value of the temporary self-reverse Access Table item. The default value is 300 s, you can modify the global timeout value through ip reflexive-list timeout in global mode or set the timeout value in the corresponding application line, which takes precedence over the global setting value ).
The basic format of the anti-list is:
Ip access-list extended xxx
Permit protocol source destination reflect name [time-out seconds]
Ip access-list extended yyy
Evaluate name)
Finally, it is enabled on the i
Cisco routers are the leader in the routing industry. Their product quality is still very good. Cisco Wireless AP is also one of Cisco's most important products. Requirement Overview: A Cisco Wireless AP is used to build an enterprise wireless LAN. A user's notebook can log on to the wireless network without adding an AD domain. the user name and password of the
This article will discuss the importance of maintaining the password security of a Cisco router, explain the Cisco router mode, and show readers how to configure five passwords for a vro to protect network security.
Causes of vro security protection using passwords
First, as a Cisco device administrator, we must realize that vrouters do not have any automated pas
This article describes how to quickly install and maintain a vro from the aspects of control port interface connection, initialization and installation, and troubleshooting and detection of common routing faults. See the detailed description below.
A terminal or PC configured with a Cisco router must also use a valid power supply. Cisco synchronous serial interfaces are commonly used. Different interfaces c
The Cisco router has a very high market demand. At the same time, users are not familiar with some features. Here we will introduce some questions about the Cisco Router password restoration for your reference.
How Cisco Router password is restored
1) The Cisco router stores several different configuration parameters a
It is very important to know some questions about Cisco router configuration. So I have studied the detailed introduction of Cisco router configuration statements, and I will share them with you here, hoping to help you. Cisco routers once dominated enterprise wide area network applications. However, according to the CCID report in recent years, huawei and
Different vro models and different cracking methods:The general method is the same:Enter monitoring mode: 1. Press ctrl + break 2 within 60 seconds, the register value starts with 0x0, and directly enters monitoring modeModify the register value to 0x2142. Load IOS directly without loading the configuration file.Summary steps:1. Restart ctrl + break2. confreg 0x2142 modify the register value to 0x2142Reset restart3. copy startup-config running-config to copy the startup information to the runnin
The Cisco simulator runs in a Windows environment and consumes resources. Therefore, Dynamips is installed on the CentOS6 Linux operating system to simulate Cisco routing and switching.1. Download:Download several required packages[Root @ cisco test] # wget http://www.ipflow.utc.fr/dynamips/dynamips-0.2.8-RC2-x86.bin[Root @ c
: IP access-list Extended xxx permit protocol source destination reflect name [time-out seconds] IP access-list Extended yyy Evaluate name (this keyword creates an open table entry that temporarily internally leads to an external return flow, the two red places must be the same, meaning I don't want to repeat it) is finally enabled on the interface, which is similar to the application rules for the normal list. 3lian.com below to illustrate with the example: First look at the confi
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
Everyone is very interested in new knowledge. Many may not be familiar with Cisco router IOS. This article is a brief introduction to Cisco router IOS, hoping to give you a basic understanding of IOS software. After decades of development, from the first four-node ARPANET to the ubiquitous Internet, computer networks have penetrated into our lives.
With the explosive growth of the computer network scale, as
The Cisco switch launched by Cisco is also a giant in the entire industry. The Cisco switch performs well in the market. The Cisco switch will think that the wrong command is the host name, and try to resolve it by querying the DNS server.
In the process of debugging and maintaining
Release date:Updated on:
Affected Systems:Cisco ASR 9006Cisco ASR 9006Description:--------------------------------------------------------------------------------Bugtraq id: 48811Cve id: CVE-2011-2549
Cisco ASR 9000 series is an integrated service router solution that uses the Cisco ios xr Software module operating system to provide carrier-level reliability.
Cisco
; (CatOS) display VTP domain and VTP Mode
Show vtp status; (IOS)
Show interface; (CatOS) display Management interface Information
Show port; (CatOS) displays brief information about each port (number, VLAN, duplex ,...)
Show interface; (IOS)
Show trunk; (CatOS) displays the relay information (mode, encapsulation, allowed port, cropping ,...)
Show interface trunk; (IOS)
Show spantree 45; (CatOS) shows the STP mode, type, status, speed port,...) of the port ,...)
Show spanning-tree 45; (IOS)
3. In
Cisco routers are the leader in the routing industry. Their product quality is still very good. Cisco Wireless AP is also one of Cisco's most important products. Requirement Overview: A Cisco Wireless AP is used to build an enterprise wireless LAN. A user's notebook can log on to the wireless network without adding an AD domain. the user name and password of the
I would like to introduce you to the Cisco Wireless Router setting method. Many people may not know how to optimize the Cisco wireless router settings. 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.
I. Basic Cisco wireless router settings:
First, I collected the original text
Many friends who use the Cisco router module have encountered many problems during use. Below are some basic solutions. More or less can solve some small problems. Problem description: The Cisco router module does not turn on the light, and does not turn on the light after it is turned on.
Answer: If the module is broken, I have encountered this situation. Check if you recognize this
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