[SDBUG] OpenBSD - can't ifconfig faith0 interface?

[Kevin Stevens]

Progressing nicely on my firewall config.  However, I was working  
with IPv6 this evening, trying to setup faithd to handle internal v6  
Internet traffic.  There are man pages in OpenBSD 4.0 (stable) for  
both faithd and the faith interface, which say to just ifconfig  
create the interface.  However, that doesn't work, and running  
ifconfig -C doesn't show that it knows about the faith pseudo-device  
type.  Potentially related is that the net.inet6.ip6.keepfaith sysctl  
didn't exist in /etc/sysctl.conf, though when I added and enabled it  
the reporting on it works ok.

Didn't find anything helpful on google or in the OpenBSD FAQ.  Is  
this something I'll have to compile special kernel support for?  It  
seems odd that the man page would say it's built in already...

KeS