How to achieve single network cable and double network? What is the difference between a single shie

I have a friend who is a dual account for Telecom. He did it with E8**. That adsl machine is pretty much the same as routing.

There are 4 jacks. If you're loaded with two trillion. Both machines have two megabytes of Internet access at the same time.

It is recommended that you call number 10000 and ask. And the cost is the same.

Not a double cat. It's a cat, single line in, multiple line out. Looks quite like routing.

For example, device A connects to the switch through a network cable, and the switch connects a network cable from a certain port, and connects two different devices B and C through dual communication (I don't know if the name description is accurate, please correct it), how can I access A, B, and C? In other words, can A access B and C at the same time, or can only one at the same time?

Can B and C access A at the same time, or can only one person access A at the same time? Can B and C visit each other?

If another device D connected to the switch also joins the communication, that is, when A accesses B through a tee, can D access C at the same time through a tee?

Pair? Well, if he's over there and does something online, you basically can't see anything. The capacity of a network cable is limited. It's better to use a router to measure the house, and the money is evenly divided, and you can limit his Internet speed from you when you think the card is stuck

Is this necessary?

It's not all over if you can access the Internet.

What kind of double do you need to set up a route?

The routing itself is to use one broadband and multiple machines.

Just turn off the router and hub. Just set up the gateway and IP.

A2 breaks off first.

A1 connects to the upper-layer device, fills in the IP address, gateway, and DNS assigned by the upper-layer device, ensures that C1 is available for Internet access, and configures Internet sharing.

A2 fills in a static private address such as, but make sure that the address and A1 are not in the same network segment and are not subordinate to the network segment of A1.

The mask is basically arbitrary. By default, if you want to limit the number of available IPs, the last digit is 4 for 252 and 8 for 248, and then extrapolated.

The gateway is empty. The static private address of A3 matches the IP address of gateway A2 and A2.

A2 3 twisted pair with crossover wire.

ADSL user's A1 setting is omitted, and it can be fully automatic.

You now have modem (cat),You go to buy a router again,**Within 120 yuan,40-60 yuan Such a router is not recommended to buy and use,Because,The performance is not very stable,After buying a router,Connection:Which network cable from the cat is connected to the WAN port of the router,Lan1-Lan5 interfaces are connected to your two computers。 However, you must understand the settings of the router, if you don't understand, you can give me the information, and I will help you complete it.

If two computers have been connected to the Internet with a router, of course they both have network cards. Now it is not possible to dial with two cats for one account, and ISPs are not allowed to dial repeatedly, so this road does not work. If you don't buy a router, then there is another way, that is, the two computers are interconnected, one of them is a server, and the other is a client, the only drawback is that the server computer must be on when the client goes online.

Internet sharing is also required to be set up, with an internet cable (not pass-through). It's more troublesome to say, you can find someone who understands to do it for you.

It's not okay to don't have a router, just buy a router and set it up, and it's not expensive now.

There is a line that sells one interface to two network cable interfaces, and you can buy one according to the way you used to surf the Internet.

First of all, the account must not be dialed by two people, which is a bit of a dead heart. There is a reason why many people use one account to access the Internet is a cat plus route, and this principle has existed for so long, because of this trick. Although routers generally have the functions of switches and routes, the cat cannot extend other functions.

The route is not a consumable, in principle, it is not easy to break, you can buy one directly, and you don't care about the sixty or seventy yuan.

The router doesn't consume power, so why turn it off?

It is possible to dial the number twice at the same time.

Use a switch to separate two lines, and then install dialing on each machine, but it seems that I can't use telecom my e-home, you can rush the dialer that comes with Windows.

OK.

No, you can only unplug one computer with a broadband account.

Just buy a router and you're good to go.

Dial the number with a route.

The two computers are connected to the LAN port of the router.

wna mouth even cat...

If you turn on two machines, you can't do it, or you use a switch, otherwise it won't work.

No way. The one that goes to the network must be turned on first, otherwise the other computer will not be able to access the Internet.

Differences: 1. Internal structure.

A single-shielded network cable means that there is only one layer of aluminum foil wrapped inside.

A double-shielded network cable is one that is wrapped in a layer of aluminum foil and metal mesh inside.

2. Transmission. The effective distance of a single-shielded network cable is longer than that of a double-shielded network cable.

The shielding layer will consume the electromagnetic waves from the outside world, so as to avoid the interference of electromagnetic waves on the network, and the shielding layer will resist the electromagnetic interference of the outside world at the same time, but also consume the data transmitted by itself, so that the network signal is weakened.

Network cables (twisted pairs) can be divided into shielded twisted pair and unshielded twisted pairs.

The unshielded twisted pair jacket has a small diameter, saves space, is lightweight, easy to bend, and easy to install. The shielded twisted pair is encapsulated with a metal film shielding layer inside, which has good anti-interference performance.

Shielded network cables (twisted pairs) are divided into single-shielded network cables and double-shielded network cables, and single-shielded network cables are:

2. Each pair of wires is wrapped with metal foil (usually aluminum foil);

Double-shielded network cables are:

2. Each pair of wires is wrapped with tin foil, and copper wire metal mesh is added to the four pairs of wires;

Metal foil (aluminum foil) is to prevent high-frequency interference, and metal mesh is to prevent low-frequency interference.

A single shield has only one layer of insulation inside the outer sheath, while a double shield has one layer of shielding for each core, and finally a shield layer on the outside of all the cores (inside the sheath).

You can use a router to connect multiple computers to the Internet at the same time, or you can buy a cat with multiple LANs.

Yes, it is recommended to use a switch! Conflict Domains can be reduced!

Use the router to dial up the Internet, and the two will not affect each other.

Twisted pair can be divided into shielded twisted pair and unshielded twisted pair, unshielded twisted pair unshielded jacket, small diameter, saving occupied space; Light weight, easy to bend, easy to install, so most LANs use the unshielded twisted pair cable as the transmission medium of the wiring to network, and the network cable is composed of a certain distance long twisted pair cable and RJ45 head.

There is a metal film for shielding, which has better anti-interference performance. However, shielded twisted pair requires that the entire system is shielded devices, including cables, sockets, crystal heads and patch panels, etc., and the building needs a good ground wire system for Ariga. However, in actual construction, it is difficult to ground everything perfectly, so that the shield itself becomes the biggest source of interference, resulting in performance that is even far inferior to that of unshielded twisted pairs.

Therefore, unless there is a special need, only unshielded twisted pair cables are usually used in the cabling system.

There are many ways to shield twisted pairs.

1. Wrap only aluminum foil outside the four pairs of lines;

2. Each pair of wires is wrapped with aluminum foil, and there is no metal mesh outside the four pairs of wires;

These two are generally referred to as single-shielded twisted pairs.

3. Wrap it with aluminum foil and metal mesh outside the four pairs of wires;

4.Each pair of wires is wrapped with aluminum foil, and four pairs of wires are covered with metal mesh;

These two are generally called double-shielded twisted pairs, aluminum foil is anti-high-frequency interference, and metal mesh is anti-low-frequency interference.

Buy a switch for a few dozen dollars ......You can achieve your requirements.

There is no effect on the speed of the network, and the fabric of the switches is independent of each other.

So it doesn't affect each other.

The telecommunications bureau has a shunt to buy it, and the telecommunications bureau near the university must have bought it, and that's what he intended to cheat you out of your money in the first place. That's what I do in my dormitory, I'm in Hangzhou, using flash.

A line is bound to an Internet account. Even if you use a router switch, you can't break this limit, so you can't use two accounts to surf the Internet at the same time.

In the case of ADSL, you can only use one account, but you can use a hub to share. If you want to do so, you need to contact Telecom 10000!

Buy a router, there is a route manual on how to operate, and the network speed will be affected.