Network layout IP allocation issues, how to assign IP addresses on local area networks

There is no need to add equipment.

Three methods. The first is achieved by adding an IP management policy.

Set the router to IP

b The server is set with an IP range.

b1= b2=

a The manager's computer is set up with an IP range.

a1= a2=

c IP segments are set for computers in the network.

d Set IP segments for computers in the network.

After this setup, all computers can access each other and can access the Internet.

Next. 1.Set which IP ranges can be used on the router to access the Internet.

All routers on the market have this feature. ）

2.Here's the point.

Run MMC on the server, add"IP security policy management"(hereinafter referred to as the Strategy).

If you set the policy in B1, you can access the machine.

If you set the policy in B2, you can access the machine.

Set the policy in CX and set the policy in DX.

PS: Here we assume that your network equipment is the cheapest kind, which is a bit cumbersome, but it can be achieved.

The second way is to set different IPs without setting policies.

1.The router adds two private IPs, and .

2.Add two IPs to the B server, (multiple IPs can be set for systems above win2000).

b1 and. b2 and.

3.A. Add two IPs to the manager's computer

and 4The C segment computer is set to IP

The D-segment computer is set to IP

5.If C1 and D1 want to communicate with each other, add the corresponding IP addresses.

PS: This method has certain requirements for routers. All other equipment remains unchanged.

This way all computers have access to the Internet. (access rights can be set on the router) can only access server number one.

Only server number 2 can be accessed.

Computers with IP ranges can access each other (i.e., two servers can access each other. The manager's computer can access two servers (, C1 and D1 need to communicate with each other plus IP (OK.

The third method refers to ly95haoyou's answer.

Let's give points when it's over.

If there is a switch that can be managed, it is simple, and VLANs can be dividedIf you don't have one, make your own ROS soft route.

HomeMy detailed chat Your question is not very clear.

One network will do, using domain rights control.

To assign a fixed IP to a local area network, select the IP address segment according to the number of people, and then set the fixed IP on the router and each office computer and server.

1. Disable the DHCP function on the gateway or router, or leave only a small number of addresses for DHCP dynamic allocation;

2. Decide whether to use Class B or Class C addresses according to the number of PCs or servers that need to be accessed in the LAN;

3. Set the IP address mode to static for each PC in the LAN, use the static IP that can be assigned in turn, and set the IP address, subnet mask, and default gateway;

4. If the equipment in the LAN needs to access the Internet, you need to set one or two DNS server addresses.

IP addresses are divided into five categories: A, B, C, D, E, and the most used in China is still Class C addresses, and there are 255 IP addresses for a Class C address; The IP address assignment can be selected, DHCP can be obtained automatically, or it can be manually configured.

For example: Then the available IP can only be used because it is necessary to go to the beginning and the tail, and why it is necessary to go to the beginning and the tail is not explained.

It depends on what operating system you have.

Hello! The ISP address segment in your question is a CIDR block that includes 8 Class C addresses, i.e. What you're asking is what is the IP address of each router?

I don't know if the ISP address you mentioned refers to the address assigned by the ISP to the user, if it is an address assigned to the user, you can plan the address for each router as needed. However, since there are 120 hosts per workgroup, the mask for each subnet should be a minimum of 25 bits, i.e., 24 bits (which is also acceptable). If you want to ask what is the interface IP address of the router itself, and the interface address also needs to be in use, then we can arbitrarily take out a piece of address to be the interconnection address of the device, and the remaining address segment as the user address.

Of course, you can also plan another private network address as the interconnection address of the device, and use the entire 8 Class C addresses assigned by the ISP as the client address.

Also, if you don't look at the mask, you describe the two IP addresses respectively. If it is represented as and or , it usually represents an address range, or a specific address in a network segment.

The addresses range from to;

The addresses range from to;

The addresses range from to;

The addresses range from to;

FYI.