Study and Analysis of the Behavior of UDP Encapsulated IPV4 Packet With ESP Protection in IPV4-IPV6 Translation

Geocey Shejy; Smita Jangale

Internet address is now in a transition phase from IPV4 address to IPV6 address; the reason behind this is the lack of address in IPV4.But sudden transition to IPV6 is not possible and hence transition strategies are devised by IETF. One of the transition strategy ie. Header Translation is analysed in this paper. The study is conducted on NAT-PT, one of the IPV4-IPV6 translation gateway which translates IPV4 header in to IPV6 header and vice versa. The IPV4 packet encapsulated with IPSec is injected in to an IPV4- IPV6 network. But IPSec and NAT exhibit incompatibilities so that an IPSec protected IP packet cannot cross NAT-PT. The paper thoroughly analyze one of the IPSec protocol i.e. ESP behavior in NAT-PT It is observed that when ESP encapsulated packet cannot crosses NAT-PT.UDP encapsulation of the packet is done. The analysis of the IPSec protected IP packet encapsulated in UDP shows successful traversal of the packet with IPSec security. Lesser overhead without affecting the efficiency is observed as an advantage of UDP Encapsulation.

Select Volume / Issues:

• Volume 6 Issue 1, Jan. 2015

Year:

2015

Type of Publication:

Article

Keywords:

IPV4 to IPV6 transition; Header Translation NAT PT UDP Encapsulation; Encapsulating

Journal:

IJECCE

Volume:

6

Number:

1

Pages:

123-126

Month:

Jan.-Feb.

ISSN:

2249-071X