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Former Employee

Apr 13, 2022

Announcing public preview of Azure Virtual Desktop RDP Shortpath for public networks

Today I have the pleasure of announcing the public preview of RDP Shortpath for public networks. This Remote Desktop Protocol (RDP) feature establishes a direct UDP data flow between the Remote Deskt...

Brass Contributor

Apr 15, 2022

Great work, this should really help our remote workers. So my understanding is that this is supported by UDRs to NVAs provided they don't double NAT on the Firewall. Is this what "Local NAT does not use Port Preservation - custom port range may not work worth shortpath" means on the troubleshooting script provided? I'm not defining a custom port range on my session hosts, and I'm seeing STUN traffic successfully establish a binding request at both ends but no UDP.
Also would using the AzureVirtualDesktop service tag on a custom UDR (to send that straight out of the session host and bypass NVA inspection) help? I've tried and it doesnt appear to.
Any additional logs other than the Log Analytics ones.?

thanks

pcluskey
Brass Contributor
Apr 19, 2022
update: it seems like this has now just started to work - even though I've made no additional host or network changes, so maybe a backend change. Either way its looking good!
- pcluskey
  Brass Contributor
  Apr 20, 2022
  well I spoke too soon. no changes on our side, client on the same network as yesterday now using TCP again. I can't get it to work on my home broadband (Virgin) unless I disable UDR to our NVA (so can't do that in production). I'm wondering if my home mesh TPlink Deco is causing problems.
- dextraa9791
  Copper Contributor
  Apr 19, 2022
  pcluskey
  We started testing this feature today and also getting the same error.
  
  Failed to communicate [2a01:111:202f::155]:3478 with error: Unable to send data, check if InterNetworkV6 is configured
  Local NAT does not use port preservation, custom port range may not work with Shortpath
  
  Anyone else running into this?
  - MawandaH
    Brass Contributor
    Jul 27, 2022
    dextraa9791I just enabled shortpath using the guide "https://3tallah.com/improve-your-end-user-experience-with-rdp-shortpath-for-avd/?unapproved=101&moderation-hash=4c1fa124dd396ca4c6c9ff4904c54e87#comment-101" before following these steps I struggled to get this working.

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