My goal is to backup my virtual machines on Host 1 to Host 2 using a different network to my public facing network.
On Host 1 I have 3 VMs on the vSwitch network which use a 100mb card.
I also have a separate gigabit NIC on Host 1 which is connected via a physical switch to Host 2.
This is how I configured the networking on Host 1.

On Host 2 I have the following config; one of the VM's is running vcenter and VEEAM.

I can't seem to find a way to have Host 2 backup VM's from Host 1 using the 1000 mb/s network.
I understand that only part of this question is VEEAM related; however I also want some confirmation that I have configured my networking correctly within vSphere.
What am I missing?