CISCO has become a leader in the switch industry, so I have studied the comprehensive performance of CISCO switch 2950. I would like to share it with you here, hoping it will be useful to you. Fixed installation of wire speed fast Ethernet desktop CISCO switch 2950, can provide excellent performance and functionality for LAN. These independent, 10/100 adaptive
The experiences of successful users are undoubtedly very important to us, because they not only know the road to success, but also know the road to failure, these experiences are of great reference value to latecomers. Friends who have already passed ccna are very willing to share their experiences with you.
Some netizens collected some experiences and sorted them out, hoping they could help those who are preparing for the ccna exam.
Winner 1:
It is not difficult to test questions. It is mainly
The IP phone number is a star product in Cisco Unified Communications. Everyone knows that, as an IP-based voice mode, it is very cost-effective. Naturally, this market is also very optimistic. Now let's take a look at Cisco's Unified Communication telephone and communication devices.
Cisco Unified Communication telephone and communication equipment
SIP provides a standard-based method for connecting compat
At present, Cisco routers have a very high market demand. Here we mainly introduce the use of OSPF to solve the defects of the RIP route information protocol, including the OSPF Authentication Method. 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 protocol
Https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/7-x/security/configuration/guide/b_ Cisco_nexus_9000_series_nx-os_security_configuration_guide_7x/b_cisco_nexus_9000_series_nx-os_security_ Configuration_guide_7x_chapter_01.html
Feature
Description
Changed in Release
Where documented
IP ACLs
Added IPV6 Wildcard mask support for access lists and object groups for Cisco Nexus 9200, 9300-e
Through introduction to Cisco's Unified Communication System, I believe everyone has a certain understanding of the services it contains. Now, to address these solutions and the unique needs of enterprises, let's talk about Cisco's Unified Communication solution. With these targeted solutions, readers can better understand the role of Unified Communication.
Mobile Solutions
Cisco provides multiple Unified Communication Solutions for mobile employees w
Cisco routers use many methods in configuration. Using SSH instead of Telnet cisco makes it easier for us to understand the configuration of cisco routers and other knowledge points.
Replacing Telnet with cisco router configuration using SSH The Telnet protocol is a member of the TCP/IP protocol family and is the stand
interface IP address from the host. If you are usingWindows 95 or Windows NT, click Start>run to start the Telnet session. For exampleIf the internal interface IP address is 192.168.1.1, enter the following command. Telnet 192.168.1.1
Step 2
The PIX firewall prompts you to enter a password:PIX passwd:Enter Cisco, and then press ENTER. You are logged on to the PIX firewall.The default password is Ci
Cisco router knowledge has become more and more widely used in modern enterprises. Next we will briefly learn about the secure router configuration solution.
Knowledge of nine Cisco routers required by network engineers
1. Are the routing protocols supported by Cisco routers compatible with those of other manufacturers?
In addition to IGRP and VPN, one of the
Any new services provided by XB company are striving to meet four standards. First, services must be complete and scalable and flexible; In addition, services must be easily managed so that the XB network can provide the best service to its customers and ensure the reliability of the services. After comparing the firewall products of another vendor, the XB network chose Cisco's Cisco ios® Firewall product and Cisc
How to back up configuration files for Cisco, ruijie, And Juniper Devices
For a company of a certain scale, network device configuration file backup is also a task that cannot be ignored, to prevent one day after your network device fails, you can recover in the shortest time, reduces losses for the company.
The following describes the backup operations for several devices:
I. Specific ideas:
1. Download ftp software and TFTP Software
2. Configure the
Ciscoswitch password reset steps1.PCMachine has Breakmethod of the key1.1Interrupt Device startup Ctrl+break keyStep: Turn off the device and restart:Self decompressing the image: Press the Ctrl+break key when you start the device ##########################Monitor:command "Boot" aborted due to user interrupt1.2change the value of the configuration register to 0x2142(Two register values:0x2102 (Normal),0x2142 (do not read the saved configuration))steps: Rommon 1 > Confreg 0x2142 Configure the
Cisco 2800 Password cracking1. Restart the router byCtrl + BREAK +FNKey to enter monitoring mode2. Modify the Register value to change the start orderRemmon>confreg 0x21423. Restart Routing in monitoring modeRemmon>resetLook, here we go into the system. User mode no passwordRouter>enablerouter#Copy Start Running-configDestination filename [running-config]?552 bytes copied in 0.416 secs (1326 bytes/sec)We en
Users who use Cisco switches have encountered many problems. Here we mainly analyze the failure and solution of Cisco switches triggered by IOS. Summary of the fault recovery solution for Cisco switches triggered by IOS, today's topic on preventing Cisco switch faults is discussed about how to cope with
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
How to configure IP address and MAC address on a Cisco switch binding Content Summary: at present, many of the company's internal network, has adopted the MAC address and IP address binding technology. Here we will introduce the configuration of IP address and MAC address bindings for Cisco switches. Description: at present, many of the company's internal network, has adopted the MAC address and IP
We know that there are four types of firewalls: integrated firewall capabilities of the router, integrated firewall capabilities of the proxy server, a dedicated software firewall and dedicated hardware and software combined with the firewall. Cisco's firewall solution includes the first and fourth of the four types: the integrated firewall feature router and the dedicated hardware and software combination firewall.
One, integrated in the router's firewall technology
1. ACL technology in router
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.