These days too busy (touch) (fish), in order to improve ability to learn the principle of network transmission, prepared huawei router, Tplink router and a device
The first device to connect is like this: equipment - & gt; - huawei router & gt; Tplink router - & gt; target gateway
I interest outraged with the ping 192.168.40.1 gateway, and in the equipment - & gt; huawei routing and huawei route - & gt; Tplink ends respectively caught
Analysis:
Send: network packet from equipment to target gateway, network BaoYuan IP and MAC MAC has changed, and the target is in a red tag data changes, the target address did not change, will eventually find target gateway
Response: network packet from target gateway plays equipment, network BaoYuan IP did not change, the source MAC and target IP and MAC has changed, so the question comes, how do you know the response of network packet is equipment?
Anyone bosses can help solve it?
CodePudding user response:
Like express Courier tricycle, with branches to the distribution center of the car, and then across the province coach... , path transmission tool changing, but the goods receiving destination, destination IP, to the end of the receiving node to find the ultimate consignee, network of Courier in the face of the end user, direct routing equipment is the ultimate MAC address,CodePudding user response:
But the response of the network packet, destination IP/MAC has been changed, the same source IP, unlike send package logic?