I have a strange <> with some nating im doing in a 1072 CCR . Im bandwidth testing between a virtual machine and a physical server . Virtual machine sits in a hypervisor connected to a Dell 100Gbit switch .
Physical server has internet access through the CCR with NAT . Also the CCR is connected to the Dell Switch with 2x 10Gbit ports.
So , with iperf and using the public ip of the physical server im bandwidth testing between the VM and the server and i get max 2-2.5 Gbits/second . CCR cpu is at 0% . I have enable end to end jumbo frames 9216 to all physical ports and VLANs needed.
If i made a test within the hypervisor between 2 VMs in the same VLAN without NAT then i get around 20-30Gbit . When i go behind the CCR with NAT then i get 2-2.5Gbit .