paper relate to the performance evaluation results of the NAT implementation using P4 language with MACSAD compiler.

The hidden standards war: economic factors affecting IPv6 deployment

2020 ◽  
Vol 22 (4) ◽  
pp. 333-361
Author(s):  
Brenden Kuerbis ◽  
Milton Mueller
Keyword(s):  
Mobile Networks ◽  
Network Effects ◽  
Internet Protocol ◽  
The Internet ◽  
Economic Factors ◽  
Foreseeable Future ◽  
Address Space ◽  
Content Type ◽  
Factors Affecting ◽  
Address Translation

Purpose The data communications protocol supporting the internet protocol version 4 (IPv4) is almost 40 years old, and its 32-bit address space is too small for the internet. A “next-generation” internet protocol version 6 (IPv6), has a much larger, 128-bit address space. However, IPv6 is not backward compatible with the existing internet. For 20 years, the internet technical community has attempted to migrate the entire internet to the new standard. This study aims to address important but overlooked questions about the internet’s technical evolution: will the world converge on IPv6? Will IPv6 die out? or will we live in a mixed world for the foreseeable future? Design/methodology/approach The research offers an economically-grounded study of IPv6’s progress and prospects. Many promoters of IPv6 sincerely believe that the new standard must succeed if the internet is to grow, and assume that the transition is inevitable because of the presumed depletion of the IPv4 address resources. However, by examining the associated network effects, developing the economic parameters for transition, and modeling the underlying economic forces, which impact network operator decisions, the study paints a more complex, nuanced picture. Findings The report concludes that legacy IPv4 will coexist with IPv6 indefinitely. IPv6 is unlikely to become an orphan. For some network operators that need to grow, particularly mobile networks where the software and hardware ecosystem is mostly converted, IPv6 deployment can make economic sense. However, the lack of backward compatibility with non-deployers eliminates many network effects that would create pressure to convert to IPv6. A variety of conversion technologies, and more efficient use of IPv4 addresses using network address translation, will support a “mixed world” of the two standards for the foreseeable future. Originality/value The authors’ conceptualization and observations provide a clearer understanding of the economic factors affecting the transition to IPv6.

TCP and TCP-Friendly Protocols

2008 ◽  
pp. 612-618 ◽  
Author(s):  
Agnieszka Chodorek
Keyword(s):  
Operating System ◽  
Transmission Control Protocol ◽  
Internet Protocol ◽  
The Internet ◽  
Transport Protocols ◽  
Transmission Control ◽  
Control Protocol ◽  
Early Stages ◽  
Tcp Protocol ◽  
Tcp Friendly

One of the most popular transport protocols—Transmission Control Protocol (TCP)—has a long history. The first document describing TCP protocol in early stages was published in 1974. Since then, TCP specification was changed several times, and finally in 1981 was standardised by RFC 793 (Postel, 1981). Two years later TCP, together with Internet Protocol (IP), became the official protocol suite of the Internet. In the same year the first widely available implementation of TCP in the 4.2 BSD operating system was built.

Network Security and Firewall Technology

2011 ◽  
Vol 2 (2) ◽  
pp. 40-60
Author(s):  
Afolayan A. Obiniyi ◽  
Ezugwu E. Absalom ◽  
Mohammed Dikko
Keyword(s):  
Signal Strength ◽  
The Internet ◽  
Network Address Translation ◽  
Packet Filtering ◽  
Corporate Networks ◽  
The Public ◽  
Computer Center ◽  
Address Translation ◽  
Corporate Network ◽  
Key Features

With the explosion of the public Internet, corporate networks connected to the Internet, if not adequately secured, are vulnerable to damaging attacks. Hackers, viruses, worms, Trojan horses, and spyware try to invade privacy. This research examines how these threats affect the corporate network and ways to reduce them. MikroTik routerOS was configured as the router to examine these threats. Network Address Translation and packet filtering where the key features configured to make the network hidden for unauthorized users and filter unwanted traffics that might reflect malicious acts. The configuration and test were carried out at Iya Abubakar Computer Center, Ahamdu Bello University, Zaria, Nigeria. At the onset, the targeted network was full of virus, worms, Trojan horses, spyware, and vulnerable to unauthorized users. The signal strength of the network was usually very poor due to the effect from the threats affecting the bandwidth. The firewall was configured to filter out inherently dangerous services, exposing the network to fewer risks. After the research, the performance and efficiency of the network was improved tremendously.

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