Cisco Expressway Series User Manual

Expressway with Microsoft Infrastructure Port Reference
Notes about the deployment connections and ports
■ Trunk connections between Microsoft infrastructure elements not shown.
■ Media/signaling connections required for Microsoft client to client calls not shown.
■ Microsoft port ranges may vary from those shown here; check the Microsoft documentation to determine the
port ranges defined for your infrastructure.
■ Cisco Unified Communications Manager and collaboration endpoint connections not shown (for clarity). You
can see an example of those on MRA Connections, page 26.
■ Multiple media paths are possible because there are two TURNservers in the DMZ. "Any" source IPaddress is
listed because ICEnegotiation could mean the media path uses a relay address provided by one of the
TURNservers, or a reflexive address from the egress side of a firewall/NAT.
■ The Microsoft Interoperability service on the gateway Expressway has a shared pool of media ports (default
56000-57000). The service can use any port in the range for media connection on either TCPor
UDPtransport.
■ The drawing shows two IPaddresses on the Expressway-E because you may have one or two NICs enabled
on the Expressway-E. The address you enter for the TURNserver (on the Microsoft interoperability
configuration of the gateway Expressway) is the one that should listen on 3478 (TCPand UDP).
Purpose Src. IP Src. ports Protocol Dest. IP Dst.
Ports
SIPsignaling to Lync
environment
Gateway
Expressway
25000-29999 TLS Lync FEServer 5061
SIPsignaling from Lync
environment
Lync
FEServer
Ephemeral ports
(1024-65535)
TLS Gateway Expressway:
MSinterop B2BUA
65072
SIP signaling Microsoft
client
5061 MTLS Microsoft Edge 5061
SIP signaling Microsoft
Edge
5061 MTLS Microsoft client 5061
SIP/TLS & TCPTURN Microsoft
client
443 TLS Microsoft Edge 443
SIP/TLS &TCPTURN Microsoft
Edge
443 TLS Microsoft client 443
STUN Microsoft
client
3478 UDP Microsoft Edge 3478
STUN Microsoft
Edge
3478 UDP Microsoft client 3478
Table 18 SIPSignaling Port Reference
36
Cisco Expressway IP Port Usage Configuration Guide

Cisco Expressway Series Specifications

General

Category	Gateway
Deployment Options	On-premises, Cloud
Protocols	SIP, H.323
Security	TLS, SRTP
Management	CLI
Virtualization	VMware
Form Factor	Appliance, Virtual
Functionality	Interoperability
Integration	Cisco Unified Communications Manager
Network Interfaces	Gigabit Ethernet