osmux: Make sure to always use the right dummy sending method

Make sure to re-use the right method for nat traversal. Found
by Roch while looking at traces.
1 file changed
tree: 509f832f5736a50798a962ba8b647248d21ec7ed
  1. debian/
  2. hlrsync/
  3. linux-kernel/
  4. openbsc/
  5. wireshark/
  6. README