Apr 29, 2020 · Install ifconfig on Ubuntu 20.04 (Focal Fossa) To ensure the ifconfig command is available on your Ubuntu 20.04 (Focal Fossa) machine. Run the command: sudo apt install net-tools. The net-tools package will install ifconfig on Ubuntu 20.04 (Focal Fossa). After installation, you can try invoke ifconfig in the terminal. Ifconfig output - help understanding flags 'Smart, Simplex', etc Hi - Trying to understand a few things from an ifconfig -a output - can't seem to find info anywhere on the net. Specifically - looking to understand the following: Flags=8863 Smart Running (is this the same as UP) Simplex inet6 supported media: autoselect - does that imply the The venerable ifconfig is available on almost every unix I have encountered. In addition to reporting the IP addressing and usage statistics of an optionally specified interface, ifconfig can modify an interface's MTU and other flags and interface characteristics, bring up an interface and bring down an interface. Last login: Wed Apr 29 21:22:21 on ttys000 gim-yeongdeog-ui-MacBook-Air:~ KimYoungDirk$ ifconfig lo0: flags=8049 mtu 16384 options=3 inet6 ::1 prefixlen 128 inet 127.0.0.1 netmask 0xff000000 inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1 nd6 options=1 gif0: flags=8010

Feb 28, 2016 · One of many useful commands to master as an administrator of Linux systems is the ifconfig command. flags=73 mtu 65536 inet 127.0.0.1 netmask 255.0.0.0

The flag values printed by ifconfig roughly correspond to the names of its command-line options; they will be explained later. The following is a list of parameters recognized by ifconfig with the corresponding flag names. Options that simply turn on a feature also allow it to be turned off again by preceding the option name by a dash (-).

The flags. Following is the list of flags and their significance in the routing table : U : This flag signifies that the route is up; G : This flag signifies that the route is to a gateway. If this flag is not present then we can say that the route is to a directly connected destination

May 20, 2020 · ifconfig stands for “interface configuration”.It allows us to view and configure network interface settings. $ ifconfig ens33: flags=4163 mtu 1500 inet 192.168.91.129 netmask 255.255.255.0 broadcast 192.168.91.255 ether 00:0c:29:b6:7f:1a txqueuelen 1000 (Ethernet) RX packets 1823 bytes 916481 (916.4 KB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 950 Jul 17, 2019 · If a single interface argument is given, it displays the status of the given interface only; if a single -a flag is given, it displays the status of all interfaces, even those that are down. Otherwise, it configures an interface.” ifconfig Command Purpose. Configures or displays network interface parameters for a network using TCP/IP. Syntax. Description. The ifconfigcommand can be used from the command line either to assign an address to a network interface or Flags. Optionally, the -aflag may be used instead of an The flag values printed by ifconfig roughly correspond to the names of its command-line options; they will be explained later. The following is a list of parameters recognized by ifconfig with the corresponding flag names. Options that simply turn on a feature also allow it to be turned off again by preceding the option name by a dash (-). Ifconfig returns flags=4163 The if.h header says up=0x1, running=0x40, broadcast=0x2, multicast=0x1000 Trying to reconcile that with the flags=4163 Maybe there are other unreported flags, but I can't construct a list from if.h that adds to 4163 Any clues from a networking guru out there? Russell