[OpenIndiana-discuss] weird packet garbling problem

[Jim Klimov]

As an alternate thought, what OSes and NICs are running on your router,
VPN box (and what sort of VPN is that?), and on those boxes where you
don't have the problem?

I might guess that if the problem happens with Solaris/OI boxes and
does not, for example, happen to Linux and Windows, this might mean
that your network gear mangles packets in some way (why not - VPN and
NAT and even software VLAN might do strange wonders), and while other
OSes might be less picky about packet consistency mismatches, the IP
engine in Solaris (or IPFilter) might be more picky and thus fail...

Or maybe all of the above and the hardware offload (which of course is
not a feature of only bge). From those threads I linked, I incurred
that Solaris 10+ should be (have been?) able to detect and disable
or collaborate with hardware features, at least on some NICs. It may
be that for example e1000g won't show this behavior (being detected
by the engine and either degraded to no offload, or worked-around
otherwise), and bge's - not so for some reason... Again, here I can
only speculate, and there are more knowledgeable experts on the list.

Good luck,
//Jim Klimov