Re: bridge(4) and IPv6 broken?

On 02.01.24 00:40, Lexi Winter wrote:
> hello,
>
> i'm having an issue with bridge(4) and IPv6, with a configuration which
> is essentially identical to a working system running releng/14.0.
>
> ifconfig:
>
> lo0: flags=1008049<UP,LOOPBACK,RUNNING,MULTICAST,LOWER_UP> metric 0 mtu 16384
> 	options=680003<RXCSUM,TXCSUM,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6>
> 	inet 127.0.0.1 netmask 0xff000000
> 	inet6 ::1 prefixlen 128
> 	inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
> 	groups: lo
> 	nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
> pflog0: flags=1000141<UP,RUNNING,PROMISC,LOWER_UP> metric 0 mtu 33152
> 	options=0
> 	groups: pflog
> alc0: flags=1008943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,LOWER_UP> metric 0 mtu 1500
> 	options=c3098<VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MCAST,WOL_MAGIC,VLAN_HWTSO,LINKSTATE>
> 	ether 30:9c:23:a8:89:a0
> 	inet6 fe80::329c:23ff:fea8:89a0%alc0 prefixlen 64 scopeid 0x3
> 	media: Ethernet autoselect (1000baseT <full-duplex>)
> 	status: active
> 	nd6 options=1<PERFORMNUD>
> wg0: flags=10080c1<UP,RUNNING,NOARP,MULTICAST,LOWER_UP> metric 0 mtu 1420
> 	options=80000<LINKSTATE>
> 	inet 172.16.145.21 netmask 0xffffffff
> 	inet6 fd00:0:1337:cafe:1111:1111:829a:595e prefixlen 128
> 	groups: wg
> 	tunnelfib: 1
> 	nd6 options=101<PERFORMNUD,NO_DAD>
> bridge0: flags=1008843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,LOWER_UP> metric 0 mtu 1500
> 	options=0
> 	ether 58:9c:fc:10:ff:b6
> 	inet 10.1.4.101 netmask 0xffffff00 broadcast 10.1.4.255
> 	inet6 2001:8b0:aab5:104:3::101 prefixlen 64
> 	id 00:00:00:00:00:00 priority 32768 hellotime 2 fwddelay 15
> 	maxage 20 holdcnt 6 proto rstp maxaddr 2000 timeout 1200
> 	root id 00:00:00:00:00:00 priority 32768 ifcost 0 port 0
> 	member: tap0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
> 	        ifmaxaddr 0 port 6 priority 128 path cost 2000000
> 	member: alc0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
> 	        ifmaxaddr 0 port 3 priority 128 path cost 55
> 	groups: bridge
> 	nd6 options=1<PERFORMNUD>
> tap0: flags=9903<UP,BROADCAST,PROMISC,SIMPLEX,LINK0,MULTICAST> metric 0 mtu 1500
> 	options=80000<LINKSTATE>
> 	ether 58:9c:fc:10:ff:89
> 	groups: tap
> 	media: Ethernet 1000baseT <full-duplex>
> 	status: no carrier
> 	nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
IPv6 enabled interfaces need a link-local address for normal operation. 
Please set the auto-linklocal flag on the bridge and try again.