network routing tutorial

Welcome back to the core of the Network: routing protocol. In this series of route protocol lectures, we will first introduce one of the earliest and simplest protocols: the route information protocol (RIP ). Like all protocols, RIP is used to distribute network information related to routers. On the most basic level, the router needs to know what

192.168.1.3, and Ping is not stopped, add a host route entry on pC1: Route add-host 119.75.217.56 GW 1.2.3.5. After reading the output of tcpdump, the source address will change to 1.2.3.4 immediately. This only proves that the route decides the source address on one network card. What if we want to set the source address to 4.3.2.1? Can I configure a 4.3.2.0 CIDR block on PC2? This address can be configured, but an error occurs when a route is added

650) this.width=650; "src=" Http://s4.51cto.com/wyfs02/M01/7C/D0/wKioL1bYQQCBXApkAAA-JxWt6T0251.png "title=" Qq20160303214719.png "alt=" Wkiol1byqqcbxapkaaa-jxwt6t0251.png "/>1. Experimental RequirementsPC1belong toVlan10,PC2belong toVlan20,PC3belong toVlan30,PC4belong toVlan10. Use DHCP automatically get IP address. The use of single-arm routing technology to achieve full network interoperability.2. Ex

Perfect tutorial version: The ultimate illustration of setting up a TP-Link Wireless route. There are a lot of pictures below, so that you can set up your own TP-Link Wireless route according to the illustration step by step. At present, the market of TP-LINK routing occupies a small market share, on the TP-LINK wireless routing settings also have a lot of questi

communication devices or computers on the Internet. The operation of the station in ancient times is an image of this process. On the internet, routers play the role of forwarding data packets "station. Most popular routers exist in the form of hardware devices, but in some cases, "software routers" are also implemented using programs. The only difference between the two is that the execution efficiency is different. Generally, a router is connected to at least two networks and determines the t

communication devices or computers on the Internet. The operation of the station in ancient times is an image of this process. On the internet, routers play the role of forwarding data packets "station. Most popular routers exist in the form of hardware devices, but in some cases, "software routers" are also implemented using programs. The only difference between the two is that the execution efficiency is different. Generally, a router is connected to at least two networks and determines the t

In many routing protocols, OSPF has many advantages, such as its adaptability to all sizes of the network (up to thousands of routers), no self loop, support zoning, can route classification. Let's focus on the division of the region, and before we start, let's take a look at some basic knowledge about zoning: 1, our network can be seen as the composition of a n

CMD command: Route subcommand 1:route Print View routing table Child command 2:route add static route subcommand 3:route Delete static routes View Use subcommand 1 results as shown below (Note: Red box for dynamic routing [by System management, no need for manual management], green box for static route [can be added or deleted by artificial freedom]) You can see that the

November 28, 2015, the Computer network administrator (Routing and Exchange) Class two training course of the school and Shenzhen Technician College.This is the first training course for the school in Shenzhen, and the second school-Enterprise Joint School after the Guangzhou Business School. The difference is that Guangzhou business School is facing the university students, the training curriculum into the

startup and set to Yes, this device is activated when the system starts)Service Network Restart re-activating the NICModify the DNS configuration file for the corresponding NIC# vi/etc/resolv.confModify the following contentNameServer 8.8.8.8 #google域名服务器Temporary network address configuration (restart failure): ifconfig eth0 192.168.1.254netmask 255.255.255.0Start/Close off

As the network supervisor of an enterprise, Wang supervisor is very familiar with the following problems: as the company's business grows, its branches keep increasing, and the company's network scale is growing. At the same time, voice, video, storage and other network services are also becoming more and more urgent. However, the company's

://SERVERNAME/INDEX.PHP/HOME/NEW/INFO/2 will not match.If defined in the following way, URL access in both ways can match successfully.' New/:cate ' = ' news/category '　　　　　　A fully matched routing rule will not work if an optional parameter is used.Regular routingRegular routing, which is a way of defining routes with regular expressions, relies on powerful regular expressions to define more flexible

Static Routing can also be used for communication between multiple network segments This blog post is sent by Bkjia. My favorite. If you have any questions, go to the blog page for an interactive discussion! Blog: http://dgd2010.blog.51cto.com/1539422/881922 Yesterday, I discussed networking issues with my friends in the machine room. When I talked about communication between routers, my friend asked me w

Today, installing the CentOS 7.1 operating system on a virtual machine, using the minimal installation, when the installation is complete and ready to use the Ifconfig command, the Discovery command does not exist, as follows:I'm sure it's the new CentOS system. By default, the Ifconfig command is not used, and a command should be used instead of the ifconfig.On Baidu a check, sure enough, has used the IP command instead of ifconfig command. The following is a list of common IP command parameter

Yesterday, and friends in the computer room to discuss the problem of networking, when the discussion to the router communication, friends asked why not to configure the routing protocol. It used to be based on configuration manuals or experience configurations and did not carefully consider the issue. Think about it, it should be so understood (as follows). If you want to implement communication between multiple

For various reasons, many networks adopt multi-route protocols. This phenomenon is usually caused by merger and acquisition activities, or temporary occurrence during the migration. Many vro hardware manufacturers may use a variety of proprietary protocols to connect with standard protocols. Some routers will run more than one protocol and inevitably receive the same route from the two protocols. They must make a decision between the two routes when forwarding this packet. The potential problem

In ns2.35, satroute. CC ,~. H implements centralized Routing @@In. H files, there are mainly the following types: 1. satrouteagent ClassSatrouteagent: Public agent Inheritance relationship: Satrouteagent 2. satrouteobject ClassSatrouteobject: Public routelogic Inheritance relationship: Satrouteobject @@In. CC files, there are mainly the following classes: static class SatRouteClass:public TclClass{ public:SatRouteClass ():TclClass ("Agent/SatRoute

For various reasons, many networks adopt multi-route protocols. This phenomenon is usually caused by merger and acquisition activities, or temporary occurrence during the migration. 　　 Many vro hardware manufacturers may use a variety of proprietary protocols to connect with standard protocols. Some routers will run more than one protocol and inevitably receive the same route from the two protocols. They must make a decision between the two routes when forwarding this packet. The potential probl

Dropip netns exec Qrouter01 iptables-T filter-a neutron-l3-agent-iv01-m State--state INVALID-J Dropip netns exec Qrouter01 iptables-T filter-a neutron-l3-agent-iv01-m State--state related,established-J Acceptip netns exec Qrouter01 iptables-T filter-a neutron-l3-agent-ov01-m State--state INVALID-J Dropip netns exec Qrouter01 iptables-T filter-a neutron-l3-agent-ov01-m State--state related,established-j ACCEPT6) Let go of the ping and SSH serviceIP netns exec qrouter01 iptables-t filter-a neutro

Tags: cisco/remote configurationIn actual work our routing and switches are always placed in the room to facilitate our work we need to configure the routing and switches so that we can configure the routers and switches in the office or at home.This is a simple network topology diagram where a computer-connected route configures the switch across