Subj : IPv6's
To   : Jeff Smith
From : Michiel van der Vlist
Date : Wed May 08 2019 10:35:21

Hello Jeff,

On Tuesday May 07 2019 12:25, you wrote to All:

 JS> First, let me say that I am far from overly knowledgeable regarding
 JS> IPv6 operation and functionality.

 JS> But after talking, being on hold to several levels of my ISP's support
 JS> staff over the last two hours. I feel pretty dang smart. :-)

;-)

Unfortunately it stopped working again:

+ 10:14 [2640] call to 1:282/1031@fidonet
  10:14 [2640] trying f1031.n282.z1.binkp.net [2602:41:670c:a600:d1d2:c23d:4b1c:940c]...
? 10:15 [2640] connection to 1:282/1031@fidonet failed: {W32
               API error 10065} A socket operation was attempted to an unreachable host
  10:15 [2640] trying f1031.n282.z1.binkp.net [65.103.12.161]:24554...
+ 10:15 [2640] bind -- getaddrinfo: Der angegebene Host ist unbekannt.  (11001)
  10:15 [2640] connected
+ 10:15 [2640] outgoing session with f1031.n282.z1.binkp.net:24554 [65.103.12.161]

 JS> I had to explain my IP situation several different ways before I could
 JS> get them to comprehend what I actually needed. My situation is really
 JS> quite simple to me. I have a block of static v4 IP's I am told by my
 JS> ISP that each static v4 IP has a derived v6 IP assigned to it.

Hmmm...

There is a way to associate an IPv6 address with an IPv4 address, there is even a notation for it:

2001:1c02:1100:d200::192.168.178.11

But I have never seen this actually used by an ISP to issue IPv6.

 JS> I asked them what the v6 Prefix and the v6 Gateway address(s) were.
 JS> They had little if any knowledge what my v6 IP's were let alone what
 JS> the prefix or gateway would be.

Odd. An ISP should know what address (blocks) they issue...

 JS> Linux needs to know those settings before one can save the network
 JS> settings for that that Linux PC.

I am not familiair with Linux, but I would be surprised if it differs, in that contrary to Windows, it requires user intervention to ceate a working IPv6 setup.

Here I do not have to do anything to assign IPv6 addresses to my PC's. The router is assigned a /56 from the ISP. The router assigns a /64 to the local LAN en from that /64 IPv6 addresses are assigned to devices on the LAN. Either bij SLAAC or DHCP6.

It is only when running servers that I have to intervene. I have to punch a hole in the firewall for the ports concerned and I have to update the DNS..

 JS> I have written a bash script that goes out and gets my v6 IP and IF it
 JS> has changed it then updates the settings at my DNS provider for that
 JS> domain. Which shouldn't be needed IF the v6 IP was actually static
 JS> like they say that it is.

So obviously you do not have static IPv6 addresses. :(

Can you change ISPs in you area?


Cheers, Michiel

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