Hello,
I am a Sales Engineer for PHD Virtual Backup. PHD offers a similar solution in regards to VMware backups. We have the same appliance type architecture, though our VBA is easier to install and supports multiple backup targets such as NFS, CIFS, virtual attached disk and cloud targets. The PHD VBA (virtual backup appliance) supports DHCP so network configuration is very simple and will allow for multiple NIC's in case you would like to backup over a private non-routable network. The restore capabilities are very robust in that you can restore an entire VM, rollback an existing VM to a previous point in time, instantly spin up a VM in backup storage (for backup verification as well as quickly get a critical VM up and running) and file level recovery. If this sounds like something you would be interested in there is a fully functional trial available on the website at http://www.phdvirtual.com/. Good luck in your search!