Provided by: ion_3.2.1+dfsg-1.1_amd64
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.
No configuration files are needed.
No environment variables apply.
The following diagnostics may be issued to the ion.log log file: ipnfw can't attach to BP. bpadmin has not yet initialized BP operations. ipnfw can't load routing database. ipnadmin has not yet initialized the IPN scheme. Can't create lists for route computation. An unrecoverable database error was encountered. ipnfw terminates. 'ipn' scheme is unknown. The IPN scheme was not added when bpadmin initialized BP operations. Use bpadmin to add and start the scheme. Can't take forwarder semaphore. ION system error. ipnfw terminates. Can't exclude sender from routes. An unrecoverable database error was encountered. ipnfw terminates. Can't enqueue bundle. An unrecoverable database error was encountered. ipnfw terminates.
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