Pankaj Kumar Singh, Pawan Prakash Singh
Abstract: Virtual Private Network is the technology to setup a private network in the public network. It is broadly accepted technology for corporate world for strengthen their business. A VPN connection can be represent as a pipe carrying enclosed private data via a public network. Internet Protocol Security (abbreviated IPSec) is a protocol suite for securing the Internet Protocol (IP) communications by the authentication and encryption of each IP packet transmission of a data stream. The IPSEC private network layer security and it is more suitable for VPN technology.This research paper exclusively explain the quality issues in IPsec base VPN for data transmission over a secure network.
Keywords: Authentication Header AH, Encapsulating Security Payload ESP, IP Security IPSec, Tunnel, Transport, Virtual Private Networks VPN, Quality of Service QoS