Where does rp_filter log to?

[John Biundo <johnbiundo@sbcglobal.net>]

Hi all,

I've enabled rp_filter (with echo 1 > 
/proc/sys/net/ipv4/conf/all/rp_filter).  I'm doing some testing of my 
iptables rules, and want to simulate sending some spoofed packets to 
make sure they're dropped properly with hping2.  When I try this, the 
packets seem to get dropped, as expected, but I can't find any evidence 
in a log file.  I was hoping to have a way to automate some testing by 
searching a log file for a message indicating the packet was dropped.  
Any clues as to where/how this is done would be appreciated.

Regards,
John