F5 Backup iAPP prefered IP Address

We run Viprions with vCMP quests. I'd like to use the Backup iAPP to store my configs to a sftp server. Our firewall team wants to know which f5 IP's to allow to the sftp box.

 

Is the f5 Guest management IP the default IP to be used for backups? Can the iAPP be configured to use another IP?