Hi Folks, Not sure if I'm doing something wrong here, but I'm having trouble getting prefix delegation to work the way I'd expect. On my old 877, it was fairly easy to do. Dialer0, i'd add ipv6 dhcp client pd ipv6-prefix rapid-commit and then the delegated prefix was available as ipv6-prefix. Then on each internal lan interface (or vlan, or whatever), I'd simply do: ipv6 address ipv6-prefix ::1:0:0:0:1/64 ipv6 enable ipv6 nd ra interval 60 and bingo, Neighbour Discovery was handing out IP's in the ::1:0:0:0:0/64 subnet (Or ::2:0:0:0:0/64 etc as defined for each interface) Trying to do that on the CRS isn't quite working right. it seems like to use the PD, I need to do something like this: /ipv6 address add from-pool=TID_PD interface=bridge-local address= ::1:0:0:0:1/64 But that results in this: 8 G 2001:8000:1000:3d00::1/64 TID_PD bridge-local yes I've played with a few virtual interfaces, and it simply assigns the subnets in ascending order - so the second one defined will be 3d01::, the next will be 3d02:: etc. Now it's not a HUGE issue, as my v6 delegation from TID isn't going to change, but it's more the principle of the thing ;) Is 'proper' defined PD usage possible on RouterOS? Thanks, Damien -- Damien Gardner Jnr VK2TDG. Dip EE. GradIEAust rendrag@rendrag.net - http://www.rendrag.net/ -- We rode on the winds of the rising storm, We ran to the sounds of thunder. We danced among the lightning bolts, and tore the world asunder