Virtual COM port or serial port is ideal when a legacy SW application expects a connection to a COM port but cannot connect, due to a lack of available ports. Computer Configuration Policies Administrative templates Windows Components Remotes Desktop Services Remote desktop Session Host Security Always prompt. VLAN is an acronym for Virtual Local Area Network. Several VLANs can coexist on a single physical switch, which are configured via Linux software and not through. Configure Linux Virtual Local Area Network VLAN nix. Craft. VLAN is an acronym for Virtual Local Area Network. Several VLANs can co exist on a single physical switch, which are configured via Linux software and not through hardware interface you still need to configure actual hardware switch too. Hubs or switch connects all nodes in a LAN and node can communicate without a router. For example, all nodes in LAN A can communicate with each other without the need for a router. If a node from LAN A wants to communicate with LAN B node, you need to use a router. Therefore, each LAN A, B, C and so on are separated using a router. Serial_Port_in_Linux_Virtual_Machine.png' alt='Virtual Com Port Driver Linux' title='Virtual Com Port Driver Linux' />Getting Started with VMware Workstation Introduction and System Requirements Host System Requirements Processor Requirements for Host Systems. Our Virtual Serial Port Driver and Virtual COM port for Windows allow you to access your device server serial port as if it was a real COM port of your PC. Virtual Com Port Driver Linux' title='Virtual Com Port Driver Linux' />VLAN as a name suggest combine multiple LANs at once. But, what are the advantages of VLAN Performance. Ease of management. Security. Trunks. VLANs give you the ability to sub divide a LAN for security purpose. You dont have to configure any hardware device, when physically moving server computer to another location and more. Fundamental discussion about VLAN or switches is beyond the scope of this blog post. I suggest the following textbooks A note about your LAN hardware. To be able to use VLANs you will need a switch that support the IEEE 8. Ethernet network. You will also need a NIC Network Interface Card that works with Linux and support 8. Linux VLAN configuration issues. I am lucky enough to get a couple of hints from our internal wiki Not all network drivers support VLAN. You may need to patch your driver. MTU may be another problem. Introduction The scsidebug adapter driver simulates a variable number of SCSI disks, each sharing a common amount of RAM allocated by the driver to act as. My question is similar to Setting up a virtual Com Port, which has no answers. I have software that can only print to a printer on COMx, a printer with a USB port. VLAN works by tagging each frame i. Ethernet header extension that enlarges the header from 1. The VLAN tag contains the VLAN ID and priority. Do not use VLAN ID 1 as it may be used for admin purpose. Enough talk, lets get to the Linux VLAN configurations. Setting up 8. 02. VLAN tagging by loading 8. Linux kernel driver. First, make sure that the Linux kernel driver module called 8. If the module is not loaded, load it with the following modprobe command modprobe 8. Method 1 Cent. OSRHLEFedora Linux VLAN How. How To Program Alpine Car Alarm Remote on this page. To. I am using RHELCent. OS Linux with VLAN ID 5. So I need to copy file etcsysconfignetwork scriptsifcfg eth. Now, Ive one network card eth. VLAN ID 5. eth. 0 Your regular network interfaceeth. Your virtual interface that use untagged frames. Do not modify etcsysconfignetwork scriptsifcfg eth. Now open file etcsysconfignetwork scriptsifcfg eth. Find DEVICEeth. 0 line and replace with DEVICEeth. Also, append the following line VLANyes. Make sure you assign correct IP address using DHCP or static IP. Remove gateway entry from all other network config files. Only add gateway to etcsysconfignetwork file. This whole configuration may sound complicated. So I am including sample configurations files for you etcsysconfignetwork scriptsifcfg eth. VLAN configuration for my eth. ID 5. DEVICEeth. BOOTPROTOnone. ONBOOTyes. IPADDR1. NETMASK2. 55. 2. USERCTLno. NETWORK1. VLANyes VLAN configuration for my eth. ID 5. IPADDR1. NETMASK2. NETWORK1. 92. 1. VLANyesetcsysconfignetwork scriptsifcfg eth. Actual configuration for my eth. DEVICEeth. 0TYPEEthernet. BOOTPROTOnone. ONBOOTyes Actual configuration for my eth. ONBOOTyes. Finally, restart networking service on a Cent. OSRHELFedora Linux, type etcinit. OR service network restart. NOTE If you need a second VLAN i. VLAN ID 2 then copy the etcsysconfignetwork scriptsifcfg eth. Method 2 Using the vconfig command. Above method is perfect and works with a Red hat Enterprise Linux Cent. OS Fedora Linux without any problem. However, you will notice that there is a command called vconfig. The vconfig program allows you to create and remove vlan devices on a vlan enabled kernel. Vlan devices are virtual Ethernet devices which represents the virtual lans on the physical lan. This is yet another method of configuring VLAN. To add VLAN ID 5 with following command for eth. The vconfig add command creates a vlan device on eth. You can use normal ifconfig command to see device information ifconfig eth. Use ifconfig command to assign IP address to vlan interfere ifconfig eth. To get detailed information about VLAN interface, type cat procnetvlaneth. If you wish to delete VLAN interface use delete command as follows ifconfig eth. See vconfig8 for more information on syntax and examples. Method 3 Create the VLAN device using the ip command. Use the ip command as follows for the interface eth. You need to activate and add an IP address to vlan link, type ip addr add 1. All traffic will go through the eth. BLAN tag 5. Only VLAN aware devices can accept the traffic, otherwise the traffic is dropped. How can I remove VLAN ID 5 Type the following commands ip link set dev eth. How do I make above VLAN configuration permanent on a Debian or Ubuntu based system Edit the etcnetworkinterfaces file, enter sudo vi etcnetworkinterfaces. Update configuration as follows vlan for eth. ID 5 on a DebianUbuntu Linux. ID 5 on a DebianUbuntu Linux. Save and close the file. See also. Man pages ip8,vconfig8,ifconfig8 Additional correction by John T and others Editing by VG log Posted by Vivek Gite. The author is the creator of nix. Craft and a seasoned sysadmin and a trainer for the Linux operating systemUnix shell scripting. He has worked with global clients and in various industries, including IT, education, defense and space research, and the nonprofit sector. Follow him on Twitter, Facebook, Google.