Telus Fibre IPv6 on Ubiquiti ER-X (Multiple subnets)

gistfile1.txt

set interfaces ethernet eth0 dhcpv6-pd prefix-only
set interfaces ethernet eth0 dhcpv6-pd rapid-commit enable
set interfaces ethernet eth0 dhcpv6-pd pd 0
set interfaces ethernet eth0 dhcpv6-pd pd 0 prefix-length 56

set interfaces ethernet eth0 dhcpv6-pd pd 0 interface eth1 prefix-id :1
set interfaces ethernet eth0 dhcpv6-pd pd 0 interface eth1 service slaac

set interfaces ethernet eth0 dhcpv6-pd pd 0 interface eth2 prefix-id :2
set interfaces ethernet eth0 dhcpv6-pd pd 0 interface eth2 service slaac

set interfaces ethernet eth0 dhcpv6-pd pd 0 interface eth3 prefix-id :3
set interfaces ethernet eth0 dhcpv6-pd pd 0 interface eth3 service slaac

set interfaces ethernet eth0 dhcpv6-pd pd 0 interface eth4 prefix-id :4
set interfaces ethernet eth0 dhcpv6-pd pd 0 interface eth4 service slaac
 
set interfaces ethernet eth0 ipv6 dup-addr-detect-transmits 1
set interfaces ethernet eth0 ipv6 router-advert managed-flag true
 
set interfaces ethernet eth1 ipv6 router-advert prefix ::/64
set interfaces ethernet eth2 ipv6 router-advert prefix ::/64
set interfaces ethernet eth3 ipv6 router-advert prefix ::/64
set interfaces ethernet eth4 ipv6 router-advert prefix ::/64

// show version
//
// Version:      v2.0.9-hotfix.1
// Build ID:     5371034
// Build on:     01/22/21 10:14
// Copyright:    2012-2020 Ubiquiti Networks, Inc.
// HW model:     EdgeRouter X 5-Port
// HW S/N:       -------------------
// Uptime:       13:39:56 up  1:33,  1 user,  load average: 2.15, 2.08, 2.09
// 
// show interfaces
//
// Codes: S - State, L - Link, u - Up, D - Down, A - Admin Down
// Interface    IP Address                        S/L  Description
// ---------    ----------                        ---  -----------
// eth0         X.X.X.X/22                         u/u  Internet
// eth1         172.X.X.X/24                       u/u  LAN 1
//              2001:X:X:X:X:X:X:X/64
// eth2         172.X.X.X/24                       u/u  LAN 2
//              2001:X:X:X:X:X:X:X/64
// eth3         172.X.X.X/24                       u/u  LAN 3
//              2001:X:X:X:X:X:X:X/64
// eth4         172.X.X.X/24                       u/D  Test LAN
//              2001:X:X:X:X:X:X:X/64
// lo           127.0.0.1/8                        u/u
//              ::1/128
//  switch0      -                                 u/u  Local

set interfaces ethernet eth0 dhcpv6-pd prefix-only

this saves the CPU