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The reasons for the high and low price of routers Different routers distinguish the price of the main because (1) different function Although the basic functions are the same, but some router differences also built into other more practical

PIM is the abbreviation of Protocol Independent Multicast (protocol-independent multicast), which means that it can provide routing for IP multicast by using a unicast routing table generated by static routes or any unicast routing protocol

One, topology map Second, the experiment in the point-to-point sub-interface environment of the OSPF experiment Third, the configuration 1. Package the physical interface into FR mode R1#show Run int s0/0 Interface serial0/0 No IP address

Overview In the early 80, the mobile communication system, which was mainly characterized by analog technology, was called the first generation mobile communication system. The digital mobile communication system, which was commonly used in the 90

1. Characteristics Use the Tcp179 port to build a neighbor, not to use multicast or broadcast, so you can only set up a neighbor by hand unicast 2. Four kinds of packages Open package: For building a neighbor relationship, use only when building

Huawei VRRP Virtual Router Redundancy protocol redundant Backup load balancing (also so simple) Configure on a 2-tier exchange: sy into view mode [Huawei]un in EN cancellation message [Huawei]sysname SW1 Change Name [Sw1]vlan 10 Add VLAN

As one of the most hot access technology, wireless access technology by the operators, especially the new operators generally optimistic, the national radio Regulatory agencies also issued a specific frequency planning, it is evident that everyone

Sumitomo Electrician developed a cable for home optical fiber communication lines for underground wiring. For the beauty of the urban environment and the charming scenery, the cable grounding project becomes more and more important, and the

Experimental purposes: Run a manual tunnel between XP and the router to deliver the IPV6 on the IPv4 network Experiment topology: XP configuration: The first step is to configure IPv4 Second Step configuration IPv6 R2: Interface

Topological structure Configure all code on the Router1 Router>enable Router#conf Router (config) #int f0/0 Router (config-if) #ip address 192.168.0.1 255.255.255.0 Router (config-if) #no shutdown Router (config-if) #int s2/0 Router

1. Distance Education Solution With the development of information technology and Internet, as well as the increasing number of netizens, the bottleneck of Internet access has become more and more, so the mode of distance education adopted by

First, the introductionError control technology plays an important role in improving the reliability of communication system. RS code has a strong ability of correcting errors, which can correct random errors and rectify sudden errors, and is widely

MIP (mapped IP) A mapped IP (MIP) is a direct one-to-one mapping from one IP address to another IP address. The NetScreen device forwards an inward flow of information destined for MIP to a host addressed by MIP. In fact, MIP is a static target

The UM interface is a GSM air interface. The communication protocol on the UM interface has 5 tiers, from the bottom up to the physical layer, the MAC (Media Access control) layer, the LLC (Logical Link control) layer, the SNDC (subnetwork dependant

As more and more friends enter the "wireless" family, the safety of wireless networks has attracted much attention. In contrast, wireless is more difficult to protect than a wired network, because the number of fixed physical access points in the

A. Test topology: Two. Test ideas: A. Headquarters ASA does not configure the tunnel separation, branch office all traffic to go VPN B. Headquarters ASA configuration NAT Allow Branch segment pat on public net ----Because the branch traffic

Experimental environment: Firewall fg200b, System for v4.0,build0313,110301 (MR2 Patch 4) Active Directory DC, System for Windows Server 2008 R2 1, expand set user → remote →ldap and create new 2, name random, here is test 3, IP address of

The first step is to create the local and end-to-end encryption methods, etc. If it is not very well understood, it is recommended to use the default PRE-G1-DES-MD5, both ends of this. If the end is already defined, you need to customize it here

TD-SCDMA is "time division-synchronous code Division Multiple Access" abbreviation, the Chinese meaning is "cent synchronous code division multiple Access", this communication technology also belongs to a kind of wireless communication technical

Description This document describes the message content filtering configuration for all fortigate devices. FortiGate can identify and filter message content. All mail filtering functions need to send and receive mail using mail client software