Shulou(Shulou.com)06/03 Report--

This article to share with you is about http IP proxy how to achieve, Xiaobian think quite practical, so share to everyone to learn, I hope you can read this article after some harvest, not much to say, follow Xiaobian to see it.

1. Send packets to the Internet.

Because the destination address of the packet is the external address of the gateway of the second network, the packet is routed correctly to the gateway of the second network.

Network 2 examines the received packets.

Suppose a packet is found in network 1 to be sent through a gateway, then the packet will be identified as a packet and decomposed.

The main process of unpacking is to strip the packet header and then reverse the packet back to the original packet header.

4. The gateway of network 2 sends the recovered original data packet to target terminal b.

The destination address of the original packet is the IP of terminal b, so the packet can be sent correctly to terminal b. In the view of terminal b, the same data packet as that transmitted directly from terminal a is received.

5. The packet processing process from terminal b back to terminal a is the same as above, enabling terminals in the two networks to communicate with each other.

As can be seen from the above description, two parameters are important for communication when the gateway processes packets: the destination address of the original packet (destination address) and the address of the remote gateway. Based on the destination address, the gateway can determine which packets are processed, and packets that do not need to be processed can be forwarded directly to the upper route.

The remote gateway address specifies the destination address of the processed packet, that is, the gateway address at the other end of the tunnel. Because network traffic is bidirectional, gateways at both ends of the tunnel must know the destination address and the corresponding remote gateway address.

When the gateway of network 1 receives the access packet from terminal A, it checks its destination address. If the destination address belongs to Network 2, it encapsulates the packet. Packaging methods vary depending on the technology used. At the same time, the gateway creates a new packet and uses the original packet as the payload for the packet. The destination address of the packet is the external address of the Network 2 gateway.

The above is how http IP proxy is implemented. Xiaobian believes that some knowledge points may be seen or used in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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