Closed
Description
- Version: 8.1.0
- Platform: linux
- Subsystem: os
os.networkInterfaces() returns wrong MAC addresses.
Running the following code
console.log('interfaces ####################\n',
require('os').networkInterfaces())
console.log('ip a ####################\n',
require('child_process').execSync('ip a').toString().trim())I get the following output
interfaces ####################
{ lo:
[ { address: '127.0.0.1',
netmask: '255.0.0.0',
family: 'IPv4',
mac: '00:00:00:00:00:00',
internal: true },
{ address: '::1',
netmask: 'ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff',
family: 'IPv6',
mac: '00:00:00:00:00:00',
scopeid: 0,
internal: true } ],
enp3s0f1:
[ { address: '192.168.1.116',
netmask: '255.255.255.0',
family: 'IPv4',
mac: '00:00:00:00:41:00',
internal: false },
{ address: 'fe80::4100:1991:751a:d1aa',
netmask: 'ffff:ffff:ffff:ffff::',
family: 'IPv6',
mac: '00:00:00:00:41:00',
scopeid: 2,
internal: false } ] }
ip a ####################
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
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: enp3s0f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 70:4d:7b:3c:16:b0 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.116/24 brd 192.168.1.255 scope global dynamic enp3s0f1
valid_lft 1076sec preferred_lft 1076sec
inet6 fe80::4100:1991:751a:d1aa/64 scope link
valid_lft forever preferred_lft forever
165: wlp2s0mon: <BROADCAST,ALLMULTI,PROMISC,NOTRAILERS,UP,LOWER_UP> mtu 1500 qdisc mq state UNKNOWN group default qlen 1000
link/ieee802.11/radiotap d0:57:7b:0e:93:31 brd ff:ff:ff:ff:ff:ff
This a small tabble with some experiments I did playing with node versions and platforms
| Version | OS | Platform | Output |
|---|---|---|---|
| 8.1.0 | linux | PC | wrong |
| 7.10.0 | linux | RaspberryPi 3 | wrong |
| 4.8.3 | linux | PC | correct |
| 4.4.3 | linux | RaspberryPi 3 | correct |
I'm no expert of nodejs core, but my feeleing is that maybe libuv returns a wrong MAC address... Is it maybe related to libuv/libuv#829 ?
Thanks for your help, and all the hard work you're doing!
Kind regards,
M.