No networkconnection with IPv6

Hi all,
I just configured our domaincontroller with an IPv6 address.
After that I enabled the IPv6 DHCP scope and configured the server to distribute IPv6 addresses.
It seems to work because all clients receive an IPv6 address but when I disable the IPv4 I lose connection with the network.
I configured our firewall with IPv6 as well, allowed IPv6 etc. ...
I also set a static IPv6 for our DC and fileserver but no result.
What I see is when I try to ping our DC from a IPv6 enabled client (with a failing network connection) I get a reply from the DC's IPv6 link-local address???
Pinging google outputs that it can not find the host.
Can anybody explain me what i'm doing wrong?
Kindest regards,
Stijn

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Hi Daljitsinghtagore,
UPDATE:: I found this video from Cisco TAC, this will walk you through configguring IPv6 HSRP. I hope this helps
https://supportforums.cisco.com/videos/2829
I have never configured IPv6 HSRP, so you will have to bear with me.
But something I do notice off the bat is that you are using the '2001::/64' address space.
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As soon as you run the command ipv6 enable under an interface
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If you then do a 'sh ipv6 interface brief'
you should get an address starting fe80: this is your routers link loal address.
See below snippet from Cisco
"The purpose of this document is to provide an understanding of IPv6 Link-local address in a network. A link-local address is an IPv6 unicast address that can be automatically configured on any interface using the link-local prefix FE80::/10 (1111 1110 10) and the interface identifier in the modified EUI-64 format. Link-local addresses are not necessarily bound to the MAC address (configured in a EUI-64 format). Link-local addresses can also be manually configured in the FE80::/10 format using the ipv6 address link-local command.
These addresses refer only to a particular physical link and are used for addressing on a single link for purposes such as automatic address configuration and neighbor discovery protocol. Link-local addresses can be used to reach the neighboring nodes attached to the same link. The nodes do not need a globally unique address to communicate. Routers will not forward datagram using link-local addresses. IPv6 routers must not forward packets that have link-local source or destination addresses to other links. All IPv6 enabled interfaces have a link-local unicast address."
http://www.cisco.com/en/US/tech/tk872/technologies_configuration_example09186a0080ba1d07.shtml#intro
I will load up GNS3 later when I have some time to confirm.
Regards,
Liam
Message was edited by: Liam Kenneally

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IIS 7
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Hello!
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Hi,
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No One can say: Yes this works at my site?
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http://www.cisco.com/en/US/docs/routers/asr9000/software/asr9k_r4.3/interfaces/configuration/guide/hc43irb.html#wp1030916
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Thanks the issue i have it was discused on other two cases under the support community,
Thnaks to Mattew Ayre y
MAttew "The reason it doesn't work is because label switching on a VRF aware BVI is only supported in the per-vrf label allocation mode. There's a mention of this in the configuration guide shown here;
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HTH,
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on Aug 20, 2012 6:10 AM
Hi Pichet,
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http://www.cisco.com/en/US/docs/routers/asr9000/software/asr9k_r4.1/interfaces/configuration/guide/hc41irb.html#wp1030591
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Regards,

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Problem with ipv6 over pppoe

Dear Sir/Madam,
I am using ISP that assign me ipv6 by pppoe connection. I dont have any problem with windows and by creating pppoe connection everything works correctly but in os mavericks I don't get ipv6 automatically while I set configure IPv6 automatically in my network preferences.
It is very important for me because I want to switch IPv6 in my mac.
Best Regards,
Massoud

It works if I set manually but I think because there is no option for receive ip via ppp and the pppoe connection can not receive ipv6 automatically same as ipv4.

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I have setup IPv4 and IPv6 addresses for all my systems in OS X Server DNS and that works fine. However, when I add an IPv6 address for a system, the DNS server (or maybe the server GUI) insists on creating a reverse zone for the /127 version of the address. This means I pretty much have a separate reverse zone for every system, which seems crazy to me. it is especially annoying as I have another DNS server where all my zones are defined as slave zoes (for availability reasons) and thsi makes the process of addign a new IPv6 host somewhat tedious. I tried pre-creating a properly named reverse zone for the /64 prefix but the DNS server would not use that and still persists in creating these strange zones.
Here is a (fictitous example)...
My /64 prefix is 2001:fd0:f19:2ab::/64
I have a system with an address of 2001:fd0:f19:2ab:7e6d:62ff:fe8a:a84c
I add this to OS X Server DNS and it created the reverse DNS zone:
4.8.a.a.8.e.f.f.f.2.6.d.6.e.7.b.a.2.0.9.1.f.0.0.d.f.0.1.0.0.2.ip6.arpa
whereas I would expect it to instead add it to the zone
b.a.2.0.9.1.f.0.0.d.f.0.1.0.0.2.ip6.arpa
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Has anyone else noticed this? Or do you have it working as one might expect?

Chris..
I, too, have the same problem. I take issue with much of the OS X "Server" after it has been so completely dummed down that it is virtually useless for anyone that would actually like to utilize it as an actual, as the name implies, "SERVER." I won't get into all of the details of everything that drives me crazy with Apple's decisions here but, suffice it to say, I am EXTREMELY DISAPPOINTED with Apple more than ever. They should, at a minimum, offer a full-fledged server like they used to have, for an additional price, for people that need more than a nice looking interface and a worthless box.
That being said, the DNS server, like the rest of the OS X Mavericks Server, is dummed down to the point of allowing very little customization. Short of using the command line, which I have decided to do (I scrapped the OS X server all together, and just set up BIND, openLDAP, DHCP, Quagga, etc. from the CLI just like I do with all of my Linux servers), there is not much you can do to get the correct prefixes to show up in IPv6 reverse zones. The reason is that when you enter the forward record, the interface does not give an option to enter the prefix. So, it seems that for EACH AND EVERY v6 entry (AAAA record) you have (or at least every 10 entries), you will get a separate reverse zone.
To be completely honest, I don't even know why they included IPv6 zones in this implementation because it is totally out of compliance with the RFCs and, obviously, will not provide proper and correct reverse lookups. How could it? As you pointed out above, with a /64 prefix, you're getting a 31 digit long reverse zone (which, btw, is a /124)...***??? I've never heard of such a thing. There should be 16 digits in a /64, 12 in a /48, 8 in /32 and so on.
I don't think it is anything to do with your using a tunnel broker -- all of our systems are native IPv6 and all reverse queries to the Mac Server fail.
I can tell you how to use the CLI to manually enter the zones with the serveradmin tool, if you like, but my advice is to just move to a full fledged BIND implementation .... and, if you want some type of interface other than the console, use something like Webmin which has a GREAT DNS zone interface...and it also keeps up with the RFC compliance.
Just message me back if you'd like the shell commands. I hate to say this, it literally pains me, but I administer a ton of servers (physical and virtualized)... roughly 1000 +- to be exact...and WINDOWS Server has a DNS server that is so much further ahead and ADVANCED than Mac, it is disgusting. In fact, we are running 12 Win Server 2012R2 Active Directory Domain Servers, each running synchronized DNS records and even with over 250,000 DNS records, it works like a champ. Still, our primary and fail-safe DNS servers are all BIND v9. Like I said, it is awful to say that about Mac, but dude, they need to wake up and either get back to the real-deal systems or just get out of the advanced product arena all together. (one exception...my new MacPRO is AWESOME and the most advanced piece of computing equipment money can buy for the price...so kudos there)
Sorry about the rant, but when i read your post, I was reminded how frustrated I am at all of this nonsense.
Take care...and good luck.

No networkconnection with IPv6

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