@andiroid In the init7 instructions, just pay attention to the setting on the IPv6 tab! In this case, the others are init7 specific and are not suitable for the Swisscom Anschluss (in this case they use PPPoE over BBCS and therefore VLAN ID 11 for fiber optics…)

Did you choose anything related to Swisscom when selecting your ISP? For example, I can imagine that a parameter has already been set that is now somehow preventing it. AVM should check that. I assume they will do the same if you tell them

I don’t have a Fritzbox or Swisscom Anschluss to test this myself.

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@Tux0ne wrote:

Those affected are welcome to contact our support: avm.de/service/support

Are you sure you don’t want a referral code too? 😉


@Tux0ne: Thanks, I did that without a referral code. 😉 I generated the support data for the Büxe for the request. The information in there already suggests that I won’t get a prefix. Everything is somehow logical if the box does not receive a DHCPv6 server…:

0: IPv6: native (none)
0: IPv6: connecting
0: IPv6: no address
0: IPv6: no prefix (0)
0: IPv6: mtu 1500
0: IPv6: error 4/0×2/8 2022-12-12 21:43:55 UnspecFail (DHCPv6/unknown)
0: IPv4: native
0: IPv4: connected since 2022-12-12 21:43:55 (setup time 0 secs) (connect cnt 3)
0: IPv4: disconnect prevention disabled
0: IPv4: ip ww.xx.yy.zz mask 255.255.252.0 gw ww.xx.yy.zz dhcp mtu 1500
0: IPv4: masqaddr ww.xx.yy.zz
0: IPv4: dns 195.186.4.162 195.186.1.162

Where ww.xx.yy.zz is my WAN IP. Let’s see what the Berliners will answer. Keep you posted.

🙋‍♂️

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@andiroid You probably didn’t understand the referral code. Thomas tries to reduce his monthly bill at Init7 by handing out referral codes for switching there. 😉 Of course he has to do something more subtle in the Swisscom forum.

Otherwise: [https://avm.de/service/wissenskatalog/dok/FRITZ-Box-7490/573\_IPv6-in-FRITZ-Box-einrichten/](https://avm.de/service/wissensdatendaten/dok /FRITZ-Box-7490/573_IPv6-in-FRITZ-Box-setup/)

However, I fear that the instructions are rather inadequate.

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@5018 wrote:

@andiroid You probably didn’t understand the referral code.

But I’m afraid that the instructions are rather inadequate.


@5018: Thanks, I actually didn’t understand that. 😶‍🌫️ I actually came across the link from several sites and it actually didn’t help. I’m excited to see what AVM does with my support request… 😐

@Tux0ne: The fiber arrived in the technical room last Monday. I will probably set out to convert my local infrastructure to fiber in 2023. And if things are going well, I’ll do the accounting. It may well be that I have to think about the code again. 👍

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My brother “unfortunately” also has a 7490 because his provider in Germany distributed the things. This provider has an FTTH network, but still doesn’t support IPv6 (that such a thing still exists), which I didn’t even know. I wanted to see what was listed there under IPv6.

I can imagine that AVM will have to rework this. Actually they had enough time, but Swisscom is understandably not a priority for them 😉

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@andiroid: The same situation occurs for me (Fritz 758x) - “Internet connection IPv6 could not be established: No response from DHCPv6 server (SOL)”

For dual stack, the “Use native IPv4 connection” setting under IPv6 connection would be the right one on the FB, but in the end the FB tries everything to achieve a connection.
“Rapid Commit” is probably the only option where you could do something wrong regarding IPv6 address reference (I tried with and without RC, same result).

I did a packet dump over an IPv6 connection attempt and found the following:
- There are no RAs on the WAN side, so the FB cannot obtain a prefix and sends a “SOLICIT XID” request (DHCPv6)
- the SOLICIT

It looks to me that no IPv6 is active on the Anschluss, i.e. Swisscom has not switched on a dual stack.

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    Maybe connect a real router. It will then probably get native IPv6. Then you can always go back to a FB. Maybe it will work then.

    Show original language (German)

    “correct”?= Swisscom CPE?

    According to this thread, this was tried earlier, but the dual stack migration may not have been completed at that time.

    Maybe someone “affected” can try this again, I’m holding back, the “step back” from Swisscom CPE to “third-party router” is always tedious.

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    @5018 wrote:

    Maybe connect a real router. It will then probably get native IPv6. Then you can always go back to a FB. Maybe it will work then.


    I studied your sentences for a long time and at first I thought you were trolling again. And I almost shouted “no router requirement”. Regression is a bit harsh. My third-party router is not a step backwards. It hits with Mesh, Google address book, regular free feature release, re-use of ‘old’ routers as AP… I digress. 🤪 But you suspect that the Swisscom router activated IPv6 on the Anschluss and then the FB finally found a DHCPv6? 🤔 I’m hardly a proven expert in IPv6, but I heard it differently here (a classic!) and remembered it differently: IPv6 configures itself. All changes are flushed through the network. Be it a new prefix or an initial DHCPv6. I think that the systems at either Swisscom or AVM need to be dewormed. 🪲

    Other hypotheses are welcome to read here. I’ll stay tuned. 👀

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    @Scheufreveu69 wrote:

    According to this thread, this was tried earlier, but the dual stack migration may not have been completed at this point.

    Maybe someone “affected” can try this again, I’m holding back, the “step back” from Swisscom CPE to “third-party router” is always tedious.


    I disposed of my Swisscom router. 😁 I will only do this if I have the glass in the house and no other solution at hand. And no, it’s not a step backwards if I can then disconnect the IB from the power again. I know the drama with IP telephony, router behind router… and it’s just plain scary. I will probably have to evaluate the AVM alternative soon. 😉

    Show original language (German)

    @andiroid wrote: I know the drama with IP telephony, router behind router… and it’s just plain scary…


    Then the problem will be the same as with AVM. Too little documented, too little interest, too little experience and therefore it is handled incorrectly 😉

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    @Scheufreveu69 wrote:

    @andiroid: I have the same situation (Fritz 758x) - “Internet connection IPv6 could not be established: No response from DHCPv6 server (SOL)”

    For dual stack, the “Use native IPv4 connection” setting under IPv6 connection would be the correct one on the FB, but in the end the FB tries everything to achieve a connection.
    “Rapid Commit” is probably the only option where you could do something wrong regarding IPv6 address reference (I tried with and without RC, same result).

    I did a packet dump over an IPv6 connection attempt and found the following:
    - There are no RAs on the WAN side, so the FB cannot obtain a prefix and sends a “SOLICIT XID” request (DHCPv6)
    - the SOLICIT XID request is acknowledged on the WAN side by the VRRP framework with “unspec failure”, with virtual MAC address 00:00:5E:00:01:01, normally used for IPv4.

    It looks to me that no IPv6 is active on the Anschluss, i.e. Swisscom has not switched on a dual stack.


    We’ll ask around. No IP fan has a RES Anschluss. But there will be someone who can figure it out ☺️

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    @Tux0ne wrote:


    The same situation occurs for me (Fritz 758x) - “Internet connection IPv6 could not be established: No response from the DHCPv6 server (SOL)”

    I did a packet dump over an IPv6 connection attempt and found the following:
    - There are no RAs on the WAN side, so the FB cannot obtain a prefix and sends a “SOLICIT XID” request (DHCPv6)
    - the SOLICIT

    It looks to me that no IPv6 is active on the Anschluss, i.e. Swisscom has not switched on a dual stack.


    Let’s ask around. No IP fan has a RES Anschluss. But there will be someone who can figure it out ☺️


    @Tux0ne: Cool Thanks for the additional info. It confirms my half-knowledge with a few interesting facts. I’ll have to try the packet dump thing too, just the right activity for dark winter nights. 😉

    @Swisscom: Does anyone know why the 6RD server is switched off and dual stack is not activated? Or asked specifically: What needs to be done to activate dual stack? Can I find the setting in Kundencenter? Or is the assumption correct that you first have to connect an IB to activate the feature? Questions after questions… 😕 It would be nice to hear something relevant from the operator, I’m hardly the only one with a third-party router in the network!? I’ll also do a nice know-how article - as a return / win-win situation. 😀

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    @andiroid

    “It would be nice to hear something relevant from the operator, I’m hardly the only one with a third-party router in the network!? I’ll also do a nice know-how article - like that in return / win-win situation. ”

    You can forget about the deal, Swisscom understandably does not provide support for third-party routers.

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    @andiroid the only one not, but you belong to dev. a very small minority. And this minority is then spread across several third-party devices.

    You can get [this information](https://www.swisscom.ch/de/privatkunden/hilfe/geraet/internet-router/ Fremdrouter.html) from Swisscom. Apparently some people can relate to it (I can’t).

    Fight your way through the forum, solve the problem, then document it and create a know-how article about it.

    The platform here is also intended for this.

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    @kaetho wrote:

    @andiroid the only one not, but you belong to dev. a very small minority. And this minority is then spread across several third-party devices.

    Hey @kaetho, thanks for the feedback. Do you have a specific source for this? So the PCTip here described something different. And if DE has been explicitly banning the router requirement for a long time, then it can’t be that difficult to support a 24-year-old standard on several devices.

    You can get [this information](https://www.swisscom.ch/de/privatkunden/hilfe/geraet/internet-router/ Fremdrouter.html) from Swisscom. Apparently some people can relate to it (I can’t).

    I didn’t know it, but it’s a bit poor and doesn’t help me with my problem. But ultimately - to tie in with the above - it’s an attitude that I don’t understand. After all, there are also lists of “certified” routers. Also published by Swisscom. So at least tests are apparently happening and because no one has contacted @Swisscom, my assumption is:

    • The 6RD servers are now obsolete. They worked perfectly for the I and F boxes and were of the same quality. It’s entirely understandable that you want to switch it off.
    • The standards referenced by you have hardly changed. IPv6 standardized as a standard: Native, 6rd, 6-to-4, 4-to-6, etc. It works.
    • I no longer believe that the error lies with AVM. The release notes of the IPv6-related FW changes were already 5..6 years ago.
    • I also believe that Swisscom wants to roll out IPv6 on a large scale and can activate it with a switch in the I-Büxe. Possibly via TR069 (or some other proprietary way).
    • But nobody thought that this switch also has to be available in Kundencenter. The offshore programmer may also have made a mistake. Maybe the feature was thrown out at the last Scrum Sprint@“x”#584836 meeting. I think they are well aware of what the problem with the F-Boxes is and can’t fix it in the short term.

    I don’t hold grudges. There are enough cases in this forum where the subscriber number was transmitted via PM and the DSL Anschluss was debugged. But because my problem is general and not specific, I cannot be helped through the short official channels. But as a customer, I would appreciate it if people took me seriously and briefly hit the keys and clarified the matter:

    “Dear Andiroid, we are sorry that your IPv6 does not work on your F-Büxe. We are aware of the problem and will be solved [in the next XY conversion of the backbone | with the 2023 release of Kundencenter | with whatever]. But we expect this to happen on April 2023. Don’t hold a grudge if it happens a month later Greetings - your Swisscom Nerd Department”

    Thank you @kaetho for listening to me. 🙋‍♂️

    Everyone have a restful evening and a peaceful pre-Christmas season.

    🕯️🌲❄️☃️

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    Scheufreveu69 wrote:

    @andiroid: the same situation occurs for me (Fritz 758x) - “Internet connection IPv6 could not be established: No response from DHCPv6 server (SOL)”

    […]

    I did a packet dump over an IPv6 connection attempt, and […]

    Oh, that comes from you @Scheufreveu69 and not from @Tux0ne… 😵

    I have now also made a packet dump! Another wonderful feature of the F-Büxe! Can the I-buses do that too? 😟

    I only saw 12 out of 79,580 packages with IP.version == 6:

    andiroid_0-1671130937896.png

    All with link-local addresses and no (0 in words zero) packet was returned. I hardly believe that AVM can do anything (wrong). 🤪

    So dear @Swisscom: Pinch yourself and please tell me where I can switch on IPv6 for my DSL Anschluss.

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    @hed wrote:

    You can forget about the deal, Swisscom understandably does not provide support for third-party routers.


    As described here, I have absolutely no understanding of this. I feel like it was 1987, when it was forbidden, under threat of martial punishment, to connect the analogue telephone with pulse dialing with a PTT 4-pin adapter (only for export!), which I had bought in Eschenmoser for 50 Stutz, to the TT socket of the PTT . To do this, you had to rent the 50 desk phone in black or gray from the monopolist for 20 Stutz per month.

    With your attitude you are cementing an anti-market, customer-unfriendly attitude of a state-owned company (The Swiss Confederation holds a [capital interest](https://de .wikipedia.org/wiki/Capital participation “Capital participation”) of 51.0 percent in Swisscom [Source Wikipedia]) which belongs to you, me, all of us. No, I can understand your attitude, I can understand it with difficulty, but I certainly don’t approve of it. Where is the progress? The innovation? The customer proximity!?

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    @andiroid

    If you were to build support for the many third-party routers because of a handful of freaks, everyone else would have to pay for it in the end and I’m not willing to do that.

    Swisscom provides a forum where the nerds can exchange ideas and find solutions together, in my opinion nothing more is necessary.

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