General • IPv6 SLAAC wrong prefix

[admin@fw-xxx0-0] > /ipv6 export# 2024-12-27 22:08:31 by RouterOS 7.14.3# software id = JLI2-LN5C## model = CCR1009-8G-1S-1S+# serial number = xxx/ipv6 addressadd address=::90 from-pool=fiber6 interface=vlan90/ipv6 dhcp-clientadd add-default-route=yes interface=wan10 pool-name=fiber6 pool-prefix-length=48 request=address,prefix \    use-peer-dns=no/ipv6 firewall filteradd action=accept chain=input comment="allow established and related" connection-state=established,relatedadd action=accept chain=input comment="accept ICMPv6" protocol=icmpv6add action=accept chain=input comment="defconf: accept UDP traceroute" port=33434-33534 protocol=udpadd action=accept chain=input comment="accept DHCPv6-Client prefix delegation." dst-port=546 protocol=udp \    src-address=fe80::/16add action=accept chain=input comment="allow allowed addresses" disabled=yes src-address-list=allowedadd action=drop chain=inputadd action=accept chain=forward comment=established,related connection-state=established,relatedadd action=drop chain=forward comment=invalid connection-state=invalid log=yes log-prefix=ipv6,invalidadd action=accept chain=forward comment=icmpv6 protocol=icmpv6add action=accept chain=forward comment="local network" in-interface=!wan10add action=drop chain=forward log-prefix=IPV6

3: wlp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000    link/ether 04:cf:4b:1e:xx:xx brd ff:ff:ff:ff:ff:ff    altname wlx04cf4b1e412d    inet 172.16.90.117/24 brd 172.16.90.255 scope global dynamic noprefixroute wlp3s0       valid_lft 1186sec preferred_lft 1186sec    inet6 2a02:xxxx:xxxx:0:7e4b:266:xxxx:xxxx/64 scope global dynamic noprefixroute        valid_lft 2591866sec preferred_lft 604666sec    inet6 fe80::17fc:d894:xxxx:xxxx/64 scope link noprefixroute        valid_lft forever preferred_lft forever