Digi TransPort - Xot Settings

Advanced Network Settings descriptions
Digi TransPort User Guide 496
XOT settings
Default source IP address interface x,y
The values in these two text boxes specify the interface (None, PPP, ETH) and instance
number of that interface that IP address that XOT sockets should use instead of the interface
that the socket was created on.
Note Even when this parameter is not configured, the IP address from the interface on which
the socket was created will be used. The source address specified in this parameter will
only be used if it will cause the traffic to match an Eroute and therefore be sent using IPsec
or GRE.
NB of XOT listening sockets
The maximum number of XOT sockets available. This may be used to reduce the number of
XOT sockets in order to free up more general-purpose sockets for other purposes. The default
value of 0 enables the maximum number of XOT sockets available.
Maximum ACK time for XOT data
The maximum time allowance for a remote unit to acknowledge TCP data transmitted by a
unit’s socket. If this timer expires, the socket is aborted. The default value of 0 disables the
timer.
Note There is no requirement for the remote unit to acknowledge received data immediately,
therefore setting this parameter to too small a value is not recommended. Some stacks
delay sending TCP ACKs in order that they can be incorporated with data sent by the
application.
Do not deactivate outgoing XOT sockets when interface disconnects
When checked, this checkbox sets outgoing XOT sockets not to close when the interface they
are using disconnects.
Related CLI commands
Entity Instance Parameter Values Equivalent Web Parameter
sockopt n xot_ipent Valid interface type,
ETH, PPP
Default source IP address
interface x,y
sockopt n xot_ipadd Valid interface
number
Default source IP address
interface x,y
sockopt n xot_listens 0-2147483648 NB of XOT listening sockets
sockopt n xot_maxack 0-2147483648 Maximum ACK time for XOT data