Simple Linux Network interface configuration mapper
source link: https://dev.to/vkg23/linux-network-interface-configuration-mapper-41
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Simple Linux Network interface configuration mapper
Sep 4
・1 min read
There are many questions to answer when it comes to a physical machine-related Network interface configuration that has multiple interfaces for individual use.
. Which card is active?
. Is that part of bonding?
. What is its mac address?
. What is its permanent mac if part of Bonding?
. What's the speed of device and what is its state now?
. What all ip address its holding now ?
While ifconfig provides you some info , new 'ip' command does it much more better yet don't have all the representations. Then you end up looking at some other config files/device files to further map information.
Give this a try, Just copy and run.
To keep it simple and portable as possible for admins I did it in my fav awk programming.
Sample output
#awk -f Netinfo.awk
Filter IPV4(-4) : No
______________________________________________________________________________________________________________
Device Name Bond Mac Mac(perm) State IP/Net
______________________________________________________________________________________________________________
/ lo UNKNOWN() 127.0.0.1/8
02:01 eno1 bond0 92:6a:64:43:d5:c1 92:6a:64:43:d5:c1 UP(10G)
02:02 eno2 bond0 92:6a:64:43:d5:c1 92:6a:64:43:d5:c5 UP(10G)
02:03 eno3 92:6a:64:12:d3:12 DOWN(10G) 192.168.0.11/24,fdb4:a9d0:15e6:a052::/64
bond0 92:6a:64:12:d3:13 192.168.0.12/24,192.168.0.20/24
_____________________________________________________________________________________________________________
Refer to my Github page for more details.
Link Github/vkg23/Netinfo.awk
Tested for RHEL/CENTOS 6/7/8 Versions.
Hope it helps the Linux Community.
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