Has anyone else noticed whether or not a vaild gre tunnel in 
/etc/ifconfig.gre0 will halt a netbsd system as it attempts to start sshd 
?

the problem config line was in sshd_config:

Listen 0.0.0.0:22

not listening to the gre0 help get the system booted, but it halted after 
about 10 minutes.

robin-david hammond