Default Ports

 Default Port Assignments for Common Services

Service Name	UDP	TCP
Browsing datagram responses of NetBIOS over TCP/IP	138
Browsing requests of NetBIOS over TCP/IP	137
Client/Server Communication		135
Common Internet File System (CIFS)	445	139, 445
Content Replication Service		560
Cybercash Administration		8001
Cybercash Coin Gateway		8002
Cybercash Credit Gateway		8000
DCOM (SCM uses udp/tcp to dynamically assign ports for DCOM)	135	135
DHCP client		67
DHCP server		68
DHCP Manager		135
DNS Administration		139
DNS client to server lookup (varies)	53	53
Exchange Server 5.0
Client Server Communication		135
Exchange Administrator		135
IMAP		143
IMAP (SSL)		993
LDAP		389
LDAP (SSL)		636
MTA - X.400 over TCP/IP		102
POP3		110
POP3 (SSL)		995
RPC		135
SMTP		25
NNTP		119
NNTP (SSL)		563
File shares name lookup	137
File shares session		139
FTP		21
FTP-data		20
HTTP		80
HTTP-Secure Sockets Layer (SSL)		443
Internet Information Services (IIS)		80
IMAP		143
IMAP (SSL)		993
IKE (For more information, see Table C.4)	500
IPSec Authentication Header (AH) (For more information, see Table C.4)
IPSec Encapsulation Security Payload (ESP) (For more information, see Table C.4)
IRC		531
ISPMOD (SBS 2nd tier DNS registration wizard)		1234
Kerberos de-multiplexer		2053
Kerberos klogin		543
Kerberos kpasswd (v5)	464	464
Kerberos krb5	88	88
Kerberos kshell		544
L2TP	1701
LDAP		389
LDAP (SSL)		636
Login Sequence	137, 138	139
Macintosh, File Services (AFP/IP)		548
Membership DPA		568
Membership MSN		569
Microsoft Chat client to server		6667
Microsoft Chat server to server		6665
Microsoft Message Queue Server	1801	1801
Microsoft Message Queue Server	3527	135, 2101
Microsoft Message Queue Server		2103, 2105
MTA - X.400 over TCP/IP		102
NetBT datagrams	138
NetBT name lookups	137
NetBT service sessions		139
NetLogon	138
NetMeeting Audio Call Control		1731
NetMeeting H.323 call setup		1720
NetMeeting H.323 streaming RTP over UDP	Dynamic
NetMeeting Internet Locator Server ILS		389
NetMeeting RTP audio stream	Dynamic
NetMeeting T.120		1503
NetMeeting User Location Service		522
NetMeeting user location service ULS		522
Network Load Balancing	2504
NNTP		119
NNTP (SSL)		563
Outlook (see for ports)
Pass Through Verification	137, 138	139
POP3		110
POP3 (SSL)		995
PPTP control		1723
PPTP data (see Table C.4)
Printer sharing name lookup	137
Printer sharing session		139
Radius accounting (Routing and Remote Access)	1646 or 1813
Radius authentication (Routing and Remote Access)	1645 or 1812
Remote Install TFTP		69
RPC client fixed port session queries		1500
RPC client using a fixed port session replication		2500
RPC session ports		Dynamic
RPC user manager, service manager, port mapper		135
SCM used by DCOM	135	135
SMTP		25
SNMP	161
SNMP Trap	162
SQL Named Pipes encryption over other protocols name lookup	137
SQL RPC encryption over other protocols name lookup	137
SQL session		139
SQL session		1433
SQL session		1024 - 5000
SQL session mapper		135
SQL TCP client name lookup	53	53
Telnet		23
Terminal Server		3389
UNIX Printing		515
WINS Manager		135
WINS NetBios over TCP/IP name service	137
WINS Proxy	137
WINS Registration		137
WINS Replication		42
X400		102