If you specify the -s option for a specific interface, ifconfig queries the interface for its media status. If the interface supports reporting media status, and it reports that it doesn't appear to be connected to a network, ifconfig exits with status of 1 (false); otherwise, it exits with zero (true). Not all interface drivers support media

Aug 14, 2015 · You can even list only the running interface using: ip link ls up Modifying an Interface. Now we get into the heart of the command… using it to modify an interface. Suppose you wanted to assign a specific address to the first ethernet interface, eth0. With the ifconfig command, that would look like: ifconfig eth0 192.168.1.101 Ifconfig uses obsolete kernel interface. It uses the ioctl access method to get the full address information, which limits hardware addresses to 8 bytes. Since an Infiniband address is 20 bytes, only the first 8 bytes of Infiniband address are displayed. ifconfig command is used to configure a network interfaces in GNU/Linux systems. It displays the details of a network interface card like IP address, MAC Address, and the status of a network interface card etc. ifconfig is also commonly used to change the medium access control (MAC) address of an interface. In this process, the network interface is first disabled (set down) with the ifconfig command, followed by a MAC change command: ifconfig wlan0 down ifconfig wlan0 hw ether 13:11:20:33:49:66 ifconfig wlan0 up If you specify the -s option for a specific interface, ifconfig queries the interface for its media status. If the interface supports reporting media status, and it reports that it doesn't appear to be connected to a network, ifconfig exits with status of 1 (false); otherwise, it exits with zero (true). Not all interface drivers support media netsh interface ipv4 show subinterfaces netsh interface ipv4 set subinterface "1" MTU=576 stored=persistent (or something like that) I guess that's better than hacking the windows registry to change MTU size. But still a bit cryptic and relatively undocumented. I had to google from linux to get that gem. Because I couldn't get anything across To add a virtual IP address, add :n where n is a number after the name of the network interface.For example, ifconfig eth0:0 10.0.0.10 adds the address 10.0.0.10 as a virtual IP address to eth0. The number after the colon must be unique, you can add a second virtual IP address with ifconfig eth0:1 10.0.0.20, and so on.

May 14, 2011 · Here, we assume that you already have a NIC with a static IP configured in it. If we need to add two more IP addresses, say 192.168.1.25 and 192.168.1.26 to this interface, we can accomplish this by executing the following commands: ifconfig eth0:1 192.168.1.25 netmask 255.255.255.0 ifconfig eth0:2 192.168.1.26 netmask 255.255.255.0

To get all IP address related information using ip/ifconfig, these commands are used. $ ifconfig $ ip addr Take down/up network interface: If you would like to take down or bring up an interface, this is often done when modifying network configurations, you can use below commands. The interface eth0 can be replaced with any other interface name. Jul 11, 2019 · Unfortunately, it did not install ifconfig on Debian. Even tried removing and reinstalling net-tools. My OS: Linux debian2 4.19.0-5-amd64 #1 SMP Debian 4.19.37-5+deb10u2 (2019-08-08) x86_64 GNU/Linux

This is the output of ifconfig # ifconfig enp0s3 Link encap:Ethernet HWaddr 08:00:27:ef:b6:e6 inet addr:192.168.2.3 Bcast:192.168.2.255 Mask:255.255.255.0 inet6 addr: fe80:: Stack Exchange Network Stack Exchange network consists of 177 Q&A communities including Stack Overflow , the largest, most trusted online community for developers to learn May 14, 2011 · Here, we assume that you already have a NIC with a static IP configured in it. If we need to add two more IP addresses, say 192.168.1.25 and 192.168.1.26 to this interface, we can accomplish this by executing the following commands: ifconfig eth0:1 192.168.1.25 netmask 255.255.255.0 ifconfig eth0:2 192.168.1.26 netmask 255.255.255.0 Apr 07, 2020 · The ifconfig command is a very popular tool available on most Linux distros. The name “ifconfig” comes from “Interface Configuration”, it is used to check our system’s network interface and we can also use it to change some of the network interface settings.