Networking isn't my strong suit, so this might be a stupid question. But what exactly is a hardware firewall? Is it the same thing as my Internet facing router blocking incoming packets which haven't been requested from "inside the home" network?
this post was submitted on 31 Jan 2026
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A hardware firewall generally indicates a standalone appliance that is dedicated to being a firewall. Not to be confused with a software firewall as you would see with UFW, or Windows Defender. Modern routers do possess some of the same tenets of a hardware firewall, but a dedicated hardware firewall usually gives a broader range of defenses such as IDS/IPS, filtering, etc.
I have a dedicated hardware firewall in the form of pFsense. The 'black box' in OP's picture is the hardware firewall.
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I've seen in this thread:
| Fewer Letters | More Letters |
|---|---|
| AP | WiFi Access Point |
| DNS | Domain Name Service/System |
| IP | Internet Protocol |
| IoT | Internet of Things for device controllers |
4 acronyms in this thread; the most compressed thread commented on today has 14 acronyms.
[Thread #47 for this comm, first seen 31st Jan 2026, 16:30] [FAQ] [Full list] [Contact] [Source code]
That looks exactly like the box I grabbed. Are you running your opnsense on the bare metal, or are you virtualizing it? My only regret for mine was not picking up more ram.
Iβm running on bare metal. I have a physical homelab behind. Canβt you add ram?
I could, if it wasnβt so damn expensive for 32gb
I can't imagine why you need 32gb for opnsense. I can run it on a single core and 1gb, unless I literally want every DNS blacklist loaded in which case 4gb
Iβm running a proxmox instance on mine, with opnsense in a vm and plex, Jellyfin pihole and my omada controller on lxc. 16gb is just enough for everything, but I like to future proof and buffer things, so it makes me a bit nervous utilizing 12 of that 16 gb and only leaving 4gb for proxmox.
In some places you can still get 32GB DDR4 for a kidney if youβre lucky.
OP, you may want to look into ntopng. I think opnsense has a ntopng plugin. I find it very useful for traffic analysis.
Will have a look, thanks!
Nice.
Running different SSIDs too?
I put all my IoT stuff on a dedicated 2.4-only network, VLANd it to the (pfsense) firewall which allows the VLAN trunk to be split into separate logical NICs that I apply different policies to, like no access to the internet, etc...
At the moment I only have one WiFi instance, not planning to separate yet but it could be a future upgrade since I have a few IoT devices.
Why crowdsec?
Personal preference, itβs what Iβve been using since I started my homelab and I think it works well enough.
Are you exposing things to the internet?
Yes
I have crowdsec running on opnsense to block attacks
Crowdsec is a pretty good package. It does blocking, but is geared more to being an IDS. Opnsense supports Suricata which is a more aggressive, and all encompassing IDS/IPS. I don't think opnsense supports it's cousin Snort.
I considered suricata but for now I think crowdsec works well enough, Iβll see later if I think suricata could be more useful
Cool, cool. I was just throwing it out there if you hadn't considered it. It's quite a powerful package.
Share some pictures and stats of you could. Do u see many probes?
You want pictures and stats of what?
Cats, if you have them, dogs if not.