DPM 2010 and Juniper SRX Firewall

SharePoint 2010 is all the rage (still) and products are finally maturing enough where you don't need best of breed to get everything done. We recent started rolling Microsoft's Data Protection Manager (DPM) 2010 to do our SharePoint 2010 back ups. DPM 2007 recovery process through a "recovery farm" is a thing of the past with DPM 2010 so the timing was right. So we choose DPM 2010 as our backup/recovery strategy and implemented it fine on the intranet but then....yes we need SharePoint 2010 on the extranet so DPM 2010 followed and so did the firewall.......