Comment 4 for bug 1655440

Please avoid disabling IPv6 using "ipv6.disable=1". This breaks socket() AF_INET6, which can cripple other software depending on the ability to open sockets() of the AF_INET6 family, even if the system should not use IPv6. It is usually safer to use "ipv6.disable_ipv6=1" instead, which will avoid setting addresses to the interfaces but still not break AF_INET6.

We can look into toggling receiving RAs as IPv6-specific settings.