Stephen Fisher wrote:
On Fri, Feb 04, 2011 at 03:03:04PM +1100, Martin Visser wrote:
One other default I think we should change is around TCP checksums. It
seems so many people are now using NICs with various chimneys and
offload processing that we get a lot of "false positives" from new
users in the forums and the mailing list.
We turned off TCP and UDP checksum verification a few years ago:
http://anonsvn.wireshark.org/viewvc?view=rev&revision=24778
(based on the date, this probably first showed up in version 1.2)
Keep in mind that if a user had _ever_ saved his/her preferences before
that change was made, they now have TCP checksums turned on... Until
they manually turn them off.
But, starting in 1.4, when you save/apply the preferences only those
which are NOT set to the default value (for that preference) are written
to the preferences file (actually they are all written to the file but
those whose value is the default are commented out). That means any
preference defaults that we change now will actually take effect for the
vast majority of users--everyone except those who had changed that
particular preference.
