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

May 06, 2020 · The ifconfig command still has a lot to offer its users. Whether its displaying network settings, configuring an IP address or netmask, creating aliases for interfaces, or setting MAC address, ifconfig can handle it. Let's take a look at how to use ifconfig to accomplish some more common tasks you may find yourself working on completing. 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 (-).

May 12, 2020 · [root@localhost ~]# ifconfig enp0s3 enp0s3: flags=4163 mtu 1500 inet 192.168.0.103 netmask 255.255.255.0 broadcast 192.168.0.255 ether 08:00:27:1d:8e:54 txqueuelen 1000 (Ethernet) RX packets 33568 bytes 12062979 (11.5 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 20124 bytes 4406857 (4.2 MiB) TX errors

% ifconfig em0: flags=8843 mtu 1500 options=b inet 10.10.10.100 netmask 0xffffff00 broadcast

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.

By default ifconfig will show me all available interfaces , but what if I just want to display active ones? Like, en0 only in below. en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAS % ifconfig em0: flags=8843 mtu 1500 options=b inet 10.10.10.100 netmask 0xffffff00 broadcast # ifconfig ip.6to4tun0 inet6 ip.6to4tun0: flags=2200041mtu 1480 index 11 inet tunnel src 129.146.86.187 tunnel hop limit 60 inet6 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