I'm going to suggest a alternative configuration.
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Put your public ASL node on your VPS No radio interface needed.
Setup a private node at your house. Add AB, MB etc. Setup a full
time IAX connection between the 2 nodes.
On 11/17/19 7:43 PM, Mike Zingman -
Here is what I suspect (of course I could be wrong). USRP uses
UDP as its transport.
If you are using DVSM, you set the mobile client to talk to AB on
a single port. This setting in AB (where TX and RX ports are the
same) tells AB to use an enhanced protocol to talk to the client.
This enhancement is used to keep the NAT traversal path open to
the client. The trick is that AB will send keep alive packets
back to DVSM to tell the router/firewall that the NAT connection
should be maintained. As long as the keep alive packets are sent
often enough the router will maintain the connection.
If you are using ASL as your USRP client to AB, you are using two
ports (TX and RX). AB does not try to tell ASL to keep the
connection open (since ASL would not understand the keep alives).
So, if you are using ASL on a different machine than AB and there
is a NAT between them, you will have problems.
Any of the above make sense?