connect two routers lan to lan

LAN (LAN) Chinese is the abbreviation of "Local Region network", the English full name is "Regional Area Network", it mainly refers to the Working Group Internet which is composed of server and multiple computers in a small scope, and belongs to a branch of computer network application. Because the network through the server to connect each computer, so the infor

developed to transfer a packet to a specific VLAN. However, the firewall, as a VLAN device, also adds a lot of flexible rules for website hosting. In this way, the labels on which the firewall depends are not designed based on security. Devices outside the vswitch can also generate tags that can be easily attached to packets to fool the firewall. How does a VLAN work? What security advantages does a VLAN have? How can we avoid VLAN vulnerabilities to the maximum extent if we decide to use VLAN

users did not have the relevant knowledge and experience. It is the case of "being inferior", which naturally limits its development. The appearance of Windows XP breaks this situation, depending on the powerful network support function and convenient wizard built in it. After the user completes the physical connection, run the Connection Wizard to test the network hardware, install the corresponding driver or protocol, and instruct the user to complete all the configuration steps. This article

account window. The account settings page is displayed. By default, the "Account Disabled" option is automatically selected, if you want to use the "cancel" option to enable the Guest account, you must first use the "Guest" name to log on to the Windows Network to access the shared printer through the Windows 98 client, can be used to connect to a shared printer in a Windows 2003 Server. However, such modification may also have a problem: Once the Gu

configuration according to the correct method, our network is still safe. Security of Wireless LAN Settings: Service Set Identifier (SSID) You can set different SSID for multiple wireless access points AP (AccessPoint), and require the wireless workstation to show the correct SSID to access the AP, so that users in different groups can access the AP, and restrict resource access permissions. Therefore, it can be considered that the SSID is a simple p

Cisco router VLan isolation LAN broadcast packet configuration experiment and summary, ciscovlan 1. Tutorial Description: connect to and set the IP address of the PC according to the network topology. PC1 and PC2 are required to be accessed on VLAN 12, while PC3 and PC4 are accessed on VLAN 34, PC1 and PC2 are interconnected, PC3 and PC4 are interconnected, and VLan 12 and VLan 34 are interconnected to isol

servers in a LAN. First, the preparatory knowledge: The general company will have a DHCP server to provide employees with the necessary network parameter information, such as IP address, subnet mask, gateway, DNS and other addresses, many cases routers can assume this task. Each time the employee computer is started, a broadcast packet is sent to the network to find the DHCP server (provided that the com

The power consumption function of LAN switches is divided into three parts: Steady-state power consumption, module/interface, and power supply. What factors should be taken into account when testing the power consumption of LAN switches? There are many factors that can affect the way LAN switches consume power. Depending on the communication properties, the

The switch power consumption index test and related problems in Lan. When a user encounters a problem in testing the Switch Power Consumption Index, others give some answers, but they are not very detailed, there are still many questions about Switch Power Consumption Indicators. We hope experts can provide some brilliant solutions. Most network equipment vendors promise the power efficiency of LAN switches

coupling between the transmitter (source) at one end of the cable and the loop at the other end, which is obtained from the FEXT (Remote crosstalk) minus the attenuation of the line, this eliminates the impact of cable length. The Return Loss (RSL) is determined by the matching degree of each element in the transmission channel. For 1000BASE-T, only matching connections can meet the demanding RSL requirements. 14. Shared and switched LAN In a

switches are the most likely devices to cause slow internet speed.Four, the network of a port to form a bottleneck leading to slow speedIn fact, routers WAN and LAN ports, switch ports, hub ports, and server network cards can become network bottlenecks. When the speed is slow, we can use the network management software to view the data traffic of routers, switch

connect to port 8888 of the local machine on my machine. Now the machine is connected to the other machine. But what do people see is 127.0.0.1 instead of 192.168.1.231? Because I am now connecting to port 8888 of the local machine, the firewall will certainly not respond, because I did not send packets out, of course, the LAN firewall does not know. After connecting to port 8888 of the Local Machine, bo

There may be many restrictions on LAN Internet users, such as websites, games, MSN, and port restrictions, which are usually restricted by software on the proxy server, for example, the most talked ISA Server 2004, or the hardware firewall is used for filtering. The following describes how to break through the restrictions: 1. Some websites cannot be accessed, and online games (such as the Internet) cannot be played. These restrictions generally rest

machine with FTP to connect the local 8888 port, now connected to each other's machine. However, what people see is 127.0.0.1 instead of 192.168.1.231 address? Because I am now connected to the local 8888 port, the firewall will certainly not respond, because I did not outsource, of course, the LAN firewall does not know. Now connected to the local 8888 port, FTP packets whether control information or dat

machine with FTP to connect the local 8888 port, now connected to each other's machine. However, what people see is 127.0.0.1 instead of 192.168.1.231 address? Because I am now connected to the local 8888 port, the firewall will certainly not respond, because I did not outsource, of course, the LAN firewall does not know. Now connected to the local 8888 port, FTP packets whether control information or dat

1. Introduction When building a campus network, you often encounter the following problems: a host or LAN in a building cannot be connected to the campus network due to geographical barriers or other reasons. On the other hand, most of the resources on the campus network are for all teachers and students, and the family zone and dormitory are the main places to use. If the campus network cannot be connected, resources will be wasted. So how can we so

Assume that you use PPPOE to access the Internet through the first vro.WAN port connection type selection: PPPOE (usually static IP, dynamic IP, PPPOE, dynamic DHCP)The LAN port is set as follows: IP: 192.168.1.1 mask: 255.255.255.0 gateway and DNS: it is generally the same as IP (other conditions are not excluded)1. When using a vro!Wiring: connect the WAN cable to the WAN port in a straight line (advantag

temporarily cut off the computer or block the attack program, able to solve the problem. Completely address ARP attacks In fact, because the router is the egress of the entire LAN, and ARP attacks are targeted at the entire LAN, when the ARP attack packets have reached the vro, the impact has been achieved. Therefore, the task of defending ARP attacks by routers

smart switches, I would like to say that these traditional storage systems will not disappear in the foreseeable future. On the contrary, you will see that the storage system we mentioned will be combined with smart switches and storage routers. The purpose is to achieve convergence and disk aggregation. In fact, what is happening is that convergence and disk aggregation work together with data images, remote replication, and data movement, which are

First, the notebook must contain a wireless network card. If there is no wireless router, a laptop with a wireless network card can also build a LAN. Now, more and more users are using laptops. To make it easier for users to move their offices and access the Internet at any time, some families or organizations use wireless routers to build a wireless network, which provides convenience for laptops to access