network routing tutorial

Article Title: Traditional network configuration commands and IP advanced routing commands. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Knowing how to configure network commands is a must-have technique for general technic

Hot Backup Routing protocol Hsrp:cisco Private protocolEnsures that when the network edge device or access link fails, the user communication can be quickly and transparently restored to provide redundancy for the IP network, by using the consent virtual IP address and virtual MAC address, two or more routers on the LAN segment can be used as a virtual router for

NetstatNetwork status, displaying information such as native network connections, running ports, and routing tablesRelated options　　 -A display native all connections and listening ports　　- N Displays the currently established valid connections and ports in the form of a network IP address　　- r Display routing table in

data frame, and then check the MAC Address table to get out of the corresponding interface.IP address is effective throughout the network, the entire Internet network is the equivalent of a large map, also know how to get all the IP address, then in the transmission of the source IP and destination IP will not change. When the router receives the packet, check the destination IP address of the packet, then

With the increase of network and the increase of the number of machines to be managed, the fault diagnosis and network analysis have become the content of large workload for network managers such as Enterprise network and Internet bar. Also important to the administrator is how to understand the normal use of the

Believe that many Internet users will directly or indirectly "deal" with broadband routers, but in the long-term use of broadband routers in the process, people will not look at it, even if the network has a variety of access failures, people rarely think that network failure and broadband router-related! In fact, Broadband routers and other common network connec

As the network grows and the number of machines to be managed increases, fault diagnosis and network analysis have become a heavy workload for network administrators such as Enterprise Networks and Internet cafes. It is also important for administrators to know how to use the network at ordinary times and quickly ident

Linux dual-Network Policy Routing script instance-(better)-Linux Enterprise Application-Linux server application information, the following is a detailed description. The dual-network architecture is much more complex than the single-network architecture. First install the Linux advanced route package and use the ip c

data transmission is used, we need to know the MAC address of the target host, and how can we know its MAC address? Hey .. Remember.This is not the ARP (Address Resolution Protocol) we learned. In router2, we first send ARP, find the Mac, encapsulate the Mac into frames, and then send data.5. If data is received successfully, a message is returned. This is a simple model with developed data in multiple networks,The IP datagram only records the source IP address and destination IP address in the

the subnet mask, Gateway is the next hop address, iface is the sending interface, and the U mark in flags indicates that the entry is valid (some entries can be disabled ), the G flag indicates that the next hop address of this route entry is the address of a vro, And the entry without the G flag indicates that the destination network address is a network directly connected to the local interface and does

Cisco L3 switch Policy Routing for network access and Traffic DistributionI. Description of the solution environment 1. There are two groups of Group1 and Group2 in the environment, respectively, to access the Internet from two different network outlets. 2. The core network is a Cisco 3560G layer-3 Switch with four VLA

Long time no update blog, sin Sin, and found recently some sites are always stealing my open source Chinese blog content, despise! Business: Business needs, a server, dual network cards, need to access both the external network and intranet. In the setup process, colleagues reflect the original use of the intranet address (192.168.1.100) in the setting of the Sisu netw