Hello everyone,

I'm currently trying to move my OpenVPN users from TAP devices to TUN devices because Apple states that they will disable TAP in the near future.
I have it working for IPv4 just fine, but IPv6 gives me a little OSPF6 issue. The tun0 interface has the following state, even when people are connected:

tun0 is up, type POINTOPOINT
Interface ID: 42
Internet Address:
    inet : 172.31.8.1/32
    inet6: 2a02:b70:0:2::1/64
Instance ID 0, Interface MTU 1500 (autodetect: 1500)
MTU mismatch detection: disabled
Area ID 0.0.0.0, Cost 10
State Down, Transmit Delay 1 sec, Priority 1
Timer intervals configured:
   Hello 10, Dead 40, Retransmit 5
DR: 0.0.0.0 BDR: 0.0.0.0
Number of I/F scoped LSAs is 0
    0 Pending LSAs for LSUpdate in Time 00:00:00 [thread off]
    0 Pending LSAs for LSAck in Time 00:00:00 [thread off]

I think the "State Down" is the root cause for the routes to this interface not showing up on other routers, which results in IPv6 traffic failing completely.
Could someone tell me if this is intentionally, or that I have some potential config error?
If I need to share my whole configuration, let me know, my hope is that it is something simple related to TUN interfaces / POINTTOPOINT interfaces.

interface tun0
ipv6 address 2a02:b70:0:2::1/64
ipv6 nd suppress-ra
ipv6 ospf6 mtu-ignore
ipv6 ospf6 network point-to-point
no link-detect

router ospf6
interface tun0 area 0.0.0.0

ipv6 route 2a02:b70:0:2::/64 tun0

Kind regards Jan Hugo Prins DevOps Engineer

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