ips.evil counter fails to incriment

Joshua Coombs kurlon at x386.net
Wed Apr 2 09:25:21 PST 2003

>Submitter-Id:	current-users
>Originator: 	Joshua Coombs	
>Organization:	x386.net
>Confidential:	no 
>Synopsis:	ips.evil counter fails to incriment
>Severity:	serious
>Priority:	medium
>Category:	standards	
>Class:		sw-bug
>Release:	FreeBSD 4.7-RELEASE-p10 i386
System: FreeBSD E-Machine.x386.net 4.7-RELEASE-p10 FreeBSD 4.7-RELEASE-p10 #0: Tue Apr 1 18:52:17 EST 2003 root at E-Machine.x386.net:/usr/obj/usr/src/sys/GENERIC i386

>Description:  After applying ftp://ftp.jurai.net/users/winter/patches/rfc3514-stable.patch and rebuilding world/kernel, rfc 3514 support appears to function, however the provided interface for tracking recieved 'evil' packets does not appear to work.
apply the patch
rebuild world/kernel
enable rfc3514 support
  sysctl -w  net.inet.ip.rfc3514=1
verify hear_no_evil and speak_no_evil are disabled
  sysctl -w net.inet.ip.hear_no_evil=0
  sysctl -w net.inet.ip.speak_no_evil=0
generate 'evil' packets
  ping -c 10 -E localhost
see if the system noticed the 'evil' packets
  netstat -s | grep -i evil
Currently the counter stays at 0 although it responds to 'evil' pings.

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