On runnning ifconfig command I get the following as output. I need the IP address of eth1 for running my python server port with.eth0      Link encap:Ethernet  HWaddr 08:00:27:CE:08:3D          inet addr:10.0.2.15  Bcast:10.0.2.255  Mask:255.255.255.0          inet6 addr: fe80::a00:27ff:fece:83d/64 Scope:Link          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:2474 errors:0 dropped:0 overruns:0 frame:0          TX packets:1511 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000          RX bytes:204674 (199.8 KiB)  TX bytes:158605 (154.8 KiB)eth1      Link encap:Ethernet  HWaddr 08:00:27:18:CF:85          inet6 addr: **fe80::a00:27ff:fe18:cf85/64** Scope:Link          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1          RX packets:20998 errors:0 dropped:0 overruns:0 frame:0          TX packets:42 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:1000          RX bytes:1648690 (1.5 MiB)  TX bytes:10524 (10.2 KiB)lo        Link encap:Local Loopback          inet addr:127.0.0.1  Mask:255.0.0.0          inet6 addr: ::1/128 Scope:Host          UP LOOPBACK RUNNING  MTU:65536  Metric:1          RX packets:0 errors:0 dropped:0 overruns:0 frame:0          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:0          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)venet0    Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00          inet6 addr: fe80::1/128 Scope:Link          UP BROADCAST POINTOPOINT RUNNING NOARP  MTU:1500  Metric:1          RX packets:5 errors:0 dropped:0 overruns:0 frame:0          TX packets:5 errors:0 dropped:0 overruns:0 carrier:0          collisions:0 txqueuelen:0          RX bytes:340 (340.0 b)  TX bytes:515 (515.0 b)inet6 addr: fe80::a00:27ff:fe18:cf85/64 for eth1 is not in standard IP addres format. What do I do to get the IP address of eth1edit 1: Result of the ip command:[root@localhost config]# ip a l dev eth1eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000    link/ether 08:00:27:18:cf:85 brd ff:ff:ff:ff:ff:ff    inet6 fe80::a00:27ff:fe18:cf85/64 scope link        valid_lft forever preferred_lft forever
Not able to resolve IP address for eth1 in Vagrant VM
ip;ipv6;ifconfig
fe80::/64 is a ipv6 address reserved to Link-local. ip a l dev eth1 should be enough to show your ip address on this specific interface(if assigned or acquired through a dhcp-server).Worth reading:Why is fe80::/10 reserved for link local addresses when fe80::/64 is actually used?Where is the statement of deprecation of ifconfig (on linux)? - best answerIPv6 address