packets with syn/fin vs pf_norm.c

[Darren Reed]

In some mail from Richard Coleman, sie said:
> 1. I thought that T/TCP was being removed from FreeBSD (already happened?).
> 2. It's trivial to predict Theo's response to this.
> 3. Since T/TCP is rare, there is little motivation to alter scrub to 
> function differently than OpenBSD with respect to these packets.  If 
> someone really needs this, there are plenty of alternatives.

I didn't know about (1) but I'd agree with (2) and (3).

> But more importantly, the original question has been lost.  The original 
> question was what should the various firewalls do when the kernel has 
> been compiled with TCP_DROP_SYNFIN.  Regardless of whether those packets 
> are valid or not, a person may have reason to compile this feature into 
> the kernel.  So, should the firewalls acts differently if this kernel 
> option is used?

IMHO, No.

Darren