On Mon, Jul 20, 2020 at 02:06:37AM -0500, Charlie Burnett wrote:
> Hi,
> I've set up a good deal of openbsd firewalls in a professional environment
> before with little to no issue. I'm trying to set one up for me personally
> though, and am having some bizarre issues, with no clue where to begin
> trying to fix them. This is on an APU unit from PC Engines. I've managed to
> figure out a couple things when trying to debug this:
> 1. I cannot connect to the internet properly unless only em0 (which is the
> ethernet port I have connected to the external network) has a hostname
> file- I have to either add back the hostname files after boot and run
> /etc/netsetup or manually set up the internal network ports through
> ifconfig.
> 2. Even once the box is connected properly to the network, its' seemingly
> unable to assign leases to other clients, attempting to connect to it
> through another OpenBSD machine results in it timing out while getting a
> lease.
> 3. Using the same exact config, I ran it behind a standard proprietary
> router (linksys) that connects fine externally. Using that, the box
> functions as expected.
> 4. Using an openwrt router I get similar errors.
> 5. I'm using both config that I've used on external networks as well as
> subnetworks on a corporate network that worked, and the default config from
> the setting up a router page for a sanity check.
> 6. I assumed it was DHCP, but nonetheless as a sanity check I had pf pass
> through anything and everything, worked internally as well as externally.
> I'm at a complete loss- seeing as it occurs on openwrt I assume that its'
> probably because of however the hell my landlord set up the network, but
> anyone remotely have an idea how to begin debugging this? I don't like
> particularly having a proprietary router running especially without a
> firewall I trust.
> Best,
> Charlie
As has been posted, without config files nor ifconfig outputs it's hard
to figure out what might be going wrong. Are you by any chance serving
DHCP internally on the same network segment (e.g. 192.168.0.0/24) that
you get from your landlord?
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