Whether a network can be established between the two machines

Set the IP address first, for example:

One and the other.

Then you can connect it with a cable. Then, on the laptop, run the command:

ping _t

If it passes, it will be displayed.

The interface of the line is referred to as follows:

Before connecting to the network, the first thing we should consider is the production of the network cable. Generally, if you use twisted pair to build a network, you need a hub (hub), when you connect the network through the hub, the clamping method of twisted pair is very easy, just clamp the network cable at both ends one by one, the clamping order is the same on both sides, and the unity is: 1, white orange, 2, orange, 3, white green, 4, blue, 5, white blue, 6, green, 7, white brown, 8, brown.

Note that both ends are in the same line order and correspond one-to-one. This is the standard for making 100m network cables, that is, the 568b standard, which is what we usually call the positive line or standard line.

However, as a small network with only two machines, it is a bit too wasteful to buy a hub of several hundred yuan, in fact, we can directly connect the two computers with a network cable without a hub, but at this time, the practice of network cable should have some small changes, and the dual-machine interconnection without a hub is realized by changing the order of the network cable. The specific method is: one end adopts the above-mentioned 568b line standard unchanged, and the other end will swap the positions of line 1, line 3 and line 2, line 6 of the eight lines on this basis, and then the line sequence of the network cable becomes:

1, white-green, 2, green, 3, white-orange, 4, blue, 5, white-blue, 6, orange, 7, white-brown, 8, brown. This is the 568A standard of 100m network cable, which is what we usually call the reverse line or intersecting * line. After arranging the wire sequence according to the standard of 568B at one end and 568A at one end, and clamping it, a network cable suitable for direct connection of two computers is ready.

Absolutely, just connect it with a direct connection or a crossover network cable.

Can LAN

Only 1 router old can be.

Two machines, directly buy a network cable to connect directly, no need for anything (except for the network card).

Can any two hosts with access to the Internet communicate directly with each other? Why?

Direct communication between the two hosts is usually possible. This is because, if both hosts are connected to the internet, then they can communicate with each other over the internet. Communication between hosts is via Internet Protocol (IP).

The IP protocol is a packet-switched protocol that allows data packets to be delivered over the internet. The IP protocol allows the source host to send packets to the destination host regardless of the intermediate path. Of course, there is also a possibility that there is no direct communication between the two hosts.

This could be because network devices, such as firewalls, are set up to block communication between them, or because the network connection between them is failing.

Summary. Hello dear, there can be direct communication between the two hosts. This is because the Internet is a global network, which allows different computers to connect with each other to enable the transmission of information.

Can any two hosts with access to the Internet communicate directly with each other? Why?

Hello dear, there can be direct communication between the two hosts. This is because the Internet is a global network, which allows different computers to connect with each other to enable the transmission of information.

Mainly because of the development of Internet technology, different computers can be connected through the network, so as to realize the transmission of information. In addition, Internet technology can also provide many services, such as online shopping, conferences, education, etc.