Backup to a remote NAS appliance.

I have 2 sites. The host site has backup exec backing up to a local NAS box. I also have a remote site connected via a VPN tunnel with another NAS device. Does any one have a senerio that will allow me to push a copy or do just a full backup on the weekend to the remote site. I have tried several ways but I can't get it done before everyone gets back to work on Monday.

Any thoughts on how to accomplish this would be great.

Thanks.