OVOC Service Provider Firewall Configuration

This section describes how to configure the Enterprise Firewall between the OVOC Service provider network and the UMP/SBC.

To configure the Enterprise firewall on Microsoft Azure:
1. On Microsoft Azure, ensure that you have deployed the OVOC Virtual Machine as described in the OVOC IOM.
2. Configure the Enterprise firewall according to the ports below.

OVOC Firewall

Connection

Port Type

Secured Connection

Port Number

Purpose

Port side /

Flow Direction

OVOC clients and OVOC server

HTTPS/NBIF Clients ↔ OVOC server

TCP (HTTPS)

443

Connection for OVOC/ NBIF clients.

Initiator: Client

OVOC server side / Bi-directional

WebSocket Client ↔ OVOC Server Communication

TCP (HTTP)

915

WebSocket Client and OVOC Server communication (internal) according to RFC 6455, used for managing the alarm and task notification mechanism in the OVOC Web.

Initiator (internal): WebSocket Client

OVOC server side / Bi-directional

OVOC server and OVOC Managed Devices

Device ↔ OVOC server (SNMP)

UDP

1161

Keep-alive - SNMP trap listening port (used predominantly for devices located behind a NAT). Used also by Fixed License Pool and Floating License Service.

Initiator: AudioCodes device

OVOC server side / Receive only

UDP

162

SNMP trap listening port on the OVOC.

Initiator: AudioCodes device

OVOC server side / Receive only

UDP

161

SNMP Trap Manager port on the device that is used to send traps to the OVOC server. Used also by Fixed License Pool and Floating License Service.

Initiator: OVOC server

MG side /

Bi-directional

Device↔ OVOC server (NTP Server)

UDP

(NTP server)

123

NTP server synchronization for external clock.

Initiator: MG (and OVOC server, if configured as NTP client)

Initiator: Both sides

Both sides /

Bi-directional

Device ↔ OVOC server

TCP (HTTP)

80

HTTP connection for files transfer and REST communication.

Initiator: Both sides can initiate an HTTP connection

OVOC server side / Bi-directional

TCP (HTTPS)

443

HTTPS connection for files transfer (upload and download) and REST communication.

Initiator: Both sides can initiate an HTTPS connection.

OVOC server side / Bi-directional

Device↔ OVOC server Floating License Management

TCP (HTTPS)

443

HTTPS connection for files transfer (upload and download) and REST communication for device Floating License Management.

Initiator: Device

OVOC server side / Bi-directional

Endpoints

Endpoints ↔ WAF/Azure Blob

TCP (HTTPS)

443

HTTPS connection between the endpoints and the WAF.

Initiator: Endpoints

OVOC server side / Bi-Directional

HTTPS connection used by endpoints for downloading firmware and configuration files from the Azure Blob.

Initiator: Endpoints

OVOC Voice Quality Package Server and Devices

Media Gateways ↔ Voice Quality Package

TCP

5000

XML based communication for control, media data reports and SIP call flow messages.

Initiator: Media Gateway

OVOC server side / Bi-directional

TCP (TLS)

5001

XML based TLS secured communication for control, media data reports and SIP call flow messages.

Initiator: AudioCodes device

OVOC server side / Bi-directional

LDAP Active Directory Server

OVOC server ↔ Active Directory LDAP server (OVOC user authentication)

TCP

389

Connection between the OVOC server and the Active Directory LDAP server (OVOC Users).

Initiator: OVOC server

Active Directory server side/ Bi‑directional

TCP (TLS)

636

Connection between the OVOC server and the Active Directory LDAP server (OVOC Users) with SSL configured.

Initiator: OVOC server

Active Directory server side/ Bi‑directional

 

AudioCodes Floating License Service

OVOC server ↔AudioCodes Floating License Service

TCP

443

HTTPS for OVOC/ Cloud Service

Initiator: OVOC REST client

OVOC REST client side / Bi-directional

External Servers

OVOC server ↔ Mail Server

TCP

25

Trap Forwarding to Mail server

Initiator: OVOC server

Mail server side / Bi-directional

OVOC server ↔ Syslog Server

TCP

514

Trap Forwarding to Syslog server.

Initiator: OVOC server

Syslog server side /Bi-directional

OVOC server ↔ Debug Recording Server

UDP

925

Trap Forwarding to Debug Recording server.

Initiator: OVOC server

Debug Recording server /Bi-directional

OVOC server ↔UMP-365 server

TCP RDP

3389

Remote Desktop access to UMP-365 server

Initiator: OVOC server

UMP-365 server/Bi-directional

Voice Quality

Voice Quality Package ↔ Endpoints (RFC 6035 )

UDP

5060

SIP Publish reports sent to the SEM server from the endpoints, including RFC 6035 SIP PUBLISH for reporting device voice quality metrics.

Initiator: Endpoint

SEM server / Bi‑directional