CMTS ARRIS/NORTEL 1000 doesn't save ip config

Hello everyone,

I configured the IP and contact information, using this commands under box subsystem

$ box
contact "admin@tomtel.ru"
name "ARRIS-9"
location "TOMSK,TOMTEL"
$ ip-level
config-ip-address 213.210.81.13
config-ip-subnet 255.255.255.192
config-ip-gateway 213.210.81.1

After configuring it I just rebooted the cmts, and it preserves the contact info but no the ip config.

Anyone nows how to save this configuration??

Thanks in advance...