Comments on: IPv6 day 6 June 2012: time to do it again

By: JamesK

JamesK — Fri, 15 Jun 2012 14:29:54 +0000

I had filed a report on bugzilla for 11.3 and the problem also occurs on 11.4. Also, if you read that report, you’ll see I’m not the only one who’s experienced it.

https://bugzilla.novell.com/show_bug.cgi?id=739215#c

By: genixinfo

genixinfo — Thu, 31 May 2012 21:51:20 +0000

This bug has already been registered on Forum: http://forums.opensuse.org/nederlands-dutch/helpen-en-hulp/netwerk-internet/475751-opensuse-linux-including-susefirewall2-not-has-full-support-ipv6-only.html#post2466514

By: Henk van Velden

Henk van Velden — Wed, 30 May 2012 16:26:24 +0000

It does not help to repeat things to me. I am a nitwit. Go to the Forums and/or Bugzila.

By: JamesK

JamesK — Wed, 30 May 2012 15:32:58 +0000

The IPv6 address I’m referring to is the link local, which every interface should have. It has nothing to do with the tunnel, which continues to work well. As I mentioned someone else had determined that it’s actually being turned off by the dhcp client. It should never be doing that.

By: Henk van Velden

Henk van Velden — Wed, 30 May 2012 07:47:22 +0000

As said I above, I am not an exprt, but it seems to me that it has something to to with your tunneling (I am not tunneling).

You could either strat a thread about this at forums.opensuse.org or, if you feel confodennt enough you have a case, report it at http://en.opensuse.org/Submitting_Bug_Reports.

By: JamesK

JamesK — Wed, 30 May 2012 02:12:25 +0000

I have updated to 11.4 and the same thing. If I configure the NIC facing my ISP for static IP, I get an IPv6 address on it, but not if I enable DHCP. It makes no difference if DHCP is configured for IPv4 & IPv6 or IPv4 only.

By: JamesK

JamesK — Tue, 29 May 2012 12:41:07 +0000

The problem is when a NIC is configured for DHCP, IPv6 is disabled. There’s not even an link local address for it. I am currently using IPv6 via 6in4 tunnel, but if my ISP were to offer IPv6, I couldn’t use it on the NIC I use to connect to them. This is on openSUSE 11.3, which I use for my firewall. I am not the only one that has experienced this and there is a bugzilla report on this. I am planning on updating my firewall to 11.4 shortly, so I’ll have to see how it goes with it. Someone else noted that IPv6 is initially enabled, but then turned off during NIC configuration when DHCP is enabled. I have no idea who’s bright idea it was, but using DHCP for IPv4 should never, ever affect IPv6.

By: Henk van Velden

Henk van Velden — Tue, 29 May 2012 10:21:56 +0000

I may be a bit lost how it works, but I do not have any problems using IPv4 and IPv6 together on my openSUSE systems. Ik tried to post this above because it could help you to further identify the bug you are talking about and which I do not seem to have any problems with.

By: JamesK

JamesK — Mon, 28 May 2012 21:07:55 +0000

You don’t need DHCP to get an IPv6 address, though it is one of four methods. With IPv6, you can have a MAC based address, a random number based address and manually configured, as well as DHCP. The MAC based address has been the default for quite some time. However, since some people consider that a privacy risk, recent Linux versions, along with Windows, now also create a random number based address. You’d use the random number address when surfing the web etc., but if you have a server, you’d have the DNS point to the MAC based address. The random number address will change periodically and if you run ifconfig, you’ll likely see a few of them, with one current and the others deprecated. There is also the link local address, which is always MAC based and starts with FE80. With IPv6, multiple IP addresses are normal.

My ISP provides IPv4 addresses via DHCP. I don’t know if they even offer static addresses to consumers. So, until that bug gets fixed, I won’t be able to use their IPv6, when they get around to providing it.

By: Henk van Veldden

Henk van Veldden — Mon, 28 May 2012 18:23:14 +0000

On my NICs I have a fixed IPv4 addresses and apparently the DHCP server in my Internet router gives me IPv6 addresses. Running 11.2 and 11.4 The tests on the Internet give me a full 100% readiness.