Many friends have asked how to set the IP address for large monitoring projects? For monitoring projects, many of the causes of failures are related to improper setting of ip address, such as ip conflict, or there are several ways to monitor images are not displayed, etc., all have certain association with ip, it is very important to allocate ip address reasonably.
First, why should we allocate IP reasonably?
For small monitoring projects, the setting of ip address is relatively simple, most people will not make mistakes. For monitoring projects with more than 254 points, it is easy to make mistakes. Why?
First, if more than 254 points are not divided into network segments, let the system automatically assign an ip address, it is easy to generate ip conflicts.
Second, if the network segment is divided, the allocation of the ip address and the setting of the subnet mask become a problem. Some friends are unfamiliar with the ip address allocation and are prone to errors.
So what should I do? It is a reasonable way to divide the network segment.
Second, how to allocate ip to large networks
For monitoring over 254 points, we can assign IP addresses without dividing the network segment, but a good network planning is not only a simple and reluctant implementation function, but also needs to pay attention to the later maintenance and the clarity of the entire network. With scalability.
Let's take an example to see how to assign an ip address.
The monitoring project of a plant is divided into four areas with a total of 300 points. All the equipments are in one internal network. The main lines are connected by optical cables. There are two areas of 70 points. The other two are each. 80 points, how to set their ip address.
Assign the following picture:
First of all, to analyze, to achieve the monitoring of these 300 points, there are two ways to achieve:
The first type: no network segment
The first is to not divide vlan, use a layer 2 switch, the direct ip address can be set to IP address range is 192.168.0.1-192.168.1.254, subnet mask is 255.255.254.0, a total of 500 ip addresses can be used, completely enough.
Some friends may have questions about how the subnet mask of 255.255.254.0 is derived. Why is it not 255.255.255.0?
Subnet mask calculation
Here is a separate description of the IP address range 192.168.0.1-192.168.1.254, why is the subnet mask of this network segment 255.255.254.0?
This ip address range includes two ip segments.
The first ip segment is: 192.168.0.1—192.168.0.254 Its subnet mask is 255.255.255.0.
The second ip segment is: 192.168.1.1—192.168.1.254, and its subnet mask is 255.255.254.0.
In general, their common subnet mask is 255.255.254.0.
Second: divide the network segment
Here we focus on the way to divide the network segment, using the three-layer switch can directly divide the four network segments.
Main monitoring address: 192.168.1.1 255.255.255.0
Area A address: 192.168.1.2~192.168.1.254 Mask 255.255.255.0 Gateway 192.168.1.1
Area B address: 192.168.2.1~192.168.2.254 Mask 255.255.255.0 Gateway 192.168.2.1
Area C address: 192.168.3.1~192.168.3.254 Mask 255.255.255.0 Gateway 192.168.3.1
D area address: 192.168.4.1 ~ 192.168.4.254 Mask 255.255.255.0 Gateway 192.168.4.1
Each network segment can accommodate more than 250 points, which is enough to allocate the ip address of each area. In addition, if there are any points in each subsequent area, there are enough reservations. The access layer switches in this area need reasonable allocation, the choice of access layer switches, we have mentioned before, not to explain too much here.
So what are the benefits of dividing the network segment like this?
The ip address of the four areas is obvious. If there is a problem with that camera, you can quickly locate the problem with that camera by directly pinging the ip address. It can also effectively prevent ip conflicts. ip is a high frequency in network faults. The problem can also reduce the broadcast storm.
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