[FreeBSD 11 Wishlist] Replacing an OpenBSD Firewall

[Mark Felder]

After finding today that some of my intermittent home network problems
are likely due to OpenBSD being unable to keep time* on my PC Engines
APU4 firewall I am attempting yet again to run FreeBSD in this role.

Here are my pain points that made me go with OpenBSD for so long:

1) No IPSEC in GENERIC
2) if_stf not having 6rd support (paging hrs@)
3) pf issues: ipv6 checksums, fragments
4) pf syntax (ok, this is really an "I wish...")

I noticed net/stf-6rd-kmod now has a patch for FreeBSD 10 so I grabbed
the diff and built an IPSEC kernel with this patch applied. I'm now
mostly up and running except for the fact that I have no idea how to
configure stf for 6rd. There don't seem to be any docs/examples
anywhere. Unfortunately the man page edits in the diff don't give me any
details. I'd love to see a simple example because I'm completely lost
right now.

In conclusion: 
 - Let's get IPSEC into GENERIC or make it accessible for users via pkg.
 It will need to receive the same treatment as GENERIC's freebsd-update
 patches.
 - Can we please get 6rd support in head? I understand these shims have
 lost a lot of interest/momentum but native IPv6 isn't coming soon for
 most people.
 - Glad to see pf patches flowing in: ipv6, checksum, vnet, etc. Thanks
 everyone!


I will say I'm completely baffled by one thing though: the concept of
having rtadvd in base, but no dhcpd in base. That doesn't make any sense
to me. Shouldn't rtadvd be moved to ports?



*For those curious, OpenBSD falls behind several seconds per minute and
sometimes jumps hundreds behind. It's not a hardware issue as FreeBSD
runs fine. Changing time counters in OpenBSD didn't work. This probably
started around the time I upgraded to OpenBSD 5.6, but I'm not sure.