= Сообщение: 3423 из 7440 ============================================= IPV6 = От : Michiel van der Vlist 2:280/5555 18 Aug 16 00:45:40 Кому : Tony Langdon 18 Aug 16 00:45:40 Тема : livewirebbs and IPv6 FGHI : area://IPV6?msgid=2:280/5555+57b4ed60 На : area://IPV6?msgid=1877.fido-ipv6@3:633/410+1c1a228f = Кодировка сообщения определена как: CP850 ================================== ============================================================================== Hello Tony,
On Thursday August 18 2016 08:13, you wrote to me:
MvV>> Having two different host names for IPv4 and IPv6 is MvV>> undesirable. Just add both the A an the AAAA record to MvV>> fido.livewirebbs.com and callers will sort out automatically if MvV>> they should use IPv4 or IPv6.
TL> I agree that the primary hostname should have both A and AAAA records.
Yes, that would be the normal situation wouldn't it? I did not want to confuse Allen with the exceptions. Yet...
TL> There are reasons to have extra IPv4 and possibly IPv6 only records. TL> The most common being where some of your services only run on IPv4,
Or only on IPv6...
TL> having an A record (e.g. ipv4.yourdomain.com) can prevent delays for TL> IPv6 capable hosts that attempt to connect. But the main hostname TL> should have A and AAAA records.
TL> I'm using separate hostnames for binkp and telnet for this reaason. TL> When I get around to upgrading the BBS and it can use IPv6, I won't TL> need to do this.
Yes, if not alle services support both IPv4 and IPv6 a seperate host name is a good idea.
TL> Similarly, one of my feeds is IPv6 capable. However, TL> my feed was on a secondary mailer, which didn't support IPv6 at the TL> time. This caused long delays on my end,
Yes, that can happen when software is led to believe IPv6 is available when it is not.
TL> until he added an IPv4 only hostname, which I switched to. The TL> software has since been upgraded on his end, and I've gone back to TL> polling the main IPv4/IPv6 hostname, now that his end answers on IPv6.
I am aware of it. In fact Kees van Eeten and me in our joint hunt for Fidonet potential IPv6 nodes often see this. He has a script that hunts for AAAA records in the nodelist that have not been tagged as IPv6 capable yet.
I then poll the node and sometimes I get an IPv6 connect. But more often this is what happens: