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An example of Cisco Easy VPN comprehensive configuration is shown in this example. The topology is 15-15. In this example, the Cisco 831 router is used as the remote device of Easy VPN and the Cisco 1751 router is used as the device of Easy VPN Server. In this example, the WAN interface IP addresses of the Cisco 1751 r

I have learned some useful questions about the password of a Cisco router. So I have studied how to use the password to protect a Cisco router. I would like to share it with you here and hope it will be useful to you. The most serious cause of security problems is often because people ignore the most basic security measures. In this article, David Davis will discuss with you the importance of using password

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 is a party (enterprise management) or party B

Dhcp snooping SummaryConfiguration on a cisco deviceIn a cisco network environment, when a device with the dhcp snooping feature enabled, the boot request inserts option 82 in the DHCP packet. For details, see RFC3046, the gateway ip address in the packet in the boot request is 0, so once the dhcp relay device detects such a packet, it will discard it.Although dhcp s nooping is used to prevent illegal dhcp

10/1-12 Set port channel 10/1-4 off Set port channel 10/5-8 off Set port channel 10/9-12 off Set port channel 10/1-2 on Set port channel 10/3-4 on Set port channel 10/5-6 on Set port channel 10/7-8 on Set port channel 10/9-10 on Set port channel 10/11-12 on # Module 11 empty ! # Module 12 empty ! # Module 13 empty ! # Switch port analyzer ! Set span 1 1/1 both inpkts disable Set span disable ! # Cam Set cam agingtime 1-2,777,888,100 3, 300 End 5500C>

This article describes how to make the right choice for a CISCO router. Here I will share some of my experiences in choosing a Cisco router. It may be helpful to everyone. When deploying a LAN, A vro is one of the essential devices. Cisco is the leader in the field of routers and other network equipment. He is also a brand that many network administrators must co

When routers and switches work normally, you do not need to worry too much about wiring issues. However, when the network encounters problems or changes, wiring knowledge may be of great help to you. In this article, we will introduce you to some basic wiring knowledge, and describe the details of the Cisco console dedicated network cable. The network cable belongs to the first layer of the Network: physical layer. Only the correct network cable can e

Visio OS opera linux ieCisco Systems IOS is vulnerable to a denial-of-service attack using ICMPRedirect messages.When flooded with ICMP redirect messages, the IOS uses up all its memoryTo store the new host routes. The device is then unable to performOperations that need additional memory such as processing ing routing updatesAnd accepting inbound telnet (1) connections.DETAILSKnown vulnerable combinations:* Cisco 1005 with IOS 11.0 (18)*

Today's recommendation: cisco switch module Ethernet application details, familiar with the following cisco switch module knowledge point, you only need to spend a few minutes to understand the cisco switch Module Settings. There is also a diagram below, and other related information will be mentioned in this article. As an important

This article mainly introduces how to quickly configure the Cisco Router Network Assistant and provides specific operation steps. I believe this article will benefit you a lot after reading it. Cisco provides Cisco Network Assistant CNA, a free tool for small and medium-sized enterprise SMBs, to help you configure Cisco