Commit Graph

6 Commits

Author SHA1 Message Date
Bill Somerville
dd631699da
Add the Tx message to the UDP Status(1) message
Thanks to Morgan (sri no other attribution given) for the initial
contribution this change is based on.
2020-12-21 01:31:57 +00:00
Bill Somerville
ced3b523ea
Add network interface selection combo box widget to message_aggregator 2020-11-10 20:12:35 +00:00
Bill Somerville
7b54428a60
Extend UDP MessageServer client mapping key with the host address
The UDP Example reference applications  now work correctly with WSJT-X
instances with duplicate --rig-name= command line arguments so long as
duplicate instances are run on unique hosts.
2020-11-10 20:12:33 +00:00
Bill Somerville
662ed0fa7a
Network interface selection for outgoing UDP multicast datagrams
Default  selection  is  the  loop-back interface.  Users  who  require
interoperation  between  WSJT-X   instances  cooperating  applications
running on different hosts should  select a suitable network interface
and  carefully choose  a multicast  group address,  and TTL,  that has
minimal scope covering the necessary  network(s). Using 224.0.0.1 is a
reasonable    strategy    if   all    hosts    are    on   the    same
subnet. Administratively  scoped multicast group addresses  like those
within 239.255.0.0/16  can cover larger  boundaries, but care  must be
taken if the local subnet has access to a multicast enabled router.

The  IPv4  broadcast  address  (255.255.255.255) may  be  used  as  an
alternative  to multicast  UDP, but  note that  WSJT-X will  only send
broadcast UDP datagrams  on the loop-back interface,  so all recipient
applications must be running on the same host system.

The reference UDP Message protocol  applications are being extended to
be configurable  with a list of  interfaces to join a  multicast group
address on. By default they will only join on the loop-back interface,
which is also  recommended for any applications designed  to take part
in the WSJT-X  UDP Message Protocol. This allows full  user control of
the  scope of  multicast  group membership  with  a very  conservative
default  mode  that will  work  with  all interoperating  applications
running on the same host system.
2020-11-10 20:12:33 +00:00
phl0
2a31d12d39
Adapt brach to changes proposed by G4WJS 2020-06-26 23:46:08 +01:00
sirhc808
dd53e8d348 incorporate code review feedback 2019-07-02 13:00:32 -05:00