Hi,
I've got a fixed IPv6 /56 subnet assigned by my ISP, with a 8 bit prefix this gives me (theoretically) 256 subnets. I have 4 interfaces on the LAN side on my ER:
- eth0
- eth0.15
- eth0.16
- eth0.32
To assign each of these interfaces an own IPv6 subnet I did this config:
ethernet eth7 {
address 10.100.0.100/24
description "Internet (PPPoE)"
duplex auto
pppoe 0 {
default-route auto
dhcpv6-pd {
pd 0 {
interface eth0 {
host-address ::0a00:0001
no-dns
prefix-id 0a
}
prefix-length 56
}
pd 1 {
interface eth0.15 {
host-address ::0a32:0001
no-dns
prefix-id 32
}
prefix-length 56
}
pd 2 {
interface eth0.16 {
host-address ::0a10:0001
no-dns
prefix-id 10
}
prefix-length 56
}
pd 3 {
interface eth0.32 {
host-address ::0a20:0001
no-dns
prefix-id 20
}
prefix-length 56
}
prefix-only
rapid-commit enable
}
....The issue is: Only one of these prefix delegations are working. In this config, the last subnet (eth0.32) will "get" the IPv6 subnet. As long as I just define one prefix delegation to a subnet, it works fine.
From my understanding each of my interfaces should get its /64 subnet with the assigned prefix. Did I make a mistake, or is this a bug? My configuration above will result in this:
root@router:~# show interfaces
Codes: S - State, L - Link, u - Up, D - Down, A - Admin Down
Interface IP Address S/L Description
--------- ---------- --- -----------
eth0 10.0.0.1/12 u/u Core network
eth0.15 10.50.0.1/22 u/u Guest-VLAN
eth0.16 10.16.0.1/24 u/u Webproxy Network
eth0.32 10.32.0.1/16 u/u Voice-VLAN
2003:x:xxx:xx20::a20:1/64
eth1 - u/D
eth2 192.168.1.1/24 u/D Admin default
eth3 - u/D
eth4 - u/D
eth5 - u/D
eth6 - u/D
eth7 10.100.0.100/24 u/u Internet (PPPoE)
lo 127.0.0.1/8 u/u
::1/128
pppoe0 xx.xxx.xxx.xxx u/u
2003:x:xxx:xxxx:2d62:c877:4f22:903/64