Licode with Nginx plus

Support
1

I setup Licode server and access by ELB on AWS, because ELB is not support UDP, so I try to using Nginx plus to replace ELB.
The architecture is
Internet(Client) → Nginx plus Server → Licode Server

but the Basic Example cannot run well, In the Licode server I found the failed log:

  LibNiceConnection -  message: failed and not received all candidates, newComponentState:1234:

I don’t know the reason.

I read the ‘Deploying Licode with Nginx’, but what about the UDP ? Should we need to set the erizo.stunserver ?