Arch Linux

luken

Member

Registered: 2014-06-26

Posts: 37

Any idea why my computer have TWO IP addresses in my home network?

Just realized that, the output of "ip addr" is about this (yeah, anonymized):

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
    inet x.x.x.51/24 brd x.x.x.255 scope global enp1s0
       valid_lft forever preferred_lft forever
    inet x.x.x.8/24 brd x.x.x.255 scope global secondary enp1s0
       valid_lft forever preferred_lft forever
    inet6 x/64 scope link 
       valid_lft forever preferred_lft forever

As you can see, I seems to have two IP addresses in my network, and in fact I have - just tried to access my http server from my smartphone and it works for both IPs. I don't remember that EVER happened before I was running Arch. Any idea why is that?

karol

Archivist

Registered: 2009-05-06

Posts: 25,440

Re: Any idea why my computer have TWO IP addresses in my home network?

I think it's called an alias.
http://superuser.com/questions/564528/r … d-in-linux