In my example, 'curtin_userdata_amd64_generic_trusty_juju0' is a preseed file for a machine named juju0. You will need something similar for each of your machines, using their host names in the file names.
The interface file wget gets (in the preseed) is also specific to each machine. Each machine needs to get its own unmanged.cfg file (served from the maas server /var/www/html/<machine_name>.interfaces_d).
Your unmanaged.cfg file per machine should contain the interface configuration for the IP address you do not want Juju to know about (your 'SSH'/unmanaged interface?).
@rajesh-canoncial
In my example, 'curtin_ userdata_ amd64_generic_ trusty_ juju0' is a preseed file for a machine named juju0. You will need something similar for each of your machines, using their host names in the file names.
The interface file wget gets (in the preseed) is also specific to each machine. Each machine needs to get its own unmanged.cfg file (served from the maas server /var/www/ html/<machine_ name>.interface s_d).
Your unmanaged.cfg file per machine should contain the interface configuration for the IP address you do not want Juju to know about (your 'SSH'/unmanaged interface?).