TL-R605 with OC200 L2TP/IPSec DNS Setting cannot be changed

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TL-R605 with OC200 L2TP/IPSec DNS Setting cannot be changed

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
TL-R605 with OC200 L2TP/IPSec DNS Setting cannot be changed
TL-R605 with OC200 L2TP/IPSec DNS Setting cannot be changed
2021-01-31 13:41:22 - last edited 2023-02-13 14:41:09
Model: ER605 (TL-R605)  
Hardware Version: V1
Firmware Version: Rel. 36519

Hi,

my setup is a TL-R605 controlled by a OC200 (all FW up-to-date) and normal network works. I've setup now a VPN (VPN Server L2TP) to which I can connect using iOS, Android and Windows. The problem is only that the VPN connected machine gets 8.8.8.8 as a DNS server for the VPN connection which cannot be changed in the VPN Settings on the OC200. I have nowhere set 8.8.8.8 as a DNS. 

How to change that behavior?

 

Thanks and Kind Regards
Marco

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#1
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10 Reply
Re:TL-R605 with OC200 L2TP/IPSec DNS Setting cannot be changed
2021-04-22 11:48:07

@MarcoE check at your omada.tplinkcloud.com account if a primary DNS is set. To see it go dashboard->manage cloud access->wired networks->internet->Wan section->advanced settings

Network Engineer 1.0
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Re:TL-R605 with OC200 L2TP/IPSec DNS Setting cannot be changed
2021-04-22 11:57:59

@xperiments DNS Server is set- but not to 8.8.8.8

In the meantime I got info from the support that right now 8.8.8.8 is hardcoded and it will be changed sometime in the future but they had not been able to tell me when. Really silly as the VPN connection is mainly for accessing resources on the intranet where the DNS from google is completely useless.

 

Kind Regards
Marco

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#3
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Re:TL-R605 with OC200 L2TP/IPSec DNS Setting cannot be changed
2021-06-06 17:50:28

@MarcoE @Fae I have the same issue, I was starting to think it actually was hard coded, now it has been confirmed, I guess I will wait until they code in the option to change the DNS from 8.8.8.8, actually when I change the DNS IP in my android device and connect, I get the ip reading the log, but the top DNS is 8.8.8.8 the second is the gateway IP and the third is my custom DNS ip...

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Re:TL-R605 with OC200 L2TP/IPSec DNS Setting cannot be changed
2021-10-04 09:30:49

@MarcoE So I was trying to address this as well when I stumbled upon this forum thread. Would love to see DNS to be configurable within the VPN configuration. It would make very much sense to be able to. One builds a VPN to be able to reach the resources at the other end of the tunnel. One would expect to be able to resolve the resources there as well. 

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Re:TL-R605 with OC200 L2TP/IPSec DNS Setting cannot be changed
2021-12-07 19:43:10

@MarcoE It is just unbelievable how Omada missing curial features such as this. 

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#6
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Re:TL-R605 with OC200 L2TP/IPSec DNS Setting cannot be changed
2021-12-18 12:48:13

@tansuk exactly. Now nearly one year is over- and nothing changed. From a support perspective I cannot recommend the devices.

 

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Re:TL-R605 with OC200 L2TP/IPSec DNS Setting cannot be changed
2023-02-13 14:46:52

one more year is over (I opened the thread around 2 years ago) and the DNS Server is still not changeable. I have no idea what TP-Link is having in their mind by setting an external DNS for a connection to the internal network.

BUT: it looks that something is happening. I had a look at the Emulator for Omada Emulator for Windows (Windows Omada Emulator) and there are at least input fields for the DNS Servers:

 

I have no idea why on the emulator (which is on version 5.7) this is available but on OC200 (version 5.7.6) it is not there. But maybe this means it will come.

Extremely slow for such a tiny feature but better late then never.

 

Kind Regards
Marco

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Re:TL-R605 with OC200 L2TP/IPSec DNS Setting cannot be changed
2023-02-13 15:54:45

  @MarcoE 

 

There is at least one option that allows this on my OC200 running 5.7.6:

 

 

I'll be honest I didn't care that it didn't exist on L2TP/IPsec because I was running that betwee ER605's and I applied the custom DNS to the LAN subnets I was forwarding..which works just perfectly.  I can see how it would be annoying for a true client device like a laptop though!

<< Paying it forward, one juicy problem at a time... >>
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Re:TL-R605 with OC200 L2TP/IPSec DNS Setting cannot be changed
2023-02-13 16:13:29

  @d0ugmac1 you're partially right. On "VPN Server - IPSec" the input fields for the DNS appear also on my OC200. But for all others (PPTP, L2TP, OpenVPN) not. On the Emulators the fields are available for all variants.

Kind Regards
Marco

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Re:TL-R605 with OC200 L2TP/IPSec DNS Setting cannot be changed
2023-05-14 01:24:51

Chiming in to add a +1 for this feature — it would be great to specify a different DNS server for VPN clients. I'm able to set a manual address in the LAN network that I'm connecting clients to, so it'd be ideal to either set the same address in the VPN profile, or to say the VPN profile inherits DNS from LAN (if associated with a single LAN).

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