IPv4 and IPv6 Connectivity?

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  1. Posts : 161
    Win 10 Home (x64-bit)
       #1

    IPv4 and IPv6 Connectivity?


    Hi,

    I did a clean install of my Win10 Home about a week ago and it all turned out for the good. However, tonight while nosing around my Network Connections I notice I am connected to the Internet by Ethernet (Realtek PCle GBF Family Controller) which I thought I was since I had a cable from my Windstream Router to my PC.

    When I would click on 'Status of this Connection' (Ethernet) I saw that under Connection there was listed:

    IPv4 Connectivity: Internet
    IPv6 Connectivity: No Network Access

    I always thought that both of them should say 'Internet'. Am I right or wrong?

    Also, while looking at the Network Connections I see 'WiFi' (Qualcomm Atheros AR9485 802.11b/g/n Wifi adapter) is also listed. It says 'not connected'. It shows a 'Red' X on it along with [B]five green 'Bars'[/B].

    Should the WiFi connection be displayed that way?

    Thanks and regards,
    2harts4ever
      My Computer


  2. Posts : 9,765
    Mac OS Catalina
       #2

    That is because IPv6 is not used outside of the gateway. Only Homegroup uses it. If you want to use Dual Stack, which uses both IPv4 and IPv6, you would need a router capable of it. Any IPv4 traffic that passes outside the gateway and may direct from your ISP to a server that uses IPv6, it will do so with 6:4. All IPv4 packets are encapsulated in a IPv6 packet and appear to be transparent when they reach the router on the other end, that just sees the IPv6 packet until it gets past the Gateway to be routed to the server, which can be using only IPv4, so it would get a IPv4 packet after the Gateway removes the Encapsulating. It does the reverse when the packet goes back out and gets sent back to you.

    You can check your outside the Gateway IPv6 status at IPv6 test - IPv6/4 connectivity and speed test

    Depending on your web browser, it may come back and state that DNS fallback failed which is normal. DNS6 + IP6 should also show failed. Everything else should show Green.

    The biggest problem right now is that IPv6 still has a lot of security problems with it, so that is why it is still sitting in a test mode. We may never see it become the norm, since there are still more than enough IPv4 addresses available between ISP's and the Backbones. The media hype by the likes of Cisco, etc. is to sell their Dual Stack gear more than anything.
      My Computer


  3. Posts : 161
    Win 10 Home (x64-bit)
    Thread Starter
       #3

    bro67 said:
    You can check your outside the Gateway IPv6 status at IPv6 test - IPv6/4 connectivity and speed test

    Depending on your web browser, it may come back and state that DNS fallback failed which is normal. DNS6 + IP6 should also show failed. Everything else should show Green.
    Hi bro67,

    I ran the test and my results were as you said. So, while most everything you said went right over my '74-year-old brain-housing group' , I guess from what you said my connections are correct.

    I appreciate you taking the time to try to enlighten me.

    Thanks and regards,
    2harts4ever
      My Computer


  4. Posts : 459
    Windows 8&10
       #4

    bro67 said:
    That is because IPv6 is not used outside of the gateway.
    Does the attachment change anything or is this what you would expect?
    Attached Thumbnails Attached Thumbnails IPv4 and IPv6 Connectivity?-ipv6.jpg  
      My Computer


  5. Posts : 151
    Windows 10
       #5

    Looking at Event Viewer, noticed some inbuilt programs trying to connect through IPv6 which end up with errors.

    Enables the IPv6, errors gone and in netstat, v6 connections always alive, not just for Homegroup, AFAIK.
      My Computer


  6. Posts : 2,324
    Win10
       #6

    IPV6 mostly depends on your ISP now days , more and more are supporting it , mine for eg. does if you are connected via Fibre but not Copper but they don't advertise it yet, I too use the ipv6-test.com test and regularly get 20/20 especially if you refresh the browser window after the 1st connection .
      My Computers


  7. Posts : 822
    Microsoft Windows 10 Pro 64-bit
       #7

    Most third world countries have better ipv6 support - Why because they are just starting ISP's that use newer equipment than say the USA, Why would the US carriers spend millions on new equipment when they can continue to put those millions in their pocket. A lot of mobile internet supports IPv6 because they are using newer equipment.

    Source:
    http://ipv6now.com.au/primers/IPv6Myths.php

    Some organisations will continue to use IPv4 and use mechanisms such as NAT to buy time. Countries like India, with huge populations and burgeoning technical competence, will almost certainly not attempt this, and will move to IPv6 directly. In fact, we can see this happening already in places like Japan, Korea and China. These countries either are already or will become very large markets. Organisations that wish to be active in those markets but do not use IPv6 will be at some competitive disadvantage.
      My Computer


  8. Posts : 9,765
    Mac OS Catalina
       #8

    Saltgrass only that your not getting 6:4 tunneling. What Web Browser? Chromium and Chrome by default are set up to not do any fallback. That is by design until they enable that in the code at who knows how far down the road. They took it out some time ago from net-internals/dns, who knows if they ever will put it back.
      My Computer


  9. Posts : 9,765
    Mac OS Catalina
       #9

    Private said:
    Looking at Event Viewer, noticed some inbuilt programs trying to connect through IPv6 which end up with errors.

    Enables the IPv6, errors gone and in netstat, v6 connections always alive, not just for Homegroup, AFAIK.
    If you have IPv6 enabled for the network adapters you will see a default IP handed out in status, but when you list in Command all requests for DNS, you will not see any IPv6 ip's.

    I really would not worry about it as I stated before. It will not have any affect on using the Internet or connecting within your network.
      My Computer


  10. Posts : 4,594
    Windows 10 Pro
       #10

    yep, IPv6 is provided by your ISP, as mentioned they won`t implement it until they have to.

    It`s nothing special, it`s just more ip addresses because they are running out of the IPv4 type.

    IPv6 - Wikipedia
      My Computers


 

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