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CuriouslyContrasted

Residential RSP’s will only give you a single public IP. You can sign up for two different Internet services, plug one router into each port and keep your work stuff completely separate.


chrien

Just double nat your home connection off your other connection. But no you can’t plug into two separate ports without buying two separate services.


Soldiiier__

Yes this, or extreme case, activate another service on your FTTP port? Maybe a cheaper plan via launtel


radditour

This is what I do - primary and secondary service from Launtel, pause the secondary service when not needed so it doesn’t cost anything.


Soldiiier__

and it takes them like 3 mins to active the services too!


stephendt

False, you can absolutely have multiple WANs on a single router, it just needs to support it. Pretty much anything that runs OpenWrt can do this, and you can setup firewall rules from there


chrien

I meant off the ntd in line with what the OP is wanting to do


stephendt

Yeah fair enough. The double NAT option sounds like the way to go then. That's how I do any network testing myself


FreddyFerdiland

You could also use a router that has a firewall with "drop in" or " transparent" mode..its bridging with firewall... And the network range is the same on both side... Use Firewalling such as in openwrt, pfsense,watchguard.. set the ethernet into bridge. Linux basically Eg With the firewall, you could block your dhcp service from responding on the main LAN I suppose you could have this firewalling router in one of three places 1. as the main LAN router 2. As your test router 3. Inbetween the two .. But if u really need to test the regular usage of the router, with NAT and all,and test it works properly eg sip, voip, vpn.. I guess you need eg nbn fttp and a second service.


b100jb100

A single IP address can only be shared by using NAT on a router. A switch can't do NAT. If you have Fttp, you can get two separate internet services, but you'll obviously have to pay for both.


markosharkNZ

Something like a Mikrotik router, and 2 separate networks, one for home use, one for business?


charlie4372

I had a similar issue. But my problem was the number of devices, the boot up sequence and knowing how long to wait between steps. Ended up throwing it away in favour of a router that I could install software on (ASUS ax86 with Merlin) and some external services (nextdns and cloudflare). Also threw in some startup scripts to make sure that it comes up healthy without assistance. Yes, somethings were compromised but it was all worth it for happy wife and kids. Got a problem, turn it off, wait, turn it on. If I break the config, fix it before anyone notices :) After a while, you get pretty good at knowing when you are going to risk breaking something. If I had to run two, I’d get a very good main one to take the internet connection and to serve the house. If it was good enough, I would create a vlan for me to keep my mucking around separate. Failing that, I’d put my play router on after the main one. I would disable NAT and yes, some config would be split over the two routers. There’s no escaping port forwarding from the main to the secondary. The key thing is that the main one can be rebooted without issue and “just work”


Capable_Muffin_4025

No, single IP address, one device per port/service. How do you constantly break your router, even when away?


sliderjt

What is your job and what changes do you have to make?


GTR-12

Who cares about the OP's job, just answer the question.


sliderjt

Because understanding why the OP is making the changes in the first place may highlight a better solution.