Surprisingly many network interfaces on macOS: are these legitimate?
-
31-05-2021 - |
Domanda
ifconfig
reveals a surprisingly long list of network interfaces on my MacBook, which is running macOS High Sierra (10.13.6): lo0
, gif0
, stf0
, XHC20
, en0
, p2p0
, awdl0
, en1
, en2
, bridge0
, utun0
.
There is an F5 VPN client installed, but I've rebooted the MacBook since the last VPN connection.
Are all of these network interfaces legitimate or is this something I should worry about?
Soluzione
These are perfectly normal.
lo
is the loopback interfaceen0
anden1
are your hardware interfaces (usually Ethernet and WiFi)p2p0
is a point to point link (usually VPN)stf0
is a "six to four" interface (IPv6 to IPv4)gif01
is a software interfacebridge0
is a software bridge between other interfacesutun0
is used for "Back to My Mac"XHC20
is a USB network interfaceawdl0
is Apple Wireless Direct Link (Bluetooth) to iOS devices
In my personal setup I have 2 addtional en
interfaces (en2
and en3
), as well as two software interfaces specific to VirtualBox, vboxnet0
and vboxnet1
. Other virtualization applications like VMware, Parallels, and Docker will create their own interfaces as will VPN clients.
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