Hello,
I'm setting up OPNSense for the first time, and having some issues with IPv6. My ISP (AT&T Uverse Fiber) gives me, effectively, one /64 block without doing some hackery I don't yet understand, and requires Prefix Delegation. I set the WAN side up to get the prefix only with the prefix hint, using a /64 block size, and it seems to have worked.
On the LAN, however, I have no IPv6 at all. OPNSense simply shows no address there. Right now, IPv6 LAN is set to track the WAN IPv6 settings, and the DHCPv6 service refuses to start (red stop sign icon in the Lobby Services list). I'm pretty sure this is the problem, but I have no idea what settings I should actually use.
I've also noticed that I don't have a Router Advertisements service running and visible under Services, just DHCPv6--which refuses to work.
I'd appreciate any advice.
Here's what the Interfaces Overview is telling me for the WAN.
Uplink interface (wan, igc0)
DHCPup Reload ReleaseMAC address$MACMTU1500IPv4 address$IPv4_ADDR/23IPv4 gateway$FIBER_GATEWAYIPv6 link-localfe80::$IPv6_LINK_LOCAL_ADDR/64IPv6 address2600:1700:.../64IPv6 gatewayfe80::a9b:...DNS servers$FIBER_GATEWAYMedia2500Base-T <full-duplex>
[/size]Here's the LAN. Notice there's no [/color][/size]IPv6 infrastructure at all.
PrimaryLAN interface (lan, igc1)
[/size][/color]
MAC address$MACMTU1500IPv4 address$ROUTER_LAN_ADDRESS/24IPv6 addressMedia2500Base-T <full-duplex>
[/size]Here's the relevant WAN Interface settings:[/color]
[/size]Track IPv6 Interface
[/size] (https://10.10.100.1/interfaces.php?if=lan#)[/url][/color][/size][/color] IPv6 Interface | Uplink [/color][/size]
Uplink This selects the dynamic IPv6 WAN interface to track for configuration |
[/color][/size] (https://10.10.100.1/interfaces.php?if=lan#)[/url][/color] IPv6 Prefix ID
0x[/size]
The value in this field is the delegated hexadecimal IPv6 prefix ID. This determines the configurable /64 network ID based on the dynamic IPv6 connection.[/size] (https://10.10.100.1/interfaces.php?if=lan#)[/url][/color][/font][/size][/color] Manual configuration[size=inherit] Allow manual adjustment of DHCPv6 and Router Advertisements
If this option is set, you will be able to manually set the DHCPv6 and Router Advertisements service for this interface. Use with care.[/size]