db15 to rj45

application layer: TELNET,FTP,SMTP,SNMP. OSI: Physical layer: eia/tia-232, eia/tia-499, v.35, v.24, RJ45, Ethernet, 802.3, 802.5, FDDI, NRZI, NRZ, B8ZS Data link layer: Frame Relay, H DLC, PPP, IEEE 802.3/802.2, FDDI, ATM, IEEE 802.5/802.2, "ARP, RARP" Network layer: Ip,ipx,appletalk DDPApplication layer: ftp,www,Telnet, NFS,SMTP,Gateway,SNMP http://blog.csdn.net/cuiweitju/article/details/38761381 RPC (remote Procedure call Protocol)-a remotin

"spy device". It does not span multiple physical network segments (usually only one listening port) without forwarding any traffic, but only passively and noiselessly collects the messages it cares about on the network. As an important part of network security, firewall and IDs are the most commonly used security devices, so mastering the installation, configuration and application of firewall and IDs is one of the qualities that must be possessed by the successful administrator. 5, Other har

, or China tietong. Didn't they give your account and password after installing broadband? After entering the above information, you can set up the next step. As long as you connect to modern, the line between the router and the computer, that small LAN will be OK! Network cable RJ45) plug in to access the Internet! But I believe many people will not just learn the above content, right? Because the above things will be dropped by people: 21:, the foll

Often see ppp,pppoe these nouns, at that time also looked at a lot of information, but has not quite understood what this is what, what to use, today calm down, read a bit more information, have some preliminary understanding, record down, later have a new understanding and revise.First, slip,ppp,ethernet are all link-layer protocols.Slip and PPP are point-to-point protocols, and the concept of MAC addresses is added to the Ethernet so that you can achieve a multipoint-to-point transfer effect (

good confidentiality. The shielding structure of Shielded Cables has inherent advantages in reducing mutual interference between cables, it not only shields external electromagnetic signals, but also blocks the electromagnetic leakage of cables. It does not emit interference signals, affecting other cables and preventing information from being eavesdropped. In the shielded network cable, there will be a copper wire, that is, the ground line, you can use a shielded

At present, there are many users who use routers. It does not matter if many people do not know how to set up Henan Netcom routers. After reading this article, you will certainly have a lot of GAINS. I hope this article will teach you more. Henan Netcom router settings: I. Hardware connection: 1. Connect the RJ45 line of the ADSL cat to the WAN port of the router, and connect the computer to 1-4 ports or cascade Switches of the router. 2. Power the vr

WIFI settings play a role in D-Link Wireless route settings. Therefore, I am going to introduce D-Link Wireless route settings today. I hope this article will teach you more things, it brings convenience to everyone's life. It seems that the image cannot be uploaded, so I will dictate it first. If you can upload the image, please let us know. This article only uses D-Link Wireless route settings as an example to describe how to set up Wi-Fi for wireless routers. Other routers are similar, but th

. The accuracy of the crystal oscillator must be smaller than 50 ppm, and the clock must be sent to different chips through the clock distribution circuit, the phase difference between the clock to be allocated is less than 2ns. The vswitch has 24 10/100 M Adaptive ports, and each port can achieve line rate switching. You can set the port at a rate of 10/100 M, full/half duplex, traffic control, static MAC address, image, and VLAN as needed. 1.2 principle diagram of vswitch The switching technol

http://wangye.org/blog/archives/845/Recently began to toss up Raspberry Pi came, because somewhere in the internet need Ruijie dialing, so I would like to be able to let my Raspberry Pi do, of course, first of all to transform it into a router, the default comes with the network as a WAN port, we also lack a network port, Wood has a way, had to occupy a USB port, Connected to a USB card, the network of USB to RJ45 network cable adapter Less, the price

configure a vro interface, you must enter the interface configuration mode of the vro. All configurations are only applied to this interface. Each configuration mode has a specific command prompt. EXEC provides a command interpretation service for IOS software. When each command is typed, EXEC will execute this command.Ii. Cisco router configurationWhen we configure a Cisco router for the first time, we need to configure it from the console port. The following describes how to connect to the co

Raspberry Pi II has come! This is a boon for those who want to study Android. The official configuration is as follows: 900MHz Quad Core ARM Cortex-a7 processor (Broadcom BCM2836) 1G LPDDR2 SDRAM (Micron) Two full-size USB ports (available for power supply) One MicroUSB interface A full-size HDMI interface 3.5 mm Audio Interface RJ45 Ethernet Cable Interface I used Raspberry Pi I to run the days of Android, although running slowly,

Wireless Access Point (Wireless launch site) www.2cto.comAP is short for Access Point (Wireless Access Node). It is equivalent to a hub or switch in a wired network, but it is a hub with the function of transmitting wireless signals, it provides a conversation meeting point for multiple wireless Internet access devices. Www.2cto.com Wireless AP Client (Wireless Client) it is equivalent to a Wireless network card with RJ45 port, can receive signals sen

transmission due to limited band availability. In parallel data transmission, the balanced interference suppression conditions of multiple parallel lines can be well met, but it cannot offset the parasitic assignees like twisted pair wires, and the attenuation of high-frequency components is severe. For formal projects, we should select standard communication lines with transmission rates of 10 Mbps or higher for EIT/TIA. For all transmitted video, voice, data, and other information, we should

. successfully launched an OnAccess System Based on the Ethernet point-to-point network topology with its own intellectual property rights ?. OnAccess is an optical access network based on residential data center exchange. It is an FTTH access technology widely used in North America and Japan with mature technologies and low costs. OnAccess 1224S is a high-performance, 24 + 2G port Fiber Ethernet switch with local network management, replaces the Ethernet switch with the commonly used

projector with RJ45 ports) has become a noteworthy issue. (2) Library Almost every campus has a library, and the modern library must be equipped with an electronic library and a library management system. Therefore, the library should be fully designed according to the wiring requirements of professional libraries. The library on campus will inevitably be associated with electronic teaching. To make it easy to call the library resources, it means tha

integrated and complete solution. 3. In consideration of market needs, switch costs, and proprietary intellectual property rights, the design of a layer-3 Switch has developed the VLSW4150 series switch with proprietary intellectual property rights. VLSW4150 series switches are a high-performance, multi-layered solution for enterprises. VLSW 4150 is also applicable to ISP and service providers, especially for some large carriers, which will be able to enhance their competitiveness in the IP mar

the Internet, and a l port is connected to router B's L port step 2) fixed DHCP of router B to close step 3) the IP address of the LAN of Route B is changed to an IP address in the same address pool of route A. For details, refer to the dual-router connection method ), call the router connected to the computer (2). The following is the same! Set: 1. Set Route 1 to the default value of the factory. Use a dynamic IP address to access the Internet and clone the MAC of a computer to the MODEM. 2. S

technology widely used in North America and Japan with mature technologies and low costs. OnAccess1224S is a high-performance, 24 + 2G port fiber-optic Ethernet switch with local network management, replaces the Ethernet switch with the commonly used RJ45 interface and the network structure of the external photoelectric conversion module. S allows you to flexibly configure the number of 1g uplink photoelectric ports (up to 2) and the number of m down

, you only need to create a network cable and several RJ45 crystal headers to establish a network connection. Currently, the general motherboard is integrated with Nic interfaces. Therefore, you only need to connect them directly. If not, you need to purchase several NICs. Under normal circumstances, there will be no compatibility issues between network products of the same brand, so I suggest you buy Alpha AFL-A6. This Nic uses the Realtek chip from

Network Basic wireless router settings, you can easily share resources between your laptop and other computers by inserting a network cable in the RJ45 network interface of your laptop. However, one of the biggest advantages of NIC networking compared with the previous several online methods is that it can share the Internet. Next we will focus on how to configure a wireless router for Internet sharing (PWIN98 ). This machine is used to configure a w