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Frontier Communications IPv6 support (wetshav.ing)
submitted 11 months ago by to c/networking@sh.itjust.works
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I've had Frontier fiber internet for the past 2-ish years. No complaints at all, but the nerd in me desires IPv6. I have the Frontier provided ONT device but declined their router. I have a MikroTik RB5009 which has been "searching" for an IPv6 prefix.

Anyway, I found this link during my research some time ago, and it finally looks like Frontier is enabling IPv6 for people.

I'm still not sure I'll be able to get it until I get the settings just right, but thought I'd share.

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[–] [S] 2 points 11 months ago (9 children)

Nothing really stuck out when I did this. I also tried to Torch my WAN port from WinBox, but didn't see anything. I'm not quite sure what to filter for there. I'm not very well versed in this sort of thing.

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  • [–] 1 point 11 months ago (8 children)

    Ahh okay, could you at least see your router trying to request an IPv6? You might have to disconnect and reconnect the WAN while the packet capture is going.

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  • [–] [S] 2 points 11 months ago (7 children)

    I'm still not seeing anything, but it dawned on me that's probably to be expected since my WAN port (ether2) isn't part of my main bridge (bridge1)...

    So, I tried including ether2 in bridge1, but didn't see anything different. I disabled and enabled ether2 but that didn't make anything pop up on wireshark.

    In addition to following this guide that you linked I also tried filtering for ipv6. I also tried udp.dstport == 37008. No results there.

    Oh well, I'll just keep waiting and watching!

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  • [–] 2 points 11 months ago (6 children)

    Your WAN shouldn't be part of your bridge. Are you getting any traffic in Wireshark? You do also need to enable packet sniffer on the router and point it to the IP of the computer you're running Wireshark on.

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  • [–] [S] 2 points 11 months ago (5 children)

    Ah, thanks. Now I'm seeing lots of stuff when filter ipv6, but it all seems to be local. I replugged ether2 during the capture but nothing stands out. Lots of MDNS, ICMPv6, DHCPv6, and MNDP listed for Protocol. Source is always fe80::xxx, Destination is always ff02::...

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  • [–] 1 point 11 months ago (4 children)

    Yeah thats normal, fe80:: is link local, ff02:: is broadcast. Is the source always your router's address, or is there another addresses there? DHCPv6 and ICMPv6 (for SLAAC), are the important protocols there.

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  • [–] [S] 2 points 11 months ago (3 children)

    Today I see some interesting things under the TCP protocol. They're marked as [TCP Retransmission]. Source is 2600:1000:b150:3c0:redacted, destination is 2001:470:1f06:redacted.

    To answer your question from yesterday, the ICMPv6 stuff that I see is coming from a couple of Amcrest cameras, and they say "Router Solicitation from xx:xx:xx:mac address".

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  • [–] 2 points 11 months ago (2 children)

    I see is coming from a couple of Amcrest cameras

    Oh yeah, that still seems to be from your LAN. On the Mikrotik set your WAN interface in the filters tab of the packet sniffer. Also if you haven't already, your WAN shouldn't be bridged with your LAN, since your router will route between them, a bridge is like a network switch.

    Basically I'd like to see the Router Solicitation on your WAN from your Router, and hope that your ISP responds back with a Router Advertisement; or a Solicit for DHCPv6, and the whole exchange.

    Also 2001:470:1f06:redacted looks like a Hurricane Electric IP.

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  • [–] [S] 2 points 11 months ago (1 child)

    Interesting re: Hurricane Electric. I removed that config a long time ago, but the Hurricane Electric site still has the tunnel set up so maybe it pings from time to time.

    My WAN port isn't part of the bridge, I just did that temporarily as an experiment but it's back to normal now.

    That makes sense about filtering -- I didn't notice that tab before in the Packet Sniffer!

    I think there's a little bit of action when I hit "renew" on the IPv6 DHCP Client. I tried with "User Peer DNS" checked and unchecked but I couldn't pick out a difference. Anything in the below list that sticks out?

    wireshark

    image

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  • [–] 2 points 11 months ago

    Well, your router is trying, but your ISP isn't replying, so I'd say you don't have IPv6 yet.

    I have had ISPs where if you send a bunch of DHCP solicits/discovers too quickly, then they stop replying. So maybe disable DHCPv6 for a few hours, and enable it while watching it on the packet sniffer, incase it sends a weird response.

    Also it shouldn't make any difference, but in IPv6/ND change all to bridge; your router looks like it's advertising itself as a default route to your ISP's router, and that just seems wrong.

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