Problem with IPv6 DNS servers setup inside 5.0RC5

RouterOS General
1

If i enter an IPv6 server address inside Winbox (IP/DNS) as third server, then the server address disappear after reboot.

I notified as well that IPv6 DNS server advertisement was not working even before reboot. (sniffing ICMPv6 packets)

If i enter the IPv6 address in secondary DNS address, then DNS server address is advertised.

Can someone explain how does this work and why the IPv6 DNS server address disapear after reboot if set in third position ?


Where should we put IPv4 and IPv6 server adresses, if we have two servers for each protocol ?


Why is IPv6 DNS server address setup inside IP setup instead of IPv6 setup inside Winbox ?


For those not (yet) interested by IPv6, here is an interesting link :

http://www.ipv6now.com.au/v4exhaustion.php

And an interesting sentence from Wikipedia :

“The most prominent analysis of the exhaustion progress is published by Geoff Huston, Chief Scientist at APNIC. As of November 2010[update], his daily IPv4 Address Report predicts the exhaustion date of the unallocated IANA pool for March 2011”

Actualy this date has been adjusted to mid february 2011. This means that we are about one year only before to see first providers and clients without new IPv4 adresses (RIR exhaustion).

2

A little OT. I agree that IPv6 adoption is way behind. I just started running dual stack on most of my systems. But the exhaustion isnt as bad as you may think. All it means is there wont be new IPv4 direct allocations from RIPE/ARIN, etc. Comcast, ATT, other ISPs have massive pools that arent even close to being tapped out.

So even though the direct allocations will be gone in Feb, There are still plenty of IPs available.

Its a sure bet that IPv6 isnt going to become mainstream the day, year, or even 2-3 years after exhaustion.

But… On the other hand, its better to be prepared. A sudden change is going to make IT guys with experience an assload of money.

3

Its a sure bet that IPv6 isnt going to become mainstream the day, year, or even 2-3 years after exhaustion.

I’m not thinking like you.

As soon as first clients will get IPv6 only adresses, a fast change to IPv6 will be mandatory to keep IP connectivity.

At end of 2011 will see for sure first clients without new IPv4 adresses in some countries.

So we have about one year to fully learn, test and deploy IPv6 in the field.


This is not a lot of time when you see the actual rate of coding for IPv6 on router OS.