[Swan] libreswan 3.9+klips not listen on multiple secondary address

[csszep]

Hello!

I'm migrating from openswan to libreswan and i have a host with
multiple interfaces and secondary address.

With openswan (2.6.28) the following line works:

interfaces="ipsec0=eth5:0 ipsec1=eth4:0 ipsec2=eth3:0

Pluto listens on secondary address on these interfaces

Libreswan do nothing:

2014-07-16T14:42:18+02:00 ngm-fw1 pluto[21053]: Using KLIPS IPsec
interface code on 2.6.32-2-generic-zorp34
2014-07-16T14:42:18+02:00 ngm-fw1 pluto[21053]: listening for IKE messages
2014-07-16T14:42:18+02:00 ngm-fw1 pluto[21053]: no public interfaces found

Any hint how to listen a multiple specific alias interface or
secondary address with klips+libreswan?

Thx
csszep