"Forward Outgoing DNS Requests to Local DNS Proxy" truncates DNS responses to 512 and doesn't set the TC flag

Hi,

I have a Surf SOHO MKIII, latest firmware (8.0.2), and when I turn on Advanced -> Service Forwarding -> “Forward Outgoing DNS Requests to Local DNS Proxy” my DNS responses get truncated to 512 bytes. Moreover, the TC flag is not set on the header so the client doesn’t know the response has been truncated.

  1. Could we do away with the truncation?
  2. If not, could we set the proper header flag (TC) in cases of truncation?

Easy repro:
nslookup -type=TXT _acme-challenge-test.azuredns.site 40.90.4.1

For more information see: https://github.com/MichaCo/DnsClient.NET/issues/52

Thanks,
Ohad

Hi.
Please log a ticket with engineering so the right team can get working on this issue straight away.

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Thanks, opened ticket #20030192

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Checking on your ticket , please stay tuned and we will get back after investigate the reported issue

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