2 Home WiFi Routers connected via ethernet, how to create PRIVATE and GUEST wireless?

Hello - I have scoured the DD-WRT forums and found several articles that are close but I'm not sure any are what I need.  I have a Primary and Secondary Wifi router connected over ethernet, through a switch, in my home.  A WRT54g (with DD-WRT firmware) is primary and a TP-Link Archer C5 (with stock firmware) is Secondary.  I would like to make the WRT54g as 'router only', turning off radios, and make the TP-Link  'AP-only'  What is the best way to accomplish creating a PRIVATE and PUBLIC (where public clients can connect to each other - for gaming) network and where the PUBLIC does not have access to the PRIVATE network?  I have seen references to creating separate VLANs or separate subnets to accomplish this but not sure which is better/easier.  I believe the CFG would be within the primary Router in DD-WRT, to dictate the network cfg.  Thanks for your insight!
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Fred MarshallPrincipalCommented:
It's covered on the user manual page 59.  All the settings you need appear to be there.
Choose menu “Advanced→Guest Network”,
Benjamin VoglarIT ProCommented:
Connect TP-Link to modem. SSID (Private), configure it that have network. Connect your WRT to port 1 or 2 or 3 ... (on TP-LINK) Set up WRT to static wan IP (SSID GUEST) and give him internal address space Users who Will acess to GUST SSID Will not be able to see the private netwok. I hope you understand.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
davisAuthor Commented:
I see your solutions uses subneting to segregate the networks.  I may need to swap the routers in your example, i'll test.  the WRT may be the the better device connected to the modem in this situation, since it has more functional firmware (DD-WRT).
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Wireless Networking

From novice to tech pro — start learning today.