Ports and Protocols Used by Microsoft SQL Server

Service / Purpose	Protocol	Port
Analysis Services connections via HTTP (default)	TCP	80
Analysis Services connections via HTTPS (default)	TCP	443
Clustering	UDP	135
Clustering	TCP	135 (RPC) / 3343 (Cluster Network Driver) / 445 SMB / 139 NetBIOS / 5000-5099 (RPC) / 8011-8031 (RPC)
Database Mirroring	TCP	There is no default port for this service. Use the following T-SQL statements to identify which ports are in use: SELECT name, port FROM sys.tcp_endpoints.
Dedicated Administrator Connection	TCP	1434 by default (local port). But this port is assigned dynamically by SQL Server during startup.
Filestream	TCP	139 y 445.
Microsoft Distributed Transaction Coordinator (MS DTC)	TCP	135
Reporting services Web Services	TCP	80
Reporting Services configured for use through HTTPS	TCP	1433
Service Broker	TCP	4022
SQL Server 2008 Analysis Services	TCP	2382 (SQL Server Browser Services for SSAS port) 2383 (Clusters will listen only on this port)
SQL Server Browser Service (Database Engine)	UDP	1434. Might be required when using named instances.
SQL Server Browser Service	TCP	2382
SQL Server default instance running over an HTTPS endpoint.	TCP	443
SQL Server Instance (Database Engine) running over an HTTP endpoint.	TCP	80 y 443 (SSL).
SQL Server Integration Services	TCP	135 (DCOM).
SQL over TCP (default instance)	TCP	1433
Transact-SQL Debugger	TCP	135
Windows Management Instrumentation	TCP	135 (DCOM)

References:


Configuring the Windows Firewall to Allow SQL Server Access.
http://msdn.microsoft.com/en-us/library/cc646023.aspx 

Enable a network for cluster use.
http://technet.microsoft.com/en-us/library/cc728293(WS.10).aspx