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This article uses VPN technology to achieve interconnection between two parts of the network, simulate ISP, close to practicality, the article mainly shows us the specific operation steps, mainly the input of basic commands. In this experiment, we use the Cisco 2600 router and VPN technology to achieve the network interconnection between one branch and two parts. To stay close to practicality, we still use Cisco
Tags: HSRP working principle STP effect ACL access control List loop storm Cisco private protocolDay 031. What is HSRP? How does it work?HSRP: Hot Standby Routing protocolHSRP is a Cisco private protocol that ensures that user communication can be quickly and transparently restored when a network edge device or access link fails.This provides redundant rows for the IP network. By using the same virtual IP a
One of my customers has a VPN which I 'd like to access. they provided me with a copy of the Cisco VPN Client for Linux, and a "PCF" configuration file for the client. here's what I had to do to get the Cisco VPN Client working in Linux-and it does work just fine. First we make a directory to put the bits and bobs in alan@hactar:~$ mkdir ciscoalan@hactar:~$ cd cisco
"Introduction" Within a switched network, it is possible to segment and organize flexibly through VLANs. VLANs can group devices in a LAN. A group of devices in a VLAN communicates as if it were connected to the same line. VLANs are based on logical connections, not physical connections. Types of VLANsThere are many different types of VLANs used in modern networks. Some VLAN types are defined by traffic category. Some other VLAN types are defined by specific features.Data VLAN: used to deliver u
Automatic backup and fallback of Cisco iOS profiles requires the use of the Archive Archive configuration mode feature of iOS. In general, only the version number of iOS has the Archive configuration mode feature in 12.3 (4) Cisco iOS profile automatic backup All commands are as follows: router> Router>enable Router#configure Terminal Router (config) #archive Router (config-archive) #write-memory
Trunk Link Trunk: Same inter-VLAN communication on different switchesHow to play tag tag encapsulationPackage Type: IEEE 802.1q/cisco ISLIEEE 802.1q:4 Bytes, internal encapsulation, publicCisco isl:30 bytes External encapsulation, privateSwitch port configuration mode: Trunk/acces (OFF)/Dynamic desirable/dynamic AutoTwo auto NO mode of operation generally either trunk or accessEthernet Channel: Multiple physical ports to form a logical port for greate
Cisco Unified Communication Components Cisco®The Unified Communication System has five basic components. IP phone number Call Processing SoftwareTelephone and terminalUnified Communication Application Unified Communication ClientMessage ProcessingMultimedia ConferenceContact Center ApplicationCommunication InfrastructureManagement toolsIP phone numberThe IP telephone software enables enterprises to run voic
(HSRP)Direct Connect Ping PassTarena-r1 (config) #interface f0/0TARENA-R1 (config-if) #standby 1 IP 192.168.1.254TARENA-R1 (config-if) #standby 1 priority 200 PrioritiesTARENA-R1 (config-if) #standby 1 preempt preemptive rightTARENA-R1 (config-if) #standby 1 track F0/1 port trackingTarena-r2 (config) #interface f0/0TARENA-R2 (config-if) #standby 1 IP 192.168.1.254 act as IPTARENA-R2 (config-if) #standby 1 priority 195 PrioritiesTARENA-R2 (config-if) #standby 1 preempt preemptive rightTARENA-R2
Tags: tle simulates a trunk mode ace 51cto fast spanning tree quick typeLoops are present in the network, and all loops are formed due to confusion caused by ambiguous destination paths. The loop has a great impact on the network. Spanning Tree protocol is a good solution to this problem.The idea of spanning a tree protocol topology is that, regardless of the physical connection between switches, the switch can automatically discover a network with no loop topology, and the network of the logica
PIX 515E Product Essentials and application environment Cisco PIX 515E Firewall Application Environment Cisco PIX 515E is an enhanced version of the widely used Cisco PIX 515 Platform, which provides industry-leading state firewalls and IP Security (IPSEC) virtual private network services. Cisco PIX 515E is designed fo
As a leader in the routing industry, there is a lot of market demand. Here we mainly analyze the Cisco router configuration issues. Cisco SDM is based on Cisco IOS? An intuitive Web device management tool developed by Software routers. It simplifies Cisco router configurations through smart wizard, so that customers an
In the previous article, we briefly introduced the IP telephone services of Cisco's Unified Communication System. Here, we want to give you a comprehensive understanding of this system, we will continue to introduce other parts. First, let's review the summary mentioned above. Cisco Unified Communication System Cisco Systems Company reg; leverages its wide range of products to provide a solution that can me
(Config-router) #exitIf this is all configured, then use the ping command to test it!Here is a start-up-configuring HSRP Hot Spares:Configure on the active three-layer switch:Switch (config) #interface vlan 1Switch (config-if) #standby 1 IP 192.168.1.254Switch (config-if) #standby 1 priority 200Switch (config-if) #standby 1 track fastethernet 0/2Switch (config-if) #standby 1 preemptConfigure on the backup layer three switch:Switch (config) #interface vlan 1Switch (config-if) #standby 1 IP 192.1
Cisco Unified CallManager is a call processing component in Cisco Unified Communication system. It is a scalable, distributed, and highly available enterprise IP voice call processing solution. By supporting the enhanced features of the Session Initiation Protocol (SIP) SIP user line side and the SIP relay side, Cisco uniied CallManager version 5.0 enhances the f
Cisco SDM is a good tool for vro security configuration. It features easy to learn and allows users to easily complete vro settings. Cisco SDM is based on Cisco IOS®An intuitive Web device management tool developed by Software routers. It simplifies router security configurations through smart wizard, allowing customers and C
Previously, we introduced the Cisco Unified Communication System Structure and the IP address telephone part through the article. You should have some knowledge about it. In addition to the above two parts, we will now introduce other services to help you understand Cisco products. Although these standard-based systems can be shared with a large number of third-party phones,
Lab device:One cisco 3640 router, one PC, one Console cable, and one crossover cableTutorial topology: Experiment process:Step 1: log on to the vro through the console cable, and use the Super Terminal or SecureCRT to complete basic configuration. At the same time, connect the cross-line to the vroe1 E1/0. t. Configure the IP address 192.168.10.1 on the PC interface, mask 255.255.255.0Router gt; enableRou
Case topology Map Cisco (3640) realizes Step 1: The basic configuration of a router A (config) #do Sho run Building configuration ... Current configuration:1410 bytes ! Version 12.4 Service Timestamps Debug DateTime msec Service Timestamps log datetime msec No service password-encryption ! Hostname A ! Boot-start-marker Boot-end-marker ! ! No AAA New-model Memory-size Iomem 5 ! ! IP
After Michael Lynn, a security researcher, resigned from ISS (Internet Security System), despite the obstruction of Cisco and ISS, last Wednesday, a Black Hat Security Conference demonstrated how to use vulnerabilities to attack and control Cisco routers, which aroused an uproar in the industry, and the public image of Cisco and ISS also plummeted. On the second
The SIP Protocol provides a standard-based IP communication method for multiple devices and applications. This White Paper describes the support for the SIP protocol in the Cisco communications system. Cisco's Unified Communication System includes IP voice, data and video communication products and applications, which can help organizations communicate more effectively, simplify business processes, and achieve higher incomes.
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