Kernel panic on dup-to, to localhost

[Johan Allard]

Hi there,




ifconfig lo1 create
ifconfig lo1 inet 1.1.12.1 netmask 255.255.255.0



pfctl -e
pfctl -f /etc/pf.conf

I just managed to get a kernel dump on a basic clean installed OpenBSD 4.0 with the following settings: echo "pass in on ne3 dup-to (lo1 1.1.12.1) inet all keep state" > / etc/pf.conf and the first packet coming in on ne3 will cause a kernel dump, see attached screenshot.

Picture 8.png
Description: application/applefile

any idea why this caused this panic?

Cheers

//johan

I was trying to create a firewall with snort listening on lo1 and copying the packets I want it to inspect to lo1, no external promiscuos listeners or anything.