Managing the Device
R81.10.X Quantum Spark 1500, 1600, 1800, 1900, 2000 Appliances Locally Managed Administration Guide|80
To avoid fragmentation (which slows transmission), set the MTU
according to the smallest MTU of all the network devices between your
gateway and the packet destination
For static and DHCP mode, set MTU to 1500 or lower.
For PPPoE connections, set MTU to 1492 or lower.
Note - When the appliance is behind a modem that works as a
NAT device, the MTU value of the connection must be the same
as configured in the modem. If the modem has a PPPoE
connection, configure the MTU in the connection to 1492 or
lower.
n
MAC address clone
l
Use default MAC address - This Internet connection uses the
default MAC address of the selected physical port.
l
Override default MAC address - You can override the default
MAC address for this Internet connection. This is useful when the
appliance replaces another device and it is necessary to mimic its
MAC address.
n
Disable auto negotiation
If you select this option, you can configure the link speed and duplex for
this Internet connection.
Different values are available for different appliance models.
In the QoS Settings section, configure the applicable settings.
Configuration
Important:
n
This applies only to IPv4 Internet connections.
n
To apply these QoS settings, you must enable the QoS
Software Blade:
Go to the Home view > Overview section > Security
Dashboard page > in the QoS section, move the slider to the
right position (enabled green).
n
Enable QoS (download)
Enables and configures the restriction for the inbound traffic (download
on the internal networks behind the appliance).
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