IP-MAC bound switch settings 1. solution 1: bind a port-based MAC address to a Cisco 2950 switch as an example. log on to the switch, enter the management password to enter the configuration mode, and run the following command: switch # config terminal # enter the configurat
address and IP address binding technology. Here we will introduce the IP and Mac binding settings for Cisco switches.
The following three options are available in Cisco, and Scenario 1 and Scenario 2 implement the same functionality, that is, a specific host's MAC address (NIC hardware address) is bound on a specific switch port. Scenario 3 is to bind the MAC address (NIC hardware address) and IP address of a specific host at the same time on a spec
Take the Cisco 2950 vswitch as an example. log on to the vswitch and enter the management password to enter the configuration mode. Then, run the following command:
Switch # config Terminal
# Enter the Configuration Mode
Switch (config) # interface fastethernet 0/1
# Enter the specific port configuration mode
Switch (c
Today, the tutor told me about the company's network topology, related to the switch, the basic concept of routers and principles, I am not very clear, so on the internet to learn the information to learn a bit, and then feel that this article is good, so it reproduced, but I reproduced not the original text, and did not attach the original link.
Here I posted a link to my reprinted article: http://blog.csdn.net/herostarone/article/details/8256235
Two
Two-layer switching technology is a mature development, two-layer switch is a data link layer device, can identify the Mac in the packet
Address information, forwarding based on MAC addresses, and recording these MAC addresses with corresponding ports in one of their own.
Address table. The specific work flow is as follows:
(1) When the switch receives a packet from a port, it first reads the source MAC a
card EEPROM, and the MAC address of the network card is only certain. Therefore, in order to prevent the internal personnel to carry out illegal IP spoofing (such as embezzlement of the higher authority of the IP address to obtain information outside the jurisdiction), you can bind the IP address of the internal network with the MAC address, even if the user modifies the IP address, also because the MAC address does not match the theft of And because of the only certainty of the MAC address of
introduce the IP and MAC binding settings for Cisco switches.There are three solutions available in Cisco. solution 1 and solution 2 provide the same functionality, that is, bind the MAC address Nic hardware address of the specific host to the specific switch port). solution 3 is to bind the MAC address Nic hardware address of the specific host to the specific switch port at the same time) and IP address.1
1) layer-2 Exchange Technology
The layer-2 switching technology is relatively mature. The layer-2 switch is a data link layer device that can identify MAC locations in data packets.Address information, which is forwarded based on the MAC address, and the corresponding MAC addresses and ports are recorded in a local location.Address Table. The specific workflow is as follows:
1) when the switch receives a pa
Simply put: Layer-1 switchOnly physical layer protocols are supported (one phone-controlled switch can be called ???)L2 SwitchSupports physical layer and data link layer protocols, such as Ethernet switches.L3 SwitchSupports physical layer, data link layer, and network layer protocols, such as some switches with routing functions. In terms of the ISO/OSI hierarchy, switches can be divided into L2 switches and L3 switches. A layer-2
Slide switch effect css3 slide switch] Pure CSS3 code sliding switch effect-css3 sliding effect-css3 Slide left and right, css3-css3
Today, I saw a blog post on the css3 event and sorted out relevant materials on the rise. Click the button to slide the switch.
Today, I saw a blog post on the css3 event and sorted out r
Today, I saw a blog post about the CSS3 incident, and then I sorted out the relevant information on a whim. Click the button to achieve the sliding effect of the switch.Today, I saw a blog post about the CSS3 incident, and then I sorted out the relevant information on a whim. Click the button to achieve the sliding effect of the switch.Today, I saw a blog post about the CSS3 incident, and then I sorted out the relevant information on a whim. Click the button to achieve the sliding effect of the
An instance of VLAN configuration for Cisco L3 switches and L2 SwitchesCisco VLAN implementation is usually port-centric. The port connected to the node determines the VLAN in which it resides. There are two ways to allocate a port to a VLAN: Static and Dynamic. The process of creating a static VLAN is to forcibly allocate the port to a VLAN. That is, we first create a VLAN on The VTP (VLAN Trunking Protocol) server, and then assign each port to the corresponding VLAN. This is the most common me
Click the Label Switch and switch the DIV tab to switch the div
Copy codeThe Code is as follows:
How does Maxthon2 automatically switch the new tab to the new tab?
Khan ...... I'm not doing anything about it. If it's me, I will choose to load the proud game (including configuration data) and reload the proud game.Suppl
The naming rules for Cisco switches are more complex than the naming rules for routing,Look at these:ws-c2960-24tc-l, WS-C2950G-24-EI-DC, Ws-c2960-24tt-l, Ws-c3750g-24ts-e, Ws-c3750g-24t-s, We didn't find them on the switch, we just saw the Catalyst 2950 series and wrote it all: The Cisco Catalyst 2950 Series, which means the Cisco
Music switch and image switch/do not flex switch operation file admin/dontimg.asp
Option Explicit
Dim room,user,dd,ai,chatdata,sendid,dispstr,dispstr2
User=request.form ("User")
Dd=request.form ("DD")
Ai=request.form ("AI")
Chatdata=application ("Chatdata")
Sendid=finduser (user)
Select Case DD
Case "0"
If ai= "on" Then
Dispstr=right ("0" time,8) ", System, 0,"
JQuery implements image switching (automatic switch + manual switch) and jquery Automatic Switch
I have accumulated many interesting small examples when I learned JavaScript, but I have not found any good platforms to demonstrate these JS effects. Today, I found RunJS, a platform for sharing code. I can't wait to share it with you.
When browsing the websites of
I'm going to go down to the two and three layers of the switch.
A two-tier switch is equivalent to dividing an interface into multiple interfaces, just to provide a lot of interfaces; (if the landlord is not a professional person can ignore the following content) theoretically it can be understood that the switch does not split the broadcast domain, but split the
Music switch and image switch/do not flex switch operation file admin/dontimg.asp
Option Explicit
Dim room,user,dd,ai,chatdata,sendid,dispstr,dispstr2
User=request.form ("User")
Dd=request.form ("DD")
Ai=request.form ("AI")
Chatdata=application ("Chatdata")
Sendid=finduser (user)
Select Case DD
Case "0"
If ai= "on" Then
Dispstr=right ("0" time,8) ", System, 0,"
Today to share the mouse click button, the picture to switch + picture automatic switch + click on the left and right button picture to switch the combination of the three effects of the code.
The final effect is as follows:
HTML code section:
CSS Code section:
*{margin:0px;padding:0px} Li{list-style:none} A{text-decoration:none} img{b
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