Neighbor Solicitation packets try to go out on enc0

[Axel Rau]

Hello

I have a router, running rad(8).
SLAAC works as expected, but I see:
- - -
11:40:58.374264 rule 16/(match) [uid 0, pid 97445] block out on enc0: \
??:??:??:34::a > ??:??:??:34:3551:6e57:d90b:5a77: \
icmp6: neighbor sol: who has ??:??:??:34:3551:6e57:d90b:5a77\
(src lladdr: 00:60:e0:5a:75:43) [bad icmp6 cksum 0! -> b7e4] (len 32, hlim 255)
- - -
related if:
- - -
vlan14: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        lladdr 00:60:e0:5a:75:43
        index 16 priority 0 llprio 3
        encap: vnetid 14 parent em3 txprio packet rxprio outer
        groups: vlan
        media: Ethernet autoselect (1000baseT full-duplex)
        status: active
        inet 172.16.14.1 netmask 0xffffff00 broadcast 172.16.14.255
        inet6 fe80::260:e0ff:fe5a:7543%vlan14 prefixlen 64 scopeid 0x10
        inet6 ??:??:??:34::a prefixlen 64

What is going wrong here?
Axel
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