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22.7 Legacy Series / IPv6 delegated prefix is updated on LAN interface but not for LAN devices
« on: April 25, 2023, 01:58:15 am »
Configuration details below. As in the title, the IPv6 delegated prefix is never getting updated for LAN devices. I'm not using DHCPv6 on the LAN, I only want SLAAC addresses. This works for the most part. But for some reason, when the delegated prefix changes (thanks, Starlink), the prefix is updated on the (tracking) LAN interfaces but RADVD never gets updated.
If on Interfaces/Overview/WAN I click reload for DHCPv4/v6, then it immediately updates and the devices are all happy with correct IPv6 addresses. Is there something wrong in the config below, or is this a known issue? I checked github for issues and some of them seem like they could apply but I am not sure.
OPNsense 22.7.11_1-amd64
ISP: Starlink with CGNAT and IPv6: WAN Address stays the same, but delegated prefix changes every few days
WAN IPv6 Configuration Type: DHCPv6
Request only an IPv6 prefix: Checked
Prefix delegation size: 56
Send IPv6 prefix hint: Not Checked
Use IPv4 connectivity: Not Checked
Use VLAN priority: Not Checked
LAN IPv6 Configuration Type: Track Interface
Track IPv6 Interface: WAN
IPv6 Prefix ID: 0x0
Manual configuration: Allow manual adjustment of DHCPv6 and Router Advertisements : Checked
Enable DHCPv6 server on LAN interface: Not Checked
Available prefix delegation size: 57 bits (informational only field)
Router Advertisements: Unmanaged
Router Priority: Normal
If on Interfaces/Overview/WAN I click reload for DHCPv4/v6, then it immediately updates and the devices are all happy with correct IPv6 addresses. Is there something wrong in the config below, or is this a known issue? I checked github for issues and some of them seem like they could apply but I am not sure.
OPNsense 22.7.11_1-amd64
ISP: Starlink with CGNAT and IPv6: WAN Address stays the same, but delegated prefix changes every few days
WAN IPv6 Configuration Type: DHCPv6
Request only an IPv6 prefix: Checked
Prefix delegation size: 56
Send IPv6 prefix hint: Not Checked
Use IPv4 connectivity: Not Checked
Use VLAN priority: Not Checked
LAN IPv6 Configuration Type: Track Interface
Track IPv6 Interface: WAN
IPv6 Prefix ID: 0x0
Manual configuration: Allow manual adjustment of DHCPv6 and Router Advertisements : Checked
Enable DHCPv6 server on LAN interface: Not Checked
Available prefix delegation size: 57 bits (informational only field)
Router Advertisements: Unmanaged
Router Priority: Normal