Re: WIndows Updates Fail Via IPv6 - Update!

[Rich Kulawiec]

On Mon, Mar 04, 2019 at 08:04:12AM +1100, Mark Andrews wrote:
> ICMP is NOT optional.

I've pointed folks at this for years:

        ICMP Packet Filtering v1.2
        http://www.cymru.com/Documents/icmp-messages.html

---rsk