Create a reverse proxy policy through the EMS web interface, ensuring that the Allow Web Socket field for the reverse proxy policy is set to Y.
Procedure
Log on to the EMS web interface with administrator credentials.
In the navigation pane, click Device Specific Settings > DMZ Services > Relay Services.
On the Reverse Proxy tab, click Add.
The Add Reverse Proxy Profile page opens.
In the Service Name field, type the reverse proxy profile name.
Select the Enabled check box.
In the Listen IP field, click the external IP address of Session Border Controller.
In the Listen Port field, type the port number as 443.
In the Listen Protocol field, click HTTP/HTTPS.
In the Listen TLS Profile field, click the relevant TLS Profile.
In the Server Protocol field, click HTTP/HTTPS.
In the Connect IP field, click the internal IP address of Session Border Controller.
In the Reverse Proxy Policy Profile field, click the reverse proxy policy that you create.
In the Server Addresses field, type <Avaya Aura Web Gateway_FQDN>:<port number>.
Use the FQDN based on what you use in the SAN name when creating the TLS certificate.
The default port number on Avaya Aura® Web Gateway is 443. The value of <port number> must be the same as the port number configured in the Front-end port field on the HTTP Reverse Proxy page in Avaya Aura® Web Gateway.
To go to the HTTP Reverse Proxy page, you must log on to the Avaya Aura® Web Gateway administration portal and click External Access > HTTP Reverse Proxy.
In the Whitelisted URL field, type /token-generation-service/.