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ipnfw - Online in the Cloud

Run ipnfw in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command ipnfw that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator



ipnfw - bundle route computation task for the IPN scheme




ipnfw is a background "daemon" task that pops bundles from the queue of bundle destined
for IPN-scheme endpoints, computes proximate destinations for those bundles, and appends
those bundles to the appropriate queues of bundles pending transmission to those computed
proximate destinations.

For each possible proximate destination (that is, neighboring node) there is a separate
queue for each possible level of bundle priority: 0, 1, 2. Each outbound bundle is
appended to the queue matching the bundle's designated priority.

Proximate destination computation is affected by static and default routes as configured
by ipnadmin(1) and by contact graphs as managed by ionadmin(1) and rfxclock(1).

ipnfw is spawned automatically by bpadmin in response to the 's' (START) command that
starts operation of Bundle Protocol on the local ION node, and it is terminated by bpadmin
in response to an 'x' (STOP) command. ipnfw can also be spawned and terminated in
response to START and STOP commands that pertain specifically to the IPN scheme.


"0" ipnfw terminated, for reasons noted in the ion.log log file. If this termination was
not commanded, investigate and solve the problem identified in the log file and use
bpadmin to restart ipnfw.

"1" ipnfw could not commence operations, for reasons noted in the ion.log log file.
Investigate and solve the problem identified in the log file, then use bpadmin to
restart ipnfw.

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