8.1: IPFILTER (ipf) ipmon not logging?

[Pyun YongHyeon]

On Sat, Jul 24, 2010 at 08:21:56PM +0300, Lasse K H wrote:
> On Sat, Jul 24, 2010 at 03:25:00PM +0300, Lasse K H wrote:
> > Hello,
> > I can't get ipmon(8) working with FreeBSD 8.1.
> > It does not log anything with my Ultra 10.
> > The same setup works fine with FreeBSD 6.4.
> > How to solve this problem? Thank you.
> 
> ifconfig hme0 -txcsum -rxcsum
> did fix the problem.
> 

ipfilter has a bug in RX checksum offloading handling on FreeBSD.
See PR/106438 and possible patch in the PR.
You can switch to pf(4) which has no such a bug.