Networking FAQ: VMM internet access

Hi!

https://www.openbsd.org/faq/faq6.html#VMMnet gives 4 options to give
network access to guests, the funny thing is only option 1 worked for
me. I'd like to start with option 4:

mazocomp# echo 'dhcp' > /etc/hostname.vether0
mazocomp# sh /etc/netstart vether0
vether0: no lease .......... sleeping
mazocomp#

Ok, didn't work for me (but my device is Ethernet-based).

The next is option 2. After setting net.inet.ip.forwarding to 1 and
adding to /etc/pf.conf:
match out on egress from 100.64.0.0/10 to any nat-to (egress)
and reloading ruleset, my VMs started with local interfaces have no
internet access...

Option 3 didn't work too (same reason as for option 2?) :/

The most funny thing is that local connections between VMs work, I
only don't have access to internet. WHY???