native vlan

Original web site http://blog.csdn.net/yygydjkthh/article/details/6750399 It is the specific forwarding process of the L2 Switch. The following describes the forwarding process in detail. First, let's take a look at what tpid means? Frames in the 802.1Q document of VLAN protocol are embodied in the following data packets: Here, the blue position is the 802.1Q header, and the specific meaning of each item is: Tag protocol identifier(TAG protocol ide

Configure a VLAN (on top of a bond) with NetworkManager (nmcli) in RHEL7, nmclibondNot on top of a bondEnvironment Red Hat Enterprise Linux 7 NetworkManager Issue Need an 802.1q VLAN in RHEL 7 when using NetworkManager. Resolution Remove any existing connection profiles for the interface which will have the VLAN (s). Assuming this interface iseth0:# for co

First, we need to understand the origin of VLAN and why such a technology is generated. This starts with the data exchange in the computer network. At the very beginning, our network was in the wild age. How did we exchange data, that is, simple media sharing, and everyone was connected to a line, then send data to each other, which will inevitably lead to a problem. There is only one way for everyone to compete, and there will inevitably be no confli

PC with Address: C1 192.168.10.10 192.168.10.1 C2 192.168.20.10 192.168.20.1 C3 192.168.10.20 192.168.10.1 C4 192.168.20.20 192.168.20.1 Requirement 1: SW1 (config) #no IP routing SW2 (config) #no IP routing SW1 (config) #vlan 10,20 SW2 (config) #

How to Use H3C Huawei switches: about port and VLAN technology, this article describes QoS, VLAN technology, and switch port speed limit, port configuration, etc, the author gives a comprehensive introduction to all the relevant knowledge about how to use H3C Huawei switches. H3C Huawei switch usage system information: this page is mainly used to display and configure some system parameters of the switch. T

VLANIt is a protocol proposed to solve Ethernet broadcast problems and security. It adds VLAN headers Based on Ethernet frames and divides users into smaller working groups using VLAN IDs, restrict mutual access between users in different working groups. Each working group is a virtual LAN. Let's implement the configuration through practice. I. Networking requirements: PC1 and PC2 connect to the vswitch por

Vlan switching technology Vlan is built on a LAN switch and implements division and Management of logical working groups in a software manner. Its Switching technology generally includes port switching, three types of frames exchange and Token exchange. 1. the port switch is also called the configuration switch. The initial method is to manually configure the port to one or more shared hubs connected throug

Tags: Lan Ethernet access Cisco vlanVlan ID rangeRangePurpose0, 4095RetainedUsed by the system1NormalCisco default vlan can be deleted2-1001NormalYou can create and delete1002-1005NormalCisco default vlan used for FDDI and ring cannot be deleted1006-1024RetainedUsers cannot view and use1025-4096ExtensionFor Ethernet onlyHow to create a VLAN1) configure in privileged modeSwitch #

) #access-list10 permit 192.168.2.0 0.0.0.255Router (config) #access-list10 permit 192.168.3.0 0.0.0.255Configuration NAT Address TranslationRouter (config) #ip natinside Source list Interface S1/1 overload3 , configuring layer three switches Create a vlan5 To configure the address to connect to the route, and f0/1 into the vlan5 Switch (config) #vlan 5Switch (config) #interf0/1Switch (config-if) #switSwitch (config-if) #switchportmoSwitch (config-if

It mainly analyzes the packet format of VLAN. At the same time, the application of vconfig command is explained. pc:10.10.107.168 ap:10.10.107.231 (eth0.100) 1: Add VLAN, use Vconfig. ~# Vconfig BusyBoxv1.10.3 (2012-09-23 02:13:20 CST) multi-call binary Usage:vconfig COMMAND [OPTIONS] ... Create Andremove Virtual Ethernet Devices Options: add [Interface-name] [vlan_id] REM [

It mainly analyzes the packet format of VLAN. At the same time, the application of vconfig command is explained. pc:10.10.107.168 ap:10.10.107.231 (eth0.100) 1: Add VLAN, use Vconfig. ~# Vconfig BusyBoxv1.10.3 (2012-09-23 02:13:20 CST) multi-call binary Usage:vconfig COMMAND [OPTIONS] ... Create Andremove Virtual Ethernet Devices Options: add [Interface-name] [vlan_id] REM [

Experimental requirements VLAN 10 Network Segment 192.168.10.0 PC0 192.168.10.2 VLAN 20 Network Segment 192.168.20.0 PC1 192.168.20.2 Experiment 1 using routers to achieve one-arm routing Topology s switch Configuration Switch (config) #vlan 10 Switch (Config-vlan) #int F0/1 Switch (config-if) #switchport m

I am eager for the first time to switch between vlan routing and nat addresses of Cisco switches. I am very energetic and have an undefeated spirit. I am ready to continue to answer questions during multiple rounds of interviews. My little brother squashed his eyes and took out the bottom of the press box: If my company has two Internet interfaces, A and B, respectively. The following vswitch divides multiple VLANs. One of the VLANs goes through the-l

frame, view the source address (host a) and add it to the MAC address table. However, the switch does not know which port the Host B is on (MAC Address table does not have the MAC address of Host B), so this frame is an unknown unicast frame. The swap opportunity floods this frame.1.3 Group Network Diagram1.4 Stream Table AnalysisIn promiscuous mode, the policy Bridge flow table is similar to the "... actions=normal", which does not differentiate the traffic and can be forwarded as normal.When

-subif) #noshutR1 (config-subif) #exitR1 (config) to establish a DHCP address pool #ipdhcp Pool V10R1 (Dhcp-config) #network192.168.10.0/24R1 (dhcp-config) #default-router192.168.10.1R1 (dhcp-config) #dns-server1.1.1.1R1 (Dhcp-config) #exitR1 (config) to establish a DHCP address pool #ipdhcp Pool V20R1 (Dhcp-config) #network192.168.20.0/24R1 (dhcp-config) #default-router192.168.20.1R1 (dhcp-config) #dns-server2.2.2.2R1 (Dhcp-config) #exitR1 (config) to establish a DHCP address pool #ipdhcp po

In this section we look at how to implement and configure the following VLAN networks in an experimental environment Configure VLANs Edit/etc/network/interfaces, configure eth0.10, Brvlan10, eth0.20, and Brvlan20.The following shows the modification of/etc/network/interfaces with Vmdiff.Restart host, ifconfig each network interfaceUse Brctl Show to view the configuration of the current Linux Bridge. Eth0.10 and eth0.20 were hung on brvlan10 and Brvlan

Previously introduced the RADIUS wireless authentication scheme based on Windows2012 NPS, article: http://blog.51cto.com/hubuxcg/1636719?cid=702921#702921 today, based on the Windows NPS RADIUS Configuration Dynamic vlan!For the initial configuration section of NPS, refer to the previous article, which is only described in connection with VLAN configuration.1. In the NPS policy, add the connection policy, s

0x00 Preface With the development of network technology, network lines become more and more complex. Penetration testers reach the border server through injection, upload, and other basic or advanced script penetration methods on the web. Further in-depth access will face more complex networks, such as messy vlan environments. What is vlan: http://baike.baidu.com/history/id=9328829 Test Topology 0x01 test

Type" field eight bytes to the right from its original location in Ethernet II. · Payload-same as 802.3LLC frame. The valid data length range of 802.3SNAP is 38 ~ 1492 bytes. · FCS-same as 802.3LLC frame. The value must be recalculated. IEEE 802.1Q encapsulation: The header of 802.1Q is not actually enclosed in the original frame, but in the Ethernet II frame, add a 32-bit field between the MAC source address field and the "Ethernet Type" field in the original frame ). The fields in the I

Cisco's DHCP and VLAN comprehensive experiment content details, ciscovlan Cisco DHCP and VLAN comprehensive experiment Lab content: The IP addresses of PC1 and PC2 must be obtained through the DHCP Server. R1 performs single-arm routing and DHCP Relay. The IP address of f2/0 on the R2 interface is 192.168.3.1. PC1 belongs to vlan10, PC2 belongs to vlan20, and R3 (DHCP Server) belongs to VLAN30. PC1 belongs