1. add the below option in the file “/etc/default/grub and add ipv6.disable=1”   # cat /etc/default/grub GRUB_TIMEOUT=5 GRUB_DEFAULT=saved GRUB_DISABLE_SUBMENU=true GRUB_TERMINAL_OUTPUT=”console” GRUB_CMDLINE_LINUX=”ipv6.disable=1 crashkernel=auto rhgb quiet” GRUB_DISABLE_RECOVERY=”true” ** add the option highlighted in bold.   2. After modifying the file, run the below…