Tips for setting up home network at your own lab
Tips for setting up home network at your own lab
Hello everyone, I’m getting my first home lab and need some guidance on best practices and feedback on my networking design. Your attached diagram gives a good picture of what I’m planning. I plan to keep my ISP router/modem as the central point for Wi-Fi coverage throughout the house. Since many family devices already use it, I don’t want to disrupt that setup. What I’m aiming for is connecting my own router to the ISP’s device so it remains active for the rest of the family even if something fails in the lab.
I’m considering using a mini PC—probably needing a network card—to run OPNSense and manage the lab remotely via VPN. I’d also like to connect home devices (laptops, phones, workstation) to the lab network through a dedicated access point, such as a Ruckus R720. The current setup has a wired link between my work PC and the ISP router in separate rooms, with the server in another area. I’m not planning extra Ethernet cables between rooms and hope to stick with what I have.
I’m thinking of placing the second router in the ISP’s DMZ and using it to handle firewall rules, VPN access, and other security layers. This could help isolate traffic and improve stability. Multiple VLANs would add an extra layer of security and organization. Your thoughts on this approach sound reasonable, but I want to make sure I’m not running into any major issues—especially regarding double NAT and potential performance impacts. Any advice or alternative ideas would be greatly appreciated! Thank you in advance.
This network design follows a similar strategy to yours but with reduced connections between segments, aligning with POLP guidelines and solid architecture principles. It's important to recognize that both the ISP and OPNSense act as single points of failure; without extra hardware, addressing this would be challenging. If remote authentication is needed, an AAA Server should exist in the plan, otherwise any setup enabling remote access could be vulnerable. Feel free to ask if you have more questions!
To gain access, you’d need to exploit the setup where your phone and laptop act as a central hub for attackers. This undermines the OPNSense’s role since it’s meant to be the sole entry and exit point. The route outlined only includes ISP security and limited R720 protection—both would fail if an attacker knows they can bypass your firewall.
You asked for a thorough review of this approach, and I truly appreciate your caution. As someone just starting with networking, I realize there might be some misunderstandings, so please confirm if my explanation aligns correctly. I'm eager to learn but want to ensure safety given the potential risks involved.
Regarding the ISP router and OPNSense device, both can indeed become single points of failure. Adding extra hardware could help, but it may also increase complexity or cost depending on your needs.
Remote authentication usually refers to verifying identities remotely, often for VPN connections. This doesn’t necessarily mean remote access, but rather secure login methods. You mentioned software like WireGuard or Tailscale for home lab setups, which can provide strong security and manage access from anywhere.
The AAA server term isn’t familiar to me, but it likely relates to authentication services. I’m considering running such tools on a home machine and combining them with multi-factor authentication for extra protection.
I hadn’t thought about the pineapple device—seems like an unusual threat worth noting. The vulnerability you mentioned was something I hadn’t fully considered. I hope we can refine my goals together:
1. I use personal devices for both work and private browsing. For safety, I’ll restrict these to your home Wi-Fi when connected, avoiding direct links to the lab network.
2. Since my ISP router lacks VLAN support, I plan to use a dedicated access point in the lab and set up rules so only lab devices can communicate there.
3. Your solution seems different from what I expected—my devices won’t connect to lab equipment via Wi-Fi anymore. Instead, they’ll likely use wired connections through the managed switch. This could simplify management but requires careful planning.
I’m still unsure about how this setup would work in practice, especially with the potential for bypassing security measures. Could you clarify more about the VPN and authentication methods? Also, I’d like to know if running tools like WireGuard or Tailscale on a home machine is feasible without extra hardware. Thanks again for your guidance!
It doesn’t have to be bothersome to eliminate the problem of SPOF (Single Points of Failure). We can tackle this issue with something straightforward like adding a small "mini-pc," as you suggested. This would give us two connections from the 7250 instead of one, and one would serve as the main gateway while the other would act as a backup using VRRP (Virtual Route Redundancy Protocol). If the first machine fails, the second would take over as the default gateway for lab networks.
I want to be clear: this isn’t something you need urgently, but rather something you’d like to have as an added benefit in your HomeLab setup. Regarding VRRP with an ISP router, I find it challenging to imagine a perfect solution.
When it comes to authentication, I’m talking about an AAA system—either a RADIUS server or a TACACS+ server. I know these terms can sound complicated. My goal is to emphasize that I never would compromise my home network by allowing remote access without strong protection. I’ve seen firsthand how risky it can be for those who take advantage of unprotected connections.
My career in cybersecurity has made me more aware than ever of the risks involved. I’m grateful to have a path in this field, but I also understand the challenges. If you’re planning to implement remote access, I strongly recommend researching AAA, RADIUS, and TACACS+ thoroughly before proceeding. I’ll share some articles on these topics.
What is TACACS? Understanding Network Protocols By WireX Systems
What Is AAA Security? | Fortinet
What Is the RADIUS Protocol? | Fortinet
Moving on to your lab Wi-Fi question: I’m removing it from my setup because of those important considerations. Even though you’re connected to just one network at a time, devices still keep credentials stored. This violates the least privilege principle and creates a security risk.
Imagine a scenario where someone tries to access your lab network using a device like a Wi-Fi router. If they manage to get credentials, it’s a clear breach. I’m not asking you to be scared, but I want you to understand the seriousness of this choice.
My background in cybersecurity has shown me how quickly things can go wrong if proper safeguards aren’t in place. I’m proud to have entered this field, but I also recognize the responsibility that comes with it.
I encourage you to learn more about AAA, RADIUS, and TACACS+ before moving forward. I’ll provide links to relevant resources.
Your safety and network integrity are important—please take these points seriously.
Here’s a revised version of your message:
Thank you for the thorough and insightful reply! It’s truly valuable to receive direct input from someone with your knowledge and experience. I’m hopeful we can find a configuration that aligns with my objectives while ensuring stability. Yes, the ISP router is likely a significant component that isn’t ideal, but overall it tends to remain operational. As you mentioned, it probably isn’t the main cause of downtime at the moment.
How do you feel about my reasons for keeping the ISP router? Am I justified in maintaining it, or should I consider removing it entirely? I appreciate the idea that any modifications I make to my lab network can still provide reliable access for other family members. The current setup already delivers Wi-Fi to household devices, and I don’t want to reconfigure everything myself. Since no one else will be handling advanced tasks like remote access or port forwarding, it seems reasonable to depend on the ISP device and its firewall for those functions.
I also suspect ISPs prefer placing their equipment at the network’s edge, especially for troubleshooting and future infrastructure changes such as fiber rollouts. I respect the challenges involved in this endeavor. Unfortunately, my understanding is limited, and I’ve only had to manage projects with minimal complexity. I’m eager to learn and try these configurations but worry about managing the added complexity alongside other priorities.
Do you think there are enough guides and resources available for someone like me to set up a secure and functional system? Ideally, I’d want to grasp the basics first, then follow instructions from experienced users. Once that’s done, simple maintenance should be manageable. If it becomes more complex, I fear my limited time might get consumed by maintaining this setup instead of focusing on my main goals.
Thanks for sharing the explanations about AAA, Radius, and TACACS+! Am I correct in thinking that AAA (such as Radius or TACACS+) is most useful for systems with many users requiring different access levels? In my case, I’d just need to authenticate a single user—like myself—for network access, and full authorization for managing the entire lab.
I’m also curious about the benefits of TACACS+ compared to other authentication methods like WireGuard. Can it offer stronger security? If so, what extra protections could I add? For instance, can I restrict access to only my devices using MAC addresses or unique personal identifiers?
Given that only I’ll be accessing this network, can I implement additional security measures? For example, should I allow only my own devices and use unique identification details for each?
I’m also considering upgrading to a more capable device, such as the OPNsense DEC2752 for my OPNSense router/firewall. This could support IPDS and provide an extra layer of security once implemented. Does that sound like a solid plan?
How many specialized devices would I need for this setup? Your approach appears much more secure. My main concern is balancing convenience with safety. I wanted to use my personal devices (phone, laptop, workstation) as direct access points to the lab equipment. It would be frustrating to have to visit the server room regularly for updates or troubleshooting.
I’m trying to maintain a good balance between security and ease of use. Are there scenarios where I could still work from my preferred devices at home? Is it realistic to connect securely via VPN even when physically at home, despite potential latency? It might be a necessary trade-off for the level of protection I need.
Again, thank you for your time and guidance. Your expertise is invaluable, especially given how important this is to me. I’m eager to learn and apply these ideas responsibly.
Regarding your initial concern, the answer is yes, you can keep your ISP router. At this stage, there’s no pressing reason to swap it unless you have a particular device you wish to upgrade. It will offer solid protection and connectivity, and the best part is, upgrading hardware isn’t costly! Woo-hoo!
Concerning complexity, many ideas may seem overwhelming at first, but they’re actually quite manageable with consistent study and guidance. Dedicate time periodically to understand these concepts, and with expert support, you can confidently handle similar projects. You’re right about AAA being designed for groups, not just single users—your focus on authentication is spot-on. The ‘Authorization’ and ‘Accounting’ aspects aren’t essential here unless you plan to store logs later. The ‘Access Control’ part is mainly about who gets in, which is the core of AAA.
A quick note: TACACS+ is exclusive to Cisco equipment, so you can concentrate on RADIUS for now. If you want practical experience with basic AAA or networking, try Cisco Packet Tracer—it’s free and a great learning aid. It helps simulate real scenarios, from refreshing CCNA knowledge to testing network setups.
Regarding MAC filtering, it adds another layer of security, though you may not find all the options in OPNSense. The OPNSense 2752 is an excellent choice for your needs. You won’t need extra hardware; just connect it to the 7250 as usual. Implementing IPSec VPN with the 2752 makes remote access much easier.
For authentication in your VPN setup, you could restrict entry to MAC addresses or use other methods. Your devices can be allowed to reach the lab network from home, but all traffic must pass through OPNsense before reaching the lab. This ensures your identity is verified before access—no passwords stored locally.
At home, you’d manage via OPNSense > AAA > Lab Access; remotely, via VPN > OPNSense > AAA > Lab Access. If you prefer password managers for storing credentials, KeePass 2 is a solid option. It strikes a balance between strong security and usability.
This approach covers your main points. Let me know if anything was missed!
It’s great to hear you’re feeling more at ease with this! Regarding expert assistance, do you mean getting advice from someone like yourself, or are there reliable online resources that can teach you enough for your needs? Confirmed: I’m focusing on RADIUS. That sounds really helpful—I’ll download it and try it out soon! I’ll explore this further.
I already have a mini PC at home, so I can install OPNSense locally without going online. I’ll see what I can discover. This connects to another issue I’m dealing with. I’m working on a network used by various family devices, and I’d like to verify its security. Would it be possible to check if the network has been compromised without me noticing? That would give me confidence that it’s safe.
I’m excited about this, especially since I want to ensure my systems stay secure as I add more protection layers. If I don’t need extra hardware, are you suggesting that even the AAA can run on this OPNSense device? I notice OPNSense supports freeRADIUS, which might be a convenient all-in-one option. Have you used freeRADIUS before and would recommend it?
On hardware concerns, I’m curious about possible issues with having both an ISP router and an OPNSense unit. Could this create a double NAT scenario? Would that cause problems in practice, or is it manageable for my setup? That sounds perfect!
From a real-world perspective, how would I connect my wireless laptop and phone to the lab, given your advice to remove the Wi-Fi access point? Should I still use a wired connection, or is there a way to reintroduce it without risking pivot attacks? I’m also considering using an Apple password manager for both devices. The biometric-protected passkey system seems appealing—I’d love to incorporate that too.
It depends on your comfort level with the topic. You can choose either a dedicated AAA server or the freeRADIUS feature built into OPNSense. If you have a dedicated AAA server, I’d still suggest using freeRADIUS to combine both tasks. You’d likely need to switch one of your routers into bridging mode. From a practical view, your ISP router would probably be the best choice, possibly requiring a call to your provider. From a security perspective, you’d need to evaluate which router in bridging mode is safer for both networks. I don’t often work with consumer ISP equipment, so I can’t give a definitive answer about their behavior. Your personal devices would route through your default gateway (the ISP router), then the router would forward traffic to OPNSense. This approach eliminates the pivot point since OPNSense manages all traffic directly, which is safer than other methods. It’s not perfect, but it’s significantly improved over the alternative. What works best for you!
You’d need to engage a specialist in cybersecurity—someone like me, a cybersecurity engineer or malware analyst/security architect—to get a fully accurate response. While many tools are available online, most require paid subscriptions or enterprise solutions. It’s not cost-effective for someone working independently on this scale. The effort involved is significant, both in time and resources, so it depends on your priorities.