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Joined 1 year ago
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Cake day: June 4th, 2023

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  • Top to bottom:

    • Unifi US-16-XG
    • OPNsense DEC740
    • Unifi Switch 24
    • Unifi Switch 16 PoE
    • DIY server with an AsrockRack X470D4U mainboard
    • DIY DAS in an old server case with 18 3.5" bays

    Not in picture: My UPSes, RIPE Atlas probe and an Odroid N2+ running my Home Assistant instance

    The server runs Proxmox with a bunch of LXC containers running a Docker Swarm cluster.

    There’s too many services running so I’m not listing them all. Let’s just say my phone is not going to be thrilled if it goes down. Also, this post was posted through said server.














  • Domi@lemmy.secnd.metoSelfhosted@lemmy.worldHelp with IPv6
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    5 months ago

    Off the top of my head, why did you set the prefix to 0x1? I was under the impression that it only needs to be set if there are multiple vlans

    I have multiple VLANs, 0x1 is my LAN and 0x10 is my DMZ for example. I then get IP addresses abcd:abcd:a01::abcd in my LAN and abcd:abcd:a10::bcdf in my DMZ.

    However, I get a /56 from my ISP wich gets subnetted into /64. I heard it’s not ideal to subnet a /64 but you might want to double check what you really got.

    what are your rules for the WAN side of the firewall?

    Only IPv4 + IPv6 ICMP, the normal NAT rules for IPv4 and the same rules for IPv6 but as regular rule instead of NAT rule.

    My LAN interface is only getting an LLA so maybe it’s being blocked from communicating with the ISP router.

    If you enable DHCPv6 in your network your firewall should be the one to hand out IP addresses, your ISP assigns your OPNsense the prefix and your OPNsense then subnets them into smaller chunks for your internal networks.

    It is possible to do it without DHCPv6 but I didn’t read into it yet since DHCPv6 does exactly what I want it to do.


  • Domi@lemmy.secnd.metoSelfhosted@lemmy.worldHelp with IPv6
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    5 months ago

    I’m no expert on IPv6 but here’s how I did it on my OPNsense box:

    • Activate IPv6 on your WAN interface (probably already done)
    • Activate IPv6 on the LAN interface, use Track interface on IPv6, track the WAN interface and choose a prefix ID like 0x1
    • Activate DHCPv6 under Services -> ISC DHCPv6 for your LAN interface (you can shorten the range like ::eeee to ::ffff, you don’t have to type the full IP)
    • Activate Router advertisments under Services -> Router Advertisments for your LAN interface (set Advertisments to Managed and Priority to High

    After that your DHCP server should serve public IPv6 addresses inside of your prefix and clients should be able to connect to the internet.

    A few notes:

    • Don’t forget to add an allow rule for IPv6 on your LAN as well if you only have one for IPv4
    • Repeat the steps above for every VLAN you have, always use a different prefix ID
    • You don’t have to use NAT rules with IPv6 anymore and can just directly add a regular firewall rule to WAN with the target IP and port and you are done
    • Make sure you don’t have any of the various “Disable IPv6” toggles enabled, there’s a few in the firewall settings and general settings for example