Hi, No idea if this is the "Right" way to do it, but has been working for me for 12months or so now. [mtikadmin@MikroTik] /ipv6> export # mar/07/2023 11:51:27 by RouterOS 7.6 # software id = # /ipv6 dhcp-server option add code=23 name=v6dns value="'2404:9400:4176:XXXX::1'" /ipv6 pool add name=pool1 prefix=2404:9400:4176:XXXX::/64 prefix-length=64 /ipv6 address add address=::1 from-pool=pool1 interface=vlan12 /ipv6 dhcp-server add address-pool=pool1 dhcp-option=v6dns interface= vlan12 name=server1 /ipv6 firewall filter add action=accept chain=input comment=ICMP protocol=icmpv6 add action=accept chain=forward protocol=icmpv6 add action=accept chain=input comment="Established and Related" connection-state=established,related protocol=tcp add action=accept chain=forward connection-state=established,related protocol=tcp add action=accept chain=input comment="Allow DNS Replies" in-interface=ether1 protocol=udp src-port=53 add action=drop chain=input comment=Drop in-interface=ether1 add action=drop chain=forward in-interface=ether1 /ipv6 nd set [ find default=yes ] interface=ether1 mtu=1500 ra-lifetime=none reachable-time=5m add interface= vlan12 other-configuration=yes reachable-time=5m /ipv6 nd prefix default set preferred-lifetime=4h valid-lifetime=4h /ipv6 settings set accept-router-advertisements=yes max-neighbor-entries=8192 Andy -----Original Message----- From: Public <public-bounces@talk.mikrotik.com.au> On Behalf Of Christopher Hawker Sent: Tuesday, 7 March 2023 9:34 AM To: public@talk.mikrotik.com.au Subject: [MT-AU Public] Setting up IPv6 Hello all, I've been scratching my head and banging it against a brick wall for the last month, trying to get this sorted out. In our office, we are announcing a /48 v6 prefix to AAPT from our BGP router. We then have a NAT router for our internal VLANs. We wish to assign addresses to clients within our office. If I set static addresses all works ok so I know it's not a routing issue. We have 4 VLANs within our office to which we wish to allocate a /59 to each. Would anyone have any examples of configs or be able to point me in the right direction, to have our NAT router announce IP addresses to our clients? Thanks, CH. _______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au