Having recently assisted a local business with their network perimeter refresh, I found myself deep in the evaluation of two fundamentally different paths: the software-centric approach using a platform like Ubiquiti's EdgeRouter series (with various add-ons for security), versus a purpose-built Next-Generation Firewall appliance from vendors like Fortinet, Palo Alto, or even a smaller Untangle box. The core dilemma for a small business isn't just feature parity, but the total cost of ownership, operational complexity, and the actual security efficacy achieved.
The EdgeRouter proposition is compelling on paper. You start with a relatively low-cost hardware platform, for example, an EdgeRouter 4. Its native capabilities include stateful firewall, VPN, and basic routing. To approach NGFW functionality, you must layer on additional services. The common path involves:
* Implementing `suricata` or `snort` in IPS mode via command line or a custom script.
* Setting up DNS-based filtering (e.g., `pihole` in a container or on a separate VM, with the ER acting as the DHCP server pointing to it).
* Configuring complex `iptables`/`nftables` rules for application identification (a crude form of App-ID).
* Using `vtysh` or custom logging to an external SIEM for visibility.
A sample snippet for enabling suricata on the WAN interface might look like:
```
set system offload ipv4 forwarding disable
set system offload ipv4 pppoe disable
set system offload ipv4 vlan disable
configure
set service suricata ruleset-protocols tcp
set service suricata ruleset-protocols udp
set service suricata ruleset-protocols icmp
set service suricata interface eth0
commit
```
This immediately highlights the first trade-off: you are now responsible for the performance tuning, rule updates, and log aggregation of these disparate components. The "throughput reality vs datasheet" becomes acutely personal, as running deep packet inspection on a 1 Gbps link can cripple the ER4's CPU without careful rule set management.
Conversely, a true NGFW appliance consolidates these functions into a single, vendor-integrated stack. The App-ID, IPS, SSL inspection, and web filtering are designed to work in concert, with a unified policy model (e.g., one rule that allows "Salesforce" for "Marketing" group, blocks malware, and logs violations). The management overhead shifts from integration and maintenance to primarily policy design. However, the upfront cost is higher, and you are often locked into annual subscription fees for signature updates and support, which constitutes a recurring operational expense.
For a small business, the critical question becomes one of resource allocation. Do they possess the in-house technical curiosity and time to become effective system integrators and security operators of a bespoke EdgeRouter setup? Or is the premium for the integrated NGFW justified by the reduced operational risk, centralized support, and faster time-to-value? My observation is that the tipping point often occurs when the business requires reliable, deep SSL inspection, or when compliance frameworks demand auditable, application-level policy enforcement—areas where the integrated reporting and guaranteed interoperability of an NGFW typically outweigh the initial capital savings of the DIY approach.
testing all the things
throughput first
I run infrastructure for a 35-person agency, with a mix of remote users and a small office. We previously had an EdgeRouter Lite with add-ons, but I replaced it with a FortiGate 60F about two years ago.
My breakdown for a small business:
1. **Actual NGFW features:** The difference is the integration. On an EdgeRouter, Suricata is a separate process you manage; a policy violation just logs. On our FortiGate, a blocked threat in the IPS kills the connection *and* ties the event to the user/IP in a single log. The application control ("this is Zoom") actually works without constant list upkeep.
2. **Total cost over 3 years:** EdgeRouter 4 is ~$200. A FortiGate 60F is ~$600 plus ~$400/year for UTM subscriptions. The real cost is your time. I spent hours a month tuning Suricata and DNS filters. With the FortiGate, I maybe touch it quarterly. The paid support ticket I used was resolved in 4 hours.
3. **VPN user experience:** We have 15 remote staff. The IPsec/OpenVPN setup on the EdgeRouter worked, but clients had quirks. FortiGate's free FortiClient VPN client is trivial for non-tech users; they click a link and connect. SSL-VPN throughput for us is a solid 250 Mbps.
4. **When the EdgeRouter wins:** It's perfect for a simple, static network needing basic firewalling and site-to-site VPNs. If your "security" need is just VLAN isolation and a firewall rule to block inbound traffic, save the money. The moment you think "I wish this could block malware" or "I need to limit Spotify," the add-on path becomes a part-time job.
I'd recommend the true NGFW appliance for any business that handles client data or has more than a handful of non-technical employees. If the budget is extremely tight and you have a network-savvy person on staff, the EdgeRouter can be a stopgap. Tell us your exact user count and if you have any compliance requirements (like HIPAA).
You've nailed the core problem right at the start: it's a total cost of ownership trap, and you're seeing it correctly. That "compelling on paper" argument falls apart the moment you have to maintain it. Layering suricata, custom iptables for app identification, and a separate DNS filter creates a fragile house of cards.
I've been down that road for a small client years back. The hidden cost isn't just your tuning hours, it's the forensic cost when something goes wrong. Trying to correlate a Suricata alert in one log, a DNS query in another, and an iptables drop in a third to figure out if an incident actually happened is a nightmare. A real NGFW gives you a unified event log that ties the user, application, and threat into one entry. For a business, that's the difference between containing a problem in minutes versus spending a whole day on log archaeology.
The operational complexity becomes a liability. Who manages it when you're on vacation? Can the office manager reboot it and understand the basic status? The appliance model, for all its licensing cost, bundles everything into a single support contract and a unified interface. For a small business without a dedicated network guy, that's often worth the subscription fee alone. They're buying a supported product, not a DIY project.
That phrase "compelling on paper" is doing a lot of heavy lifting. The moment you start layering services, you're not building a security platform, you're assembling a Rube Goldberg machine that fails silently.
You mention setting up DNS filtering on a separate VM or container. Now your firewall's security posture depends on the uptime and config of another system you're also responsible for patching and monitoring. The EdgeRouter itself has no idea if that Pi-hole container crashed an hour ago. A real appliance's features are baked in and monitored as a single unit.
The total cost isn't just your billable hours to set it up. It's the ongoing mental overhead of being the only person who understands the custom glue code holding your "NGFW" together. When you get a call at 2 AM, do you want to be grepping through three different log formats?
null
Your cost breakdown is spot on, but that subscription model is the real devil in the details. Sure, it's ~$400 a year now. But what's the year four price? Year seven? I've seen vendors hike those UTM fees 20% once you're locked into their hardware.
You're paying for convenience, absolutely. But you're also paying for the privilege of losing all your NGFW features if you ever decide to stop the subscription payments. At least with the Frankenstein setup, the pieces you built keep working, silently failing or not.
But what about the edge case?
Yeah, the "compelling on paper" part is where I got stuck on my own project last month. You listed the exact steps I was trying to follow! I was setting up suricata and trying to get the logs into a dashboard, and it just felt... brittle. Like, if I messed up one iptables rule, was I just opening a hole?
But I'm curious, since you mentioned both paths - for a small business with maybe one person like me managing it part-time, is the real blocker the initial setup or the day-to-day monitoring? Like, once you have all those pieces running, is it manageable or does it become a full-time job just keeping the logs in check?
rookie
Yeah, the "compelling on paper" part is so true. I was looking at a similar setup for a friend's shop, and that exact list of steps is where I got overwhelmed. It seemed fun to build at first, but then I realized I'd be the only one who could fix it.
My big worry was the complexity hiding in plain sight. Like, if the DNS filter in the container fails, does the network just quietly stop blocking things? That seems risky for a business that can't afford downtime.
For someone new like me, is the main appeal of the EdgeRouter path just the lower upfront cost, or is there something else I'm missing?