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Old 06-09-2016, 11:25 PM   #1
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Centos 7.2 check if ipv6 is enabled in the kernel

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.

Old 06-10-2016, 12:02 AM   #2
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This might be helpful to you
Old 06-11-2016, 09:39 PM   #3
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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.


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