My own configure file (for Mac OS).
Make the waiting time for attaching gdb an option.
Make not-detaching server mode an option.
Add a library to retrieve the host source addresses.
Add a C++ abstraction for managing Addresses.
Addr infrastructure for having flows.

A flow is defined by an address source and an address destination.
Migrate flow related fields in Flow objects.
Import my logger.
Add flow id and flags to the protocol.
Only make generic IPV6 hybrid sockets.

We ignore the desired IP because we will explicitly specify
the outgoing address.
Add function to send packets with desired IP address.
Track the last couple of (src, dst) to send message (server).
Ignore empty messages at transport layer.
Implement probing functions.
Reply to probes when server.
Get all possible flows, probe them and select the best.
Ignore MTUDISC related settings.

Probably can't be used on hybrid sockets.
Add debug log messages.
Add support to convert v4 to v6 addresses (v4 mapped).
Fix: we must use v4 mapped addresses.