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IPv6 (downonthestreet.eu)
submitted 5 months ago by to c/selfhosted@lemmy.world
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I noticed by accident that in my home network IPv6 is not functional, so I decided to fix that, and started studying about IPv6.

I have an opnSense firewall which connect to my ISP port as WAN, and then the LAN. The point is that o do not get a GUA on my WAN, but I get it if I connect directly a pc to the ISP port....

The opnSense seems to be configured properly, and the ISP itself do provide IPv6 as I can get a GUA address when I connect my Linux laptop to the ISP router, so I am not sure...

Anybody has any hints?

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[–] [S] 6 points 5 months ago (2 children)

How do I find out if the ISP is handling me a single address or a /64 or whatever?

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  • [–] 5 points 5 months ago

    Not familiar with opnSense, but on your PC, you can check the address it assigns - if it's /128, it's a single address.

    My ISP does not assign a prefix for delegation unless you specifically ask for it. I had to add "request_prefix 1" to my dhclient.conf file to get a /64 I assume opnSense has a friendly setting somewhere for that. For me, the key phrase was 'prefix delegation.' After I got that, I could search around and get my solution.

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  • [–] 4 points 5 months ago

    What IPv6 Configuration Type are you using on the WAN interface? The Interfaces -> Overview page should also show it based on the /48 or whatever at the end of the IP and if you're using DHCPv6 then often you can request how many with the Prefix Delegation Size option, though it's not guaranteed they'll actually give you that large of a block or even pay any attention to that option.

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