7 ms·
With IPv6, admins learn within a week or two that they have to allow ICMPv6, or their networks don't work. With IPv4 you could (sort of) get by without ICMP, w
by ghshephard 12y ago
With IPv6, admins learn within a week or two that they have to allow ICMPv6, or their networks don't work. With IPv4 you could (sort of) get by without ICMP, with IPv6 it's mandatory.