DNS Servers OC200 & EAP225 & SDN - How get to work without TP-Link gateway

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DNS Servers OC200 & EAP225 & SDN - How get to work without TP-Link gateway

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
DNS Servers OC200 & EAP225 & SDN - How get to work without TP-Link gateway
DNS Servers OC200 & EAP225 & SDN - How get to work without TP-Link gateway
2021-03-18 01:10:42
Model: OC200  
Hardware Version: V3
Firmware Version: 1.74

I can not get the OC200 or EAP225 to use the DNS servers I want to block adult content. 

 

I have set static IPs on both and put in Cleanbrowsing DNS servers that I know block adult and malicious content.

 

Why aren't they being used?  Please don't say  "you need to have a TP-Link Gateway".  I don't need yet more hardware!

 

How to get them to use those DNS addresses is the question?

 

Thanks

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Re:DNS Servers OC200 & EAP225 & SDN - How get to work without TP-Link gateway
2021-03-18 11:03:05 - last edited 2021-03-18 13:30:25

@OmadaSMS 

 

Hey

 

Personally I wouldn't have set the DNS on the AP or OC200, the DNS on these I would have left as your Gateway / Router (whatever it is).   Instead setting the DNS on the gateway / ISP Router or whatever you have.

 

 

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Re:DNS Servers OC200 & EAP225 & SDN - How get to work without TP-Link gateway
2021-03-18 12:46:29 - last edited 2021-03-18 12:50:01

@OmadaSMS 

 

Set the DNS servers on your router. 

 

I have a similar set up with EAP's and the OC200 controller. 

 

On the router I set Cloudflare DNS servers, that block explicit sites and malware. 

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Re:DNS Servers OC200 & EAP225 & SDN - How get to work without TP-Link gateway
2021-03-18 14:37:05

Thanks @rjow2021 

 

The installs are all captive portals behind customer routers that we don't have access to.  Setting DNS in the router is not an option.

 

What is the purpose of the DNS settings in the OC200 and EAP if they don't do anything?

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Re:DNS Servers OC200 & EAP225 & SDN - How get to work without TP-Link gateway
2021-03-18 14:47:38

@OmadaSMS 

 

 

Its incase you have 2x or more DNS servers on your network, the same can be seen on windows devices also.

 

Say I have 3x DNS servers,  192.168.1.1     192.168.10.2     192.168.20.3      

 

Typically you would not put the external DNS on anything but the WAN facing router itself.   On clients or internal hardware (PC, laptop, OC200, APs etc) the DNS will always be the router / gateway.    Putting a DNS on the OC200 wont work as the gateway will just ignore and fire the packet to its DNS..  

 

The purpose of the DNS on these devices is to point it to which DNS server you wish it to use, say 192.168.10.2  in our example.   These are generally internal DNS servers and not the WAN DNS

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Re:DNS Servers OC200 & EAP225 & SDN - How get to work without TP-Link gateway
2021-03-18 16:22:54
Thanks, that's what I figured about WAN DNS. I can set the DNS on the captive portal radius server router that the OC200 and EAPs sit behind but not the client router. On a non captive portal, non radius system, I'll have to add a TL-R605 so I can control it from the "cloud". Still won't have access to client network router. Either way, it's another piece of hardware :-(
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Re:DNS Servers OC200 & EAP225 & SDN - How get to work without TP-Link gateway
2021-03-18 18:19:11

Just to state the obvious, your preference for DNS servers needs to be set on your router / gateway -- or whether your DHCP clients lease their IP's from. -- Adjusting these settings on the OC-200 / EAP's will not do what you want.

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