Allied Telesis AR Series Technical Manual page 54

Setting up and Configuring UTM Offload
The AR4050S manages the offload device and offloads traffic automatically.
Setting up the offload device
The offload device can be any physical computer or virtual machine (VM). To use the UTM Offload
feature, there must be a direct Ethernet connection from the forwarding device (AR4050S) to the
offload device. The offload device must be configured to PXE boot (network boot) from the
forwarding device.
Virtual For instructions on setting up a virtual machine as an offload device, see
machine
on VMware ESXi Server" on page
Physical If you want to set up a physical computer as an offload device, then the computer must:
computer

have a serial port, even if nothing is connected to that serial port.

have a direct Ethernet connection between itself and the AR4050S, i.e. from the Gigabit eth1 or
eth2 port on the AR4050S to an Ethernet port on the offload device. The Ethernet connection
must support a MTU of 1588 or higher.

be configured to network boot from the AR4050S. This will usually be done by changing the BIOS
settings on the offload device and enabling PXE boot.


Specifications
The offload device must have the following minimum specifications:
UTM Offload Device Specifications
Multi-core 64-bit x86 processors
■
i5 CPU with 4 cores and 2.3-2.8GHz clock speed
■
2GB of RAM
■
4GB of Flash/HDD
■
VMware ESXi Hypervisor 6.x 
■
(Note: VMware is the only supported hypervisor if UTM Offload is not run directly on the offload device.)
A network card (NIC). 
■
Supported models:
■
■
■
■
At least one non USB storage device
■
Storage devices: Devices that support AHCI mode.
■
■
C613-22104-00 REV B
PXE boot does not currently support IPv6, therefore the Ethernet interface used for off loading
is configured with IPv4.
The PC vendors website will have information about how to enable PXE boot. For example,
to enable PXE Boot for Intel Desktop Boards, see
Intel e1000
Intel e1000e
Intel igb
VMware vmxnet3
If using a SATA HDD, the SATA controller (which the SATA drive connects to) needs to support AHCI
56.
Advanced Network Protection
"Configuring UTM Offload
Intel Support.
Setting up UTM Offload
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