Message network address conversion processing method and network equipment
A technology of network address translation and network equipment, which is applied in the field of network equipment, can solve the problems that users cannot get NAT services, the performance of new sessions created by a single NAT board is limited, and the session specification is insufficient, so as to achieve the effect of dynamic load sharing
Active Publication Date: 2015-06-03
XINHUASAN INFORMATION TECH CO LTD
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Problems solved by technology
[0003] At present, although the depletion of the available IP address space is effectively slowed down through NAT, it is often due to the limited performance of new sessions on a single NAT board or insufficient session specifications, resulting in that some users will not be able to get IP addresses after the network scale expands to a certain extent. Problems with NAT services
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[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0023] see figure 1 , figure 1 The flow chart of the method provided by the embodiment of the present invention. The method provided by the invention is applied to network equipment, and the network equipment may include a main control board, an interface board and N NAT boards. Wherein, N can be set according to the actual situation of the network, and the value can be: a positive integer greater than or equal to 1. For example, if the new session performance or session specification of a single NAT board satisfies the NAT service of all network users, then the value of N can be 1; otherwise, N can be a positive integer greater than 1. Moreover, when N is greater than 1, the present invention can virtualize the N NAT boards into one virtual NA...
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The invention provides a message network address conversion processing method and network equipment. The method comprises that: a main control panel allocates independent outer network IP addresses and port numbers for NAT (Network Address Translator) boards, and records NAT identifiers, and the outer network IP addresses and port numbers allocated to the NAT boards into an interface board; the interface board redirects a positive message to the NAT boards according to a load sharing mode, so as to lead the NAT boards to execute NAT processing to the positive message redirected onto the board by utilizing the allocated outer network IP addresses and port numbers, and controls a reverse message responding to the positive message to redirect to the NAT boards executing NAT processing to the positive message, so as to execute NAT processing according to the recorded outer network IP addresses and port numbers allocated to the NAT boards. The message network address conversion processing method and network equipment can enable all network users to be capable of obtaining NAT service.
Description
technical field [0001] The invention relates to network communication technology, in particular to a network address translation (NAT: Net Address Translation) processing method and network equipment for messages. Background technique [0002] NAT is the process of translating an IP address in a packet to another IP address. In practical applications, NAT is mainly used to realize internal network access to the external network, and it slows down the exhaustion of available IP address space by using a small number of public IP addresses to represent more private IP addresses. [0003] At present, although the depletion of the available IP address space is effectively slowed down through NAT, it is often due to the limited performance of new sessions on a single NAT board or insufficient session specifications, resulting in that some users will not be able to get IP addresses after the network scale expands to a certain extent. NAT service problem. Wherein, the session is u...
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IPC IPC(8): H04L29/12
Inventor 徐步正
Owner XINHUASAN INFORMATION TECH CO LTD