[netperf-talk] setting SO_DONTROUTE for UDP tests by default?

[Rick Jones]

Well, I went ahead and put-in some code...  the current top-of-trunk will now 
default to setting SO_DONTROUTE on a unidirectional UDP test - classic 
"nettest_bsd.c" UDP_STREAM as well as a unidirectional UDP xmit or recv omni test.

Any other protocol, or a request response test, will default to *not* setting 
SO_DONTROUTE.  IE behavior remains unchanged from before.

There is a test-specific -R option that if given an argument of 0 will disallow 
routing regardless of test or protocol, and if given a non-zero argument will 
allow routing regardless of test.

So, to have a non-local UDP_STREAM test, one must now add a test-specific "-R 1" 
option. It will remain that way unless there is sufficient squawking to get it 
reverted :)  If it doesn't get reverted any time soon, I'll go ahead and 
document it further.

happy benchmarking,

rick jones