Yang Feng flipped through the back of the machine, searched the machine model on the nameplate on the Internet, and found the instruction manual for Cisco routers and switches. After nearly 2 hours of research, I finally knew the instructions of the router and switch by heart. After reflashing the firmware and configuration file, he stood up and walked straight to the dormitory where Mr. Liu, the dormitory manager, was. Looking at Yang Feng's departure, the roommates walked to the front of the machine one after another to take a closer look.

The third child asked in a low voice: "Boss, do you think this iron shell is really the kind of thing used in Internet cafes? It doesn't look like it, why do you have to have a glass or something?"

- "You are stupid, you said that the cabinet with glass is a cabinet, I know that I don't know anything", the second child interjected, feeling that the third child at this time was like a person from a backward area, and everything was fresh.

The boss looked at the constantly flashing machine and said, "It should be right, I take a closer look every time I pass by the cabinet of the Internet café, and it keeps flashing there, it's too conspicuous." ”

The third child saw that the equipment was well-made and heavy, and said with a crooked mouth: "This thing shouldn't be cheap, look at this workmanship, look at this flashing lamp, it's really handsome!"

As he spoke, the third child picked up the cup and drank a sip of water to moisten his throat, and casually put the cup on top of the router.

Yang Feng walked to the dormitory manager Teacher Liu's bedroom, the bedroom door was open, and Teacher Liu was wearing headphones to watch the news broadcast on the computer. Yang Feng was afraid of disturbing Mr. Liu's interest in watching the news, so he just stepped into the bedroom door and retreated. At this time, Mr. Liu saw Yang Feng from the reflection of the window glass in the dormitory, he took off his headphones, and said to Yang Feng's figure in the glass: "Yang Feng, is there something wrong with me?"

At this time, Yang Feng's right foot retreated to the ground, and when he heard Mr. Liu's question, he leaned on the door frame and said to Mr. Liu: "Mr. Liu, I want to ask you if I have something."

- "Well, let's hear it. Teacher Liu's eyes and expression were amiable.

"I want to borrow a computer, so I'm ...... Give it a try, I'm debugging a device to see if I can set up a network", Yang Feng said to Mr. Liu in a low voice, he didn't know if Mr. Liu would be able to agree to lend him the computer.

- "No problem, you can come in", Teacher Liu agreed very happily, then unplugged the headphones from the laptop, waved at Yang Feng, and motioned for him to come in.

Yang Feng walked in and looked around, three of the four beds in the entire dormitory were uncovered, and one of them was equipped with fitness equipment such as dumbbells, grip machines, and abdominal wheels. The covered bed is Mr. Liu's bed, the white sheets are spread on the blue mattress without wrinkles, the dark green quilt is folded into a square "tofu block", and then look at the ground, every floor tile is spotless. "When I came here last time, I didn't notice that Mr. Liu's bedroom was so neatly tied!", Yang Feng sighed secretly in his heart.

Walking to Mr. Liu's computer, Yang Feng and Mr. Liu talked: "Mr. Liu still has the habit of watching the news?"

- "Well, learn more about international and domestic facts. Teacher Liu said to Yang Feng with a smile.

Yang Feng leaned in front of the computer to see what news Mr. Liu was watching. Teacher Liu flashed to the side, sat down on the neat white sheet, and pressed out folds in an instant. Yang Feng nodded politely to Mr. Liu, then put his hands on his knees, hunched over and looked at the news being broadcast on the computer:

According to the Moguo MNN TV report, the body of Joe, the chairman of the SCP, was found downstairs in the SCP building this morning, and after an investigation by MBI and the police, the cause of his death may be suicide by jumping off the building, and homicide cannot be ruled out. SCP is the world's largest ERP software manufacturer, and nearly half of the world's top 500 companies use the company's software products. After this incident, Joe's wife, Yang Li, a Chinese-American who is also the legal heir to his assets, did not say whether she would announce at the board meeting to take over the company's operations. Senior analysts at Vaal Street believe that Yang Li is still young and may not have the ability to operate SCP, and Green Mountain Capital, as the second largest investor, is very likely to take over SCP. After the fermentation of this incident, SCP fell 16% after the opening of the desert stock, the largest one-day decline in 5 years, and the occupancy of Green Mountain Capital is expected to strengthen Val Street's rating and PE of SCP, and boost the ...... of SCP's stock price."

Yang Feng sighed after reading it: "This news is really professional, I can't understand a lot of words." You can still learn a lot from watching the news."

- "That's", Teacher Liu patted Yang Feng on the shoulder: "I don't understand it either, just wait for you young people to study hard, you will definitely be able to understand it in the future." By the way, don't you want to use the computer? Just turn it off and unplug it, I don't have anything to save. ”

Yang Feng hurriedly thanked Teacher Liu, Teacher Liu smiled and nodded, and then Yang Feng walked to the dormitory with the computer.

After returning to the dormitory, Yang Feng closed the door of the dormitory with his hind feet, and the third child saw the laptop in Yang Feng's hand, and came over and said, "Wow! Where did you get this computer?"

- "I borrowed it from Mr. Liu, I'll try to see if I can connect to the local area network", Yang Feng walked towards the table with his laptop and power cord in both hands.

He skillfully picked up the network cable and plugged it into the switch, and the other end was connected to Mr. Liu's laptop. Then I sat down and typed the command on my computer to start the DHCP service, and after this service was started, the router could support the automatic assignment of IP addresses.

Yang Feng unplugged the CONSOLE cable and connected the switch to his computer with a network cable. After seeing the green and yellow data communication indicators flashing, he executed the ipconfig command of the command prompt on one of the computers, and entered the ping command on the other machine corresponding to the ipv4 address displayed in the ipconfig of this machine, and the delay showed a light rain of 1ms, which means that both devices have been able to complete the task of the command correctly.

In fact, the third child is also a computer fan, but because his family was poor when he was a child, he never bought a computer, so he could only watch Yang Feng fiddle with the computer. At this time, the third child leaned in front of the computer that Yang Feng was operating, and carefully studied the instructions typed out in the command prompt.

But who would have thought that it would be too late and that soon, the third child inadvertently touched the water cup he casually placed on the router. It was impossible to hold the cup, and as a result, the water was dripping into the router.

The router instantly sparked and made a "crackling" sound.......