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Enhanced NAT-PT protocol scheme

A technology of ENAT-PT and protocol, applied in the field of computer network

Inactive Publication Date: 2002-11-20
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

NAPT-PT uses port multiplexing technology to save a lot of IPv4 addresses, but it only supports IPv6 nodes to access IPv4 networks

Method used

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  • Enhanced NAT-PT protocol scheme
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Examples

Experimental program
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Embodiment Construction

[0041] The operation process of ENAT-PT will be further described below through examples. Such as image 3 As shown, the temporary IPv4 address pool contains two V4 addresses: 202.120.224.1 and 202.120.224.2. The temporary IPv4 address 202.120.224.1 is statically bound to the DNS server. The role of the DNS server is as described above. The ENAT-PT gateway intercepts all data packets and performs relevant address translation and other processing. The following example shows how to establish multiple inbound sessions on one registered IP address 202.120.224.2. Session 1 Node A initiates a session to Node B

[0042] During the domain name resolution process, the DNS server returns the address of node B (FEDC: BA98::7654: 3210), which is bound to the temporary IPv4 address 202.120.224.2 in gateway G (the state of the temporary IPv4 address is bind, see figure 2 ). Gateway G returns the temporary IPv4 address 202.120.224.2 as the address of node B to A. (1) Outbound data p...

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Abstract

The invention relates to the ENAT-PT protocol, which can access both IPV4 and IPV6 networks, belonging to the area of computer network technique. The ENAT-PT protocol is composed of ENAT, NAPT and PTthree parts. The invented protocol solves the issue of accessing between IPV4 and IPV6 networks, and supports network interconnection by using only a small amount of IPV4 addresses.

Description

technical field [0001] The invention belongs to the technical field of computer networks, and specifically relates to an enhanced NAT-PT protocol capable of realizing efficient mutual access between an IPv4 network and an IPv6 network. Background technique [0002] Although IP has won the competition of many network protocols because of its simplicity, and has been widely used in the network, especially the Internet, but with the advancement of technology and the rapid development of network applications, IPv4 also faces many challenges, such as The address space is too small, the protocol processing is still relatively complicated, the support for service quality is poor, and the security is poor. In response to the problems faced by IPv4, the IETF designed the next-generation Internet protocol IPv6. Although IPv6 inherits many advantages of IPv4, there are significant differences between the two. Due to the huge amount of existing resources and various types of equipment...

Claims

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Application Information

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IPC IPC(8): H04L12/66H04L45/741
Inventor 凌力
Owner FUDAN UNIV
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