Lync 2010 Network Port Requirements and Summaries

While doing my last buildout of Lync 2010, I included some information showing all the port requirements along with a quick summary for the network team to have all the information they would need to assist in the build.  I thought I should post it here.


Port Requirements

Server Role Enabled Ports DNS LB HLB
A/V Conferencing

Server

5063/TCP used for AV conferencing No No
57501-65335/TCP/UDP – Used for media port range No No
Edge Server 3478/UDP (internal and external interfaces) for STUN/UDP inbound and outbound media communications Yes No
443/TCP (external interface) for SIP/TLS communications for external users accessing internal Web conferences, and STUN/TCP inbound and outbound media communications for accessing internal media and A/V sessions Yes No
4443/TCP used to push configuration data from the Central Management Server to the Edge Server. This port must be opened on every individual Edge Server, not on the load balancer. No No
5061/TCP (internal and external interface) for SIP/MTLS communication for remote user access or federation Yes No
5062/TCP (internal interface) for SIP/MTLS authentication of instant messaging communications flowing outbound through the internal firewall Yes No
8057/TCP (internal interface) for PSOM/MTLS communications from the Web Conferencing Server on the internal interface of the Web Conferencing Server No No
50,000-59,999/RTP/TCP used for inbound and outbound media transfer through the external firewall No No
Director 5060/5061/TCP/MTLS for all internal communication Yes No
Enterprise Edition Server 80/TCP for traffic from the front-end servers to the Web farm FQDNs Yes Yes
135/DCOM/RPC used for DCOM based operations such as Moving Users, User Replicator Synchronization, and Address Book Synchronization Yes Yes
443/TCP for HTTPS traffic from the front-end servers to the Web farm FQDNs Yes Yes
444/TCP for HTTPS traffic between the focus and the conferencing servers Yes No
445/TCP used for replication from central management server to Microsoft Lync Servers No No
448/TCP used for Lync Server Bandwidth Policy Service Yes No
5060/5061/TCP/MTLS for all internal communication Yes No
5062-5065 for IM conferencing, A/V conferencing, telephony conferencing, and application sharing No No
5066/TCP – for outbound E.911 gateway No No
5067/TCP/TLS used for incoming SIP requests from PSTN gateway Yes No
5068/TCP used for incoming SIP requests from the PSTN gateway Yes No
5069/TCP – for QoE Agent on the front end server Yes No
5070/TCP used for listening for SIP traffic for mediation service Yes No
5071-5074 for Response Group, Conferencing Attendant, Conferencing Announcement Yes No
5075/TCP used for incoming SIP requests for the Call Park Service Yes No
5076/TCP used for incoming SIP requests for the Audio Test service Yes No
5080/TCP used for Lync Server Bandwidth Policy Service Yes No
8057/TLS to listen to PSOM connections from Live Meeting No No
8080/TCP used for external IIS for Address Book Server and sharing slides Yes Yes
8404 for internal server communications (remoting over MTLS) for Response Group No No
49152-57500/TCP/UDP for media requests for audio conferencing on all internal servers. Used by all servers that terminate audio. No No
49152-65335/TCP – Used for application sharing port range No No
57501-65335/TCP/UDP – Used for media port range No No
Monitoring Server 135 for MSMQ No No
Reverse Proxy 80/TCP used for connection from ISA to internal Web Services No No
8080/TCP used for external IIS for Address Book Server and sharing slides No No
443/TCP used for listening on the external interface for incoming requests from external users for Web components information, and file downloads, distribution expansion as well as Address Book information. No No
4443/TCP used by Reverse Proxy for distribution group expansion No No
Component Port Protocol Notes
Clients 67/68 DHCP Used by Lync Server 2010 to find the Registrar FQDN (that is, if DNS SRV fails and manual settings are not configured).
Clients

443

TCP (TLS) Used for client-to-server SIP traffic for external user access.
Clients

443

TCP (PSOM/TLS) Used for external user access to web conferencing sessions.
Clients

443

TCP (STUN/MSTURN) Used for external user access to A/V sessions and media (TCP)
Clients

3478

UDP (STUN/MSTURN) Used for external user access to A/V sessions and media (TCP)
Clients

5061

TCP (MTLS) Used for client-to-server SIP traffic for external user access.
Clients 1024-65535 TCP/UDP Audio port range (minimum of 20 ports required)
Clients 1024-65535 TCP/UDP Video port range (minimum of 20 ports required).
Clients 1024-65535 TCP Peer-to-peer file transfer (for conferencing file transfer, clients use PSOM).
Clients 1024-65535 TCP Application sharing.

 
 

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One response to “Lync 2010 Network Port Requirements and Summaries

  1. Becky Kloster

    I also did some videoconferencing last year and i really love it. Videoconferencing is very exciting since you can conduct a meeting without being physically present. ;:,’; Many thanks healthmedicinelab

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