# Network / Firewall Settings When an [immediation-pre-flight-checks](https://docs.immediation.com/support-materials/immediation-pre-flight-checks "mention")test is run and some of the networks tests come back fail / red the problem is often due to local client or client network firewall rules which are blocking the required protocols, IP addresses and ports to provide seamless access. This document outlines the required firewall changes. These changes typically need to be performed by the IT Network Security team, or similar, within your organisation. ## Justification for Change Request Immediation is an Online Dispute Resolution platform used by various organisations throughout the various states and territories of Australia and Globally. The Immediation platform comprises video conferencing, and in order to function, requires certain network ports and protocols to be correctly configured. The core video serving technology is supported by the Twilio infrastructure. Twilio is a trusted global communication and media service provider. It is Twilio's trusted documentation that is the key source of information relating to ports, protocols and remote IP addresses, which are required to be whitelisted. ## Required Configuration Source of information: The key changes are listing hosts, ports and IP ranges for the following services: * [Signaling Communications](#signaling-communications-changes) * [Media Servers](#media-servers) * [Additional Connectivity Requirements](#additional-connectivity-requirements) ### Signaling Communication Changes Source of information: The key access changes required for Australian users are: * Global Low Latency (default) * Host name: global.vss.twilio.com * Port and protocol: 443 WSS * Australia * Host name: au1.vss.twilio.com * Port and protocol: 443 WSS * Details for other countries can be found here: ### Media Server Changes Source of information: The key access changes required for Australian users is: * Australia * IPv4 Address Ranges: * 13.210.2.128 - 13.210.2.159 * 54.252.254.64 - 54.252.254.127 * 3.25.42.128 - 3.25.42.255 Ports used: 10,000 - 60,000 UDP/SRTP/SRTCP *and* TLS/443 or UDP/3478 ### Additional Connectivity Requirement Changes Source of information: The access change required for all regions is: * Global * Host name: sdkgw\.us1.twilio.com * Port and protocol: 443 WSS ## Test and Confirm Changes Following successfully applying the above access changes to your network / firewall you can confirm they have had the desired effect by visiting: and running the 2-minute tests. At the end of the test all results should be green and marked as "pass". Please inform your users that the changes have been made to allow Immediation platform the required access. If they are not please revisit the source of information: and confirm the IP addresses with the changes you have made and then retry. ## Questions & Contact For any questions, feedback, or extra support, please do not hesitate to contact us. .