Check IPv6 support on Linux

FACT #1Number of IP addresses available theoretically.

IPv4 – 4,294,967,296

IPv6 – 340,282,366,920,938,463,463,374,607,431,768,211,456

CHECK #1Checking IPv6 support on your LINUX machine.

cat   /proc/net/if_inet6

this command must shows two up interfaces with IPv6 addresses.

lsmod | grep   -w    'ipv6'

this will show if IPv6 kernel module is loaded.

CHECK #2Ping localhost on IPv6 interface.

ping6 -c4 ::1

God Bless.