cisco rv042

In the real world or laboratory environment, Cisco IOS test commands are very useful and powerful commands. Learn the basic usage of this command and learn a few useful sub-commands. This is not surprising if you have never used the Cisco IOS test command. I have met many network administrators who have never heard of this command. Based on my experience, this test is a very useful and powerful command in b

This article describes in detail how to improve OSPF security for Cisco routers. This article describes how to improve network security in terms of protocol analysis and router authentication solutions. OSPF is also an open version of The Link Status Protocol. In practice, OSPF is often used in some large and hybrid networks. In the previous article, I talked about the defects of the RIP Protocol. The reason why network experts develop the OSPF protoc

Hello everyone, the recent development of Huawei is very good, especially in the domestic to Cisco's strategy, many friends will ask me a question, I should go to learn Cisco or to learn Huawei?Let me take this opportunity to discuss with you.Just from the direction of the routing switch (Cisco is called Rs direction, Huawei called the digital direction), technically speaking, the difference is not very lar

In CISCO router products, we usually need to restrict the access of general users during initial configuration. This is very important for Routers. By default, Our routers are an open system and the access control options are all disabled, any user can log on to the device to initiate further attacks, therefore, our network administrator needs to configure a password to restrict unauthorized users from accessing devices through direct connections, CON

Update #2: This article has been updated over at http://retrorabble.wordpress.com/2013/10/12/cracking-cisco-password-hashes-part-2/ UPDATE: See bottom of post for a way to run MD5 cracking on Linux Well, I managed to find this information out by phoning Cisco directly, and since most of the information on this subject seems to be either plain wrong or incomprehensible rubbish spouted by people with no idea

A few days ago the user called to say that the administrative building wireless network is not good use, all the APS are bright red! Very strange, because the day before the use is normal, how all the bad use it? Rushed to the user site login WLC, found on the WLC a lot less APS, and these APs are 1131, the other models of 1142, 1602 are working properly, is it really bad?View WLC log, see log, Trance Remember to see an article, said is AP because use certificate problem can not notice on the co

Welcome to the network technology community forum, and interact with 2 million technical staff to enter the settings and skills of the two CISCO switches, mainly: Cisco switch setup skills to find the MAC address corresponding to the IP address, cisco switch setup tips: Find the port corresponding to the MAC address on the switch. The IP address of a machine is k

When using a cisco router as an Internet Router, cisco's IP packet filtering function is generally used to count IP traffic. The method is to add the ipaccountingoutput-packets command at each entrance of the cisco router. The cisco router automatically counts the IP traffic of these ports. Common snmp or telnet terminal simulation (showipaccount) methods to obta

After decades of development, from the first four-node ARPANET to the ubiquitous Internet, computer networks have penetrated into our lives. With the explosive growth of the computer network scale, as a router to connect devices also become more important. When a company builds a network, how to reasonably configure and manage the router becomes one of the important tasks of the Network Manager. This topic describes how to configure a cisco router fro

Install Cisco Packet Tracer in Linux What is Cisco Packet tracer? Cisco Packet Tracer is a powerful network simulation tool used for Cisco authentication training. It provides us with a good interface view for various routers and network devices. These simulation devices have many options. Like physical machines, we c

, it is enough to explode any despise linuxer of those na/np/ie.If I say: Ping the address with the source X (this sentence has an implicit thing, that is, you have to get a loopback, the source you want to bring up, but if you say it out, it appears layman). You must think I am a na/np/ie, because for linuxer, there is no "with the source" such as the saying, nor often use this, usually directly ping, not through the stare ... With the source Ping, the general will be configured on the network

！！ Using the Telnetlib Library1 topologiesR4, R5 are not routed to 1.1.1.1 and 2.2.2.2 when the script is not running:The configuration document is placed in the same directory as the Python script:After running the Python script:-process=image/watermark,size_16,text_qduxq1rp5y2a5a6i,color_ffffff,t_100,g_se,x_10,y_10,shadow_90,type_ zmfuz3pozw5nagvpdgk= "alt=" Python configures Cisco network devices via Telnet/>Success!#conf.py 文件import timefrom telne

The following three options are available in Cisco, and Scenario 1 and Scenario 2 implement the same functionality, which is to bind a specific host's MAC address (the NIC hardware address) on the specific switch port. Scenario 3 is the MAC address (NIC hardware address) and IP address of the specific host that is bound on the specific switch port.1. Protocol Port-based MAC address bindingFor example, the Cisco