cisco csa

Subnet Mask hardware basic Ethernet protocol Network Management A router is a bridge of a computer network and a core device connecting to an IP network. It can connect different networks, select data transmission routes, and block unauthorized access. Router configuration is not easy for beginners. Take the Cisco router as an example to introduce the general knowledge and configuration of the router for your reference When configuring the ro

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

I would like to introduce how to obtain the IP traffic of a Cisco router. Many people may not know how to retrieve the IP address of a Cisco router. It does not matter. After reading this article, you will certainly have a lot of GAINS, I hope this article will teach you more things. A router is a bridge of a computer network and a core device connecting to an IP network. It can not only connect to differen

A Cisco router is a commonly used routing product in large and medium-sized networks. As a core router, It is the soul of the entire network. If the Administrator is improperly set, the security deployment may be taken over by attackers if it is not in place. In that case, all the networks under it will fall, and the extent of its harm is self-evident. 1. One Security Test (1) take over the Cisco Router I r

1. CISCO starts the product is the router;2. RSP starts with the CISCO7500 series of engines;3. VIP start-up products are the Cisco 7500 series of multi-functional interface processor modules;4. The products that start with PA are modules of the Cisco 7500/7200 Series products;5. The NPE starts with the CISCO7200 series engine;6. NM starts with the

Users using Cisco routing, many of them do not pay much attention to doing Cisco router configuration work, in fact this is a very important part, especially for our network security. There are several ways to do Cisco router configuration. The configuration can be done by the TFTP server over the network, through the menu interface provided at startup, and by th

I believe you should all know that the different speed limits of the router are not the same, I will mainly for Cisco router settings, the details of Cisco router speed limit and its methods. Nvar speed limit of Cisco router BT software now blocked will automatically change the port, some software or use 8000, 8080, 2070 and other ports, restricting these po

The Cisco Secure PIX 525 Firewall is part of the world's leading Cisco Secure PIX Firewall series, providing unmatched security, reliability, and performance for today's network customers. Its full firewall protection and IP Security (IPSEC) virtual private Network (VPN) capabilities make it particularly appropriate to protect the boundaries of enterprise headquarters. Strong security FeaturesThe developme

In the Cisco router product, we usually need to use restricted access for general users when we initially configure. This is very important for routers, by default, our router is an open system, access control options are turned off, any user can log on to the device for further attack, so we need our network administrator to configure the password to restrict unauthorized users through direct connections, Console terminals and access devices from the

The advantages of configuring registers in Cisco routes are of great interest to you. Before giving you a detailed introduction to the advantages of configuring registers in a Cisco Route, let's first take a look at the basic process of configuring registers and then compare the advantages and disadvantages of the following methods. All Cisco router devices have

It is very useful to know some basic configuration statements about Cisco routers. The configuration can ensure the security and performance of our networks. Here we mainly analyze the basic configuration statements of Cisco routers. Cisco router basic configuration DDR:Router (config) # dialer-list Group-Number protocol Protocol-Type permit [list ACL-Number]Rout

Release date:Updated on: Affected Systems:Cisco SA540 2.1.18Cisco SA520W 2.1.18Unaffected system:Cisco SA540 2.1.19Cisco SA520W 2.1.19Description:--------------------------------------------------------------------------------Bugtraq id: 48810Cve id: CVE-2011-2547 Cisco SA 500 series security devices are integrated security solutions for small businesses with less than 100 employees. A remote command injection vulnerability exists in the implementatio

Release date:Updated on: Affected Systems:Cisco IOS 15.xCisco ios xe 3.xUnaffected system:Cisco IOS 15.1 SGCisco IOS 15.0SACisco ios xe 3.6.0SCisco ios xe 3.2.xSGDescription:--------------------------------------------------------------------------------Bugtraq id: 52755Cve id: CVE-2012-0384 Cisco's Internet Operating System (IOS) is a complex operating system optimized for Internet connection. When Cisco IOS software uses AAA authorization, there is

Cisco IOS/ios xe SSHv2 body verification Bypass Vulnerability (CVE-2015-6280)Cisco IOS/ios xe SSHv2 body verification Bypass Vulnerability (CVE-2015-6280) Release date:Updated on:Affected Systems: Cisco IOSCisco IOS XE Description: CVE (CAN) ID: CVE-2015-6280Cisco IOS is an interconnected network operating system used on most

Cisco Jabber for Windows STARTTLS downgrade Vulnerability (CVE-2015-6409)Cisco Jabber for Windows STARTTLS downgrade Vulnerability (CVE-2015-6409) Release date:Updated on:Affected Systems: Cisco Jabber for Windows 11.1.xCisco Jabber for Windows 11.0.xCisco Jabber for Windows 10.6.x Description: CVE (CAN) ID: CVE-2015-6409Cisco Jabber for Windows is a Unified Com