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Unlike office and home Ethernet, which has long been well known, industrial Ethernet requires more professional knowledge and practical experience. If you are installing or using an industrial Ethernet, you must understand the Five Points of cabling,

How does a layer-3 Switch set a vlan? How to implement communication between VLANs? The following is an illustration. Extension Diagram 1. Set the port connecting the vswitch as a relay. First, set (sw2L) Set sw3L 2. Create vlan2 and

We generally think that a router is connected to multiple networks, so it should have a NIC and an IP address for each network. However, in practice, you may need to create an Intranet to solve the problem of insufficient IP addresses on the

Mutual sharing and access between workstations has become a common "activity" in the LAN. This activity seems simple, but in the actual operation process, we often encounter some inexplicable access troubles. This is not the case. Below are two

1. Reliability and line security Reliability requirements are proposed for fault recovery and load capabilities. For routers, reliability is mainly reflected in interface faults and increased network traffic. Therefore, backup is an indispensable

Recently, some colleagues often make "small reports", complain that the network speed is getting slower and slower, and the leaders also "share the same feeling". This problem must be solved. Otherwise, when "the leaders are angry, it must be "very

With the development of technology, the speed, Attack resistance, and efficiency of routers are getting higher and higher, but the basic structure of routers-monolithic circuits have never changed. The monolithic circuit structure uses a single

In a single machine, the network administrator can set the startup sequence of the PC, such as starting from the hard disk, or from the disc and network drive. In fact, you can also change the startup sequence in the vro. Sometimes, it is very

To effectively improve work efficiency, many large units divide the LAN into subnets for different purposes according to certain rules. To enable communication between different subnets, you must use the routing function. Therefore, you can

A router is an important bridge between a LAN and an external network. It is an indispensable part of the network system and a leading edge in network security. However, vro maintenance is rarely valued. Imagine that if a vro does not guarantee its

If it weren't for Cisco's latest Security Warning, many network administrators have not yet realized that their routers can become the hotspot of attacks. The vro operating system is as vulnerable to hacker attacks as the network operating system.

The purpose of this work is to be able to understand the powerful tomato firmware. Today, I will pick out the five most distinctive features of the tomato firmware and introduce them to you. Function 1: Modify parameters and never restart I

Vrouters that control so much network traffic have proved that it is not easy for remote intruders to destroy the traffic. This seems to be against common sense. At the Black Hat Security Conference, a German security laboratory research institute

In our daily life, passwords are always inseparable. QQ, email, and computer logon passwords are used for chatting. If it is a network administrator, one or more vro passwords are required. If the QQ password is forgotten, it can be recovered

To change your vro to a vswitch, you must first have two vrouters, one master and the other slave. There are two ways to set up. One is routing or routing, the other is to use slave routes as vswitches. Method 1: Use a slave route or a

A vro can be connected to a wireless network or a link, but it still cannot be connected to a network. Why? Next, let's talk about vro settings: Set the computer to automatically obtain the IP address and DNS. Use the new password to reconnect to

With the increasing diversity of network applications, enterprises should not blindly increase lines, increase bandwidth, or blame vrouters for being ineffective. Therefore, they should conduct targeted management and guidance. through effective

Whether in schools, homes, or offices, if China Telecom blocks router sharing, the Internet access is severely blocked. The magic of a high foot, or a high person summed up the method of cracking and blocking. The following describes how to share

Enterprise Networks are different from home networks. Their complexity is self-evident. When setting up an enterprise, enterprises often encounter some problems. The following describes how to solve these problems when setting up a CEN. 1. the

1. Configuration Requirements Define the policy path for policy aaa to control all TCP packets received from the E3/0/0 interface of the Ethernet port, and send the packets to other packets using the serial serial1/0/0 port, the route table is still