DIR-825 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router
with 3G/LTE Support and USB Port
User Manual
Configuring via Web-based Interface
Parameter Description
DPD delay
A time period (in seconds) between attempts to check the status of a
remote host. By default, the value 5 is specified.
The maximum
number of failures
DPD
A number of DPD messages that were sent to check the status of a
remote host and left unanswered. By default, the value 3 is specified.
If a remote host does not answer the specified number of messages,
the router breaks down the tunnel connection, removes the encryption
keys, and tries to activate the connection.
TCP MSS
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.
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.
TCP MSS Value
The maximum size (in bytes) of a non-fragmented packet. The field is
available for editing when the Manual value is selected from the TCP
MSS drop-down list.
Allow traffic between
tunneled networks
Move the switch to the right to allow data exchange between subnets
with which IPsec tunnels have been created.
Figure 157. The page for adding an IPsec tunnel. The First Phase / The Second Phase sections.
Parameter Description
The First Phase
First phase
encryption algorithm
Select encryption algorithm from the drop-down list.
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