Centos 7.2 check if ipv6 is enabled in the kernel

pgb205 · 06-09-2016, 11:25 PM

every web posting that I could find suggests something along the lines of 'lsmod| grep ipv6'
however on centos it seems that this may be compiled into the kernel and not as module. There is no kernel config file under /proc for me to check as there would be under Gentoo for example. I see inet line under lo interface but how else can I make sure that my installation has ipv6 enabled.

thanks.

ferrari · 06-10-2016, 12:02 AM

This might be helpful to you
http://www.betweendots.com/topic/3-e...redhat-server/

jayjwa · 06-11-2016, 09:39 PM

Look in /proc/net/ for stuff like "tcp6", "ipv6_route", "udp6", or other similar stuff to see if the kernel is ipv6-able (if that's even a word...). You should also see mention of 'inet6' using 'ifconfig' or 'ip -6 addr show' from the command line.