What's wrong with our hotel network? In some rooms, guests plug in laptops, indicating that they are restricted and cannot connect. I also have a separate room in the hotel.

1. Restrict connection: Because general network cards are 10M/ 100M, the display is limited because the bandwidth is insufficient to reach 10M;

There is an option in the local connection property: "Don't notify me when the connection is restricted or disconnected" and put a tick in front of it;

2. Unable to access the Internet:

In the network connection, right-click the local connection and click the button in the General tab to pop up the dialog box for selecting network component type, and select a protocol from the list to cancel Microsoft TCP/IP Version 6.

It turns out that laptops have different designated IPS, mainly on network segments:

IP, the specified IP cannot be duplicated, such as 192. 168. 1 .0 ~ 255, except for a router, such as192.168.1 For example, 192. 168. 1 DNS, if you don't know, just ask the local customer service, for example, 100 19, and you can't fill it in randomly! If you don't want to specify manually, you can open DHCP in the router and specify a network segment range for the client to obtain automatically.

One more question. There are more than 255 computers, such as more than 300 computers.

1) If there are more than 50 machines in the same LAN, it is likely to greatly reduce the network efficiency.

2) So you'd better set an IP address segment every 50 units. For example:

All your servers use the 192. 168.0.x address segment;

300 ***6 address segments.

192. 168. 1 . x ~ 192. 168.6 . x

3) Let's look at the hardware connection. You'd better use three 24-port switches, with an average of 50 connections. The advantage of this is that each switch will not work at full capacity, which will not reduce the network efficiency.

4) The three switches are connected in series. For example, we number these three switches as A 1, A2 and A3, and the connection method is as follows:

Start with a 1- string-a2-string -A3. In this way, these 50 machines were successfully networked.

The other five network segments are analogized in turn, C3 B2 b 1...F 1, F2, F3.

5) In addition, a 16 port switch is needed. We number this switch as Z 1. Connect A 1, B 1, ... F 1 to this switch. All servers are connected to this switch. Broadband routing should also be connected to this switch.

The advantage of this is that it is conducive to troubleshooting in the future.

6) Then add another route (non-broadband route), numbered Z2, Z 1 and Z2 connection. And create a routing table so that all network segments can access it. 300 machines can access the Internet under an efficient network.

=========

Suppose the network segment of network A is 192. 168.0.x, the network segment of network B is192.168.1.x, and the router address is192.438+068. 546667

Connect the networks of two network segments through a router and access the switches of the two networks, as shown below.

Network A-Router-Network B (be careful not to plug it into the router's WAN port)

Access the router through the machine of network B, find the routing table and add the routing table:

IP: 192. 168.3.0 Subnet mask: 255.255.0 The gateway is set to:192.168.1.

After saving and exiting, set the machine subnet mask in all LANs to 255.255.255.0.

The gateway is set to192.168.1.1.

Then try to access through http:/192.168.3.1or http:/192.168.3.2.

Of course, if you have a modem with routing, you can also achieve the above functions, and the connection is a little different.

Modem-Network A-Network B can also be connected to Network B, and other settings are the same as those of the router.

If the ftp server is the same, there is no need to set it up. If not, please set it to192.438+068.3.x.

If you want to connect two networks, you only need to change the server IP to the IP of the original network segment, and then change the routing table to:

192. 168.0.0 255.255.255.0 192. 168. 1. 1

Do it. There is always an original table in the router.

192. 168. 1.0 255.255.255.0 192. 168. 1. 1

If you don't have this table, please add it!