I have seen this on two machines now. At first I ignored it, but now I am
wondering. Suddently I will spot an extraordinary amount of network traffic
and on tcpdump:ing discover my machine is spewing out pfsync broadcasts.
On both machines pfsync was NOT enabled, nor had it ever been. pf_enable="YES"
and pf_log="YES" was in rc.conf, but nothing about pfsync.
I can squish the broadcasts easily enough with 'ifconfig pfsync0 -syncdev
down', but I am somewhat concerned over it being mysteriously enabled.
One of these machines is a 6.1, the other a 6.0 (though it may have been a 5.x
at the time it happened, not sure). pf is being used actively without
any 'no-sync' options present; but it is my understanding that no pfsync
traffic should be generated until pfsync is explicitly turned on with
Does anyone have an explanation for this? I am quite sure I have never enabled
pfsync in rc.conf, nor have I ever ran any ifconfig commands that might
enable it. I am not running any kind of meta-firewall scripts or anything
like that; there should be nothing but the standard FreeBSD rc scripts
modifying network interfaces with ifconfig.
The second machine I saw this on has only been running for a few days, so I am
even more sure I haven't done so on this one than on the other one.
/ Peter Schuller, InfiDyne Technologies HB
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