D-Link DWR-921 User Manual page 154

DWR-921 4G LTE Router
Configuring via Web-based Interface
User Manual
Parameter Description
Maximum Segment Size of a TCP packet. This parameter influences
the size of a TCP packet which will be sent from a remote host to the
router.
TCP MSS
If the Manual value is selected, you can specify the parameter in the
TCP MSS Value field.
If the Path MTU discovery value is selected, the parameter will be
configured automatically.
The maximum size (in bytes) of a non-fragmented packet. The field is
TCP MSS Value
available for editing when the Manual value is selected from the TCP
MSS drop-down list.
Allow traffic between
Move the switch to the right to allow data exchange between subnets
tunneled networks
with which IPsec tunnels have been created.
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