[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: L2 broadcast and NAT state
On Friday, Mar 28, 2003, at 02:09 US/Pacific, Daniel Hartmeier wrote:
The frame arrives at $ext_if, and enters if_ethersubr.c ether_input().
Since the destination mac address is ff:ff:ff:ff:ff:ff, the mbuf gets
M_BCAST flag attached. Due to this flag, the destination mac address is
not compared to the local interfaces' mac addresses, but passed on
anyway. The mbuf gets passed to ipv4_input(), which calls pf_test() and
And this is where your packet gets dropped, due to the M_BCAST flag:
You should see the counter increase in netstat -p ip output:
Yep, this is it. Thanks for tracking this down.
If you're running a recent snapshot, you could try a patch, as soon as
I'll be glad to.