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Tags: switchesSpecifically, refer to the following command:1 Local operation(1) Set password for privileged modeswitch>enable//Entering privileged modeSwitch#configure Terminal//Enter configuration modeSwitch (config) #enable password 123456//set Privileged mode password(2) Enable Vlan1 and configure IP addressSwitch (config) #interface vlan 1//Enter VLAN1Switch (CONFIG-IF) #no shutdown//Open Vlan1Switch (config-if) #ip address 192.168.1.100 255.225.255.0//Configure IP address for VALN1(3) Set t
Cisco switches: Show logging found the following log on the central switchAPR 10:24:16.265:%ip-4-dupaddr:duplicate address 172.30.30.62 in Vlan711, sourced by 0009.6b84.189e; description has ARP virus,2, the implementation of Conf t,mac-address static MAC address VLAN ID drop;3, the host has the ARP virus processing, and then on the central switch executionNo mac-address static MAC address VLAN ID drop, whi
The following describes how to use a Cisco switch and how to operate it. When we debug a switch, the switch displays the details of each port in sequence, this includes port disconnections and explains the accumulated information.
Cisco is the main force in the entire vswitch. Its products are doing very well in the market. The following article will detail some of the usage skills and precautions of
The Cisco 4500 series with Huawei's 9300 series switches is positioned in the product line of the entire switch product. All belong to the enterprise core-level switch equipment, today the Cisco 4500 series and Huawei 9300 Series as an article, one is that these 2 products are currently in the enterprise application of a very wide range of equipment, whether it i
MSTP intercommunication between Cisco and H3C switches 1. MSTP introduces the concept of "INSTANCE" INSTANCE and "REGION" REGION. An instance is a collection of multiple VLANs. In this way, you can bind multiple VLANs to an instance to save communication overhead and resource usage. "Domain" is determined by the domain name, revision level, and format selector. The relationship between VLAN and instance. Th
takes more time to set Intel vswitches. VTP protocol is not supported on Huawei 8016 devices, VTP protocol is supported on other devices 2026 and 8016, and VLAN1 cannot be configured on, therefore, the network segment of the network management device must be adjusted to other VLANs other than vlan1. in this way, the management VLAN of the TRUNK port should also be changed. CISCO uses the native vlan command, While Huawei uses the default vlan command
I. Network Complexity
General networks include routing, dialing, switching, video, WAN (ISDN, frame relay, ATM ,...) , LAN, VLAN ,...
Ii. Fault Handling Model
1. Define the Problem)
Detailed and accurate description of fault symptoms and potential causes
2. collect detailed information (Gather Facts) R> Source: key users, network management systems, routers/Switches
1) identify symptoms:
2) Repeat the fault: The verification fault still exists
3) faul
It's classic. I use it.DeploymentsThe deployments in this document were implemented in an isolated lab environment. the deployments were cleared by issuing the write erase command on the routers, and the clear config all command on the switches to ensure that all devices have a default configuration. make sure you understand the potential impact of any configuration or command on your network before using it.Catalyst 6500 SwitchNote: The following scr
the above technologies on CISCO switches to address typical Layer 2 attacks and spoofing, to prevent man-in-the-middle attacks, MAC/CAM attacks, DHCP attacks, and address spoofing in the exchange environment, more importantly, address management can be simplified through the deployment of the above technologies, track user IP addresses and corresponding switch ports directly to prevent IP address conflicts
Switch Stack-ports displays full port information for the stack switchStacking common, at present in some financial, logistics enterprises are very common, and the other side of the enterprise is not bad money, as long as the program is reasonable, the budget cost is not very small, so here again to emphasize the professional quality of the network workers have been seasoned pre-sales program capabilities.Think of learning as a living habit.-----------is shared by a network of two-tier operator
Overview of LAN Switches
The LAN switch has developed into a more expansive space from the traditional hub-and-LAN. For example, Cisco's Catalyst 5000 series LAN switch includes an integrated switched hardware architecture that supports switched 10-mbps Ethernet and 100-mbps Fast Ethernet, with Fast Ethernet, FDDI, switched token Ring, and layer 3rd switching capabilities. This class of switches can provid
Release date:Updated on:
Affected Systems:Cisco NX-OS 5.xCisco Nexus 7000 Series SwitchesDescription:--------------------------------------------------------------------------------Bugtraq id: 55600Cve id: CVE-2012-3051
Cisco NX-OS is a data center-level operating system that represents a modular design, always-on and maintainability.
The Cisco Nexus 7000 series switche
describe how to combine and deploy the above technologies on CISCO switches for typical Layer 2 attacks and spoofing, to prevent man-in-the-middle attacks, MAC/CAM attacks, DHCP attacks, and address spoofing in the exchange environment, more importantly, address management can be simplified through the deployment of the above technologies, track user IP addresses and corresponding switch ports directly to
To prevent IP address theft or employee IP address tampering in a Cisco switch, you can take the following measures: binding an IP address to a MAC address and binding an IP address to a vswitch port.
1. Check the port through IP Address
Check the MAC address first, and then check the port based on the MAC address:
Bangonglou3 # Show ARP | include 208.41 or show Mac-address-table to view the IP-Mac table of the entire port
Internet 10.138.208.41 4 00
distribution layer and the access layer, we need to adopt a comprehensive enterprise security policy to protect the entire network and the connected system.
In addition, even when a worm occurs, we need to take measures to minimize its impact and protect our network infrastructure to ensure stable network operation. This article describes a unique solution on a Cisco Catalyst Switch to prevent the harm of worms in a very economical, effective, and sc
Layer-3 Switch for Cisco switches
Although single-arm routing solves the communication problem between different VLANs, it also has its fatal defects:
-The single arm itself is the Backbone link of the network, which is easy to form a network bottleneck.
-The sub-interface relies on physical interfaces, and the application is not flexible
-You need to view the route table for each vlan forwarding, wasting
Layer-3 switches of Cisco devices practice communication between different VLANs.
Layer-3 switches of Cisco devices practice communication between different VLANs.
Cisco device layer-3 Switch implements communication between different VLANs
Prepare four PCs, four L2
This document describes how to configure a Cisco switch in two ways, configures some ancillary services, and provides detailed configuration steps and configuration commands.
There are two methods to configure a Cisco switch:
1. Console: You can directly configure a Cisco switch.
2. Remote Logon (Telnet): Use the TELNET program to remotely configure a vswitch wit
Cisco PT Simulation Experiment (5) port aggregation configuration for switchesExperimental Purpose :Understanding Port Aggregation FundamentalsMaster the configuration method of general switch port aggregationExperimental Background : The company's finance department and the sales department of the PC through 2 switches to communicate frequently, in order to improve the bandwidth between links, to ensure th
I believe that many users who use CISCO switches have encountered many problems. Here we have analyzed how to solve common problems of Cisco switches. The data of Cisco switch 03 is a complete database file, the default file name is bam date. dat: Normally, BAM automatically
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