IP Communication ports, CCNA 640-801 Exam Guide

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Cisco Hierarchical Model:
For more information about this, please read our separate tutorial titled "The Cisco Hierarchical Model".

OSI Model:
The OSI model is a layered model and a conceptual standard used for defining standards to promote multi-vendor integration as well as maintain constant interfaces and isolate changes of implementation to a single layer. It is NOT application or protocol specific. In order to pass any Cisco exam, you need to know the OSI model inside and out.

The OSI Model consists of 7 layers as follows:

Layer	Description	Device	Protocol
Application	Provides network access for applications, flow control and error recovery. Provides communications services to applications by identifying and establishing the availability of other computers as well as to determine if sufficient resources exist for communication purposes.	Gateway	NCP, SMB, SMTP, FTP, SNMP, Telnet, Appletalk
Presentation	Performs protocol conversion, encryption and data compression	Gateway and redirectors	NCP, AFP, TDI
Session	Allows 2 applications to communicate over a network by opening a session and synchronizing the involved computers. Handles connection establishment, data transfer and connection release	Gateway	NetBios
Transport	Repackages messages into smaller formats, provides error free delivery and error handling functions	Gateway	NetBEUI, TCP, SPX, and NWLink
Network	Handles addressing, translates logical addresses and names to physical addresses, routing and traffic management.	Router and brouter	IP, IPX, NWLink, NetBEUI
**Data Link	Packages raw bits into frames making it transmitable across a network link and includes a cyclical redundancy check(CRC). It consists of the LLC sublayer and the MAC sublayer. The MAC sublayer is important to remember, as it is responsible for appending the MAC address of the next hop to the frame header. On the contrary, LLC sublayer uses Destination Service Access Points and Source Service Access Points to create links for the MAC sublayers.	Switch, bridge and brouter	None
Physical	Physical layer works with the physical media for transmitting and receiving data bits via certain encoding schemes. It also includes specifications for certain mechanical connection features, such as the adaptor connector.	Multiplexer and repeater	None

Here is an easy way to memorize the order of the layers:
All People Seem To Need Data Processing. The first letter of each word corresponds to the first letter of one of the layers. It is a little corny, but it works.

Class	Range	Explanation
A	1-126	IP addresses can be class A, B or C. Class A addresses are for networks with a large number of hosts. The first octet is the netid and the 3 remaining octets are the hostid. Class B addresses are used in medium to large networks with the first 2 octets making up the netid and the remaining 2 are the hostid. A class C is for smaller networks with the first 3 octets making up the netid and the last octet comprising the hostid. The later two classes aren’t used for networks.
B	128-191
C	192-223
D	224-239 (Multicasting)
E	240-255 (Experimental)

A subnet mask blocks out a portion of an IP address and is used to differentiate between the hostid and netid. The default subnet masks are as follows:

Class	Default Subnet	# of Subnets	# of Hosts Per Subnet
Class A	255.0.0.0	126	16,777,214
Class B	255.255.0.0	16,384	65,534
Class C	255.255.255.0	2,097,152	254

In these cases, the part of the IP address blocked out by 255 is the Net ID.

3COM’s IP addressing tutorial is just superior. It covers basic IP addressing options as well as subnetting and VLSM/CIDR.

IPX/SPX:
IPX will also be an important issue to consider in network management given the fact there many companies still use Netware servers. There are two parts to every IPX Network address - the Network ID and the Host ID. The first 8 hex digits represent the network ID, while the remaining hex digits represent the host ID, which is most likely the same as the MAC address, meaning we do not need to manually assign node addresses. Note that valid hexadecimal digits range from 0 through 9, and hexadecimal letters range from A through F. FFFFFFFF in hexadecimal notation = 4292967295 in decimal.

Sequenced Packet Exchange(SPX) belongs to the Transport layer, and is connection-oriented. It creates virtual circuits between hosts, and that each host is given a connection ID in the SPX header for identifying the connection. Service Advertisement Protocol(SAP) is used by NetWare servers to advertise network services via broadcast at an interval of every 60 minutes by default.

TCP Ports from 1 to 500

tcpmux            1/tcp      # TCP Port Service Multiplexer [rfc-1078]
tcpmux            1/udp      # TCP Port Service Multiplexer
compressnet       2/tcp      # Management Utility
compressnet       2/udp      # Management Utility
compressnet       3/tcp      # Compression Process
compressnet       3/udp      # Compression Process
rje               5/tcp      # Remote Job Entry
rje               5/udp      # Remote Job Entry
echo              7/tcp      #
echo              7/udp      #
discard           9/tcp      # sink null
discard           9/udp      # sink null
systat            11/tcp     # Active Users
systat            11/udp     # Active Users
daytime           13/tcp     #
daytime           13/udp     #
netstat           15/tcp     #
qotd              17/tcp     # Quote of the Day
qotd              17/udp     # Quote of the Day
msp               18/tcp     # Message Send Protocol
msp               18/udp     # Message Send Protocol
chargen           19/tcp     # ttytst source Character Generator
chargen           19/udp     # ttytst source Character Generator
ftp-data          20/tcp     # File Transfer [Default Data]
ftp-data          20/udp     # File Transfer [Default Data]
ftp               21/tcp     # File Transfer [Control]
ftp               21/udp     # File Transfer [Control]
ssh               22/tcp     # Secure Shell Login
ssh               22/udp     # Secure Shell Login
telnet            23/tcp     #
telnet            23/udp     #
priv-mail         24/tcp     # any private mail system
priv-mail         24/udp     # any private mail system
smtp              25/tcp     # Simple Mail Transfer
smtp              25/udp     # Simple Mail Transfer
nsw-fe            27/tcp     # NSW User System FE
nsw-fe            27/udp     # NSW User System FE
msg-icp           29/tcp     # MSG ICP
msg-icp           29/udp     # MSG ICP
msg-auth          31/tcp     # MSG Authentication
msg-auth          31/udp     # MSG Authentication
dsp               33/tcp     # Display Support Protocol
dsp               33/udp     # Display Support Protocol
priv-print        35/tcp     # any private printer server
priv-print        35/udp     # any private printer server
time              37/tcp     # timserver
time              37/udp     # timserver
rap               38/tcp     # Route Access Protocol
rap               38/udp     # Route Access Protocol
rlp               39/tcp     # Resource Location Protocol
rlp               39/udp     # Resource Location Protocol
graphics          41/tcp     #
graphics          41/udp     #
nameserver        42/tcp     # Host Name Server
nameserver        42/udp     # Host Name Server
whois             43/tcp     # nicname
shois             43/udp     # nicname
mpm-flags         44/tcp     # MPM FLAGS Protocol
mpm-flags         44/udp     # MPM FLAGS Protocol
mpm               45/tcp     # Message Processing Module [recv]
mpm               45/udp     # Message Processing Module [recv]
mpm-snd           46/tcp     # MPM [default send]
mpm-snd           46/udp     # MPM [default send]
ni-ftp            47/tcp     # NI FTP
ni-ftp            47/udp     # NI FTP
auditd            48/tcp     # Digital Audit Daemon
auditd            48/udp     # Digital Audit Daemon
tacacs            49/tcp     # Login Host Protocol (TACACS)
tacacs            49/udp     # Login Host Protocol (TACACS)
re-mail-ck        50/tcp     # Remote Mail Checking Protocol
re-mail-ck        50/udp     # Remote Mail Checking Protocol
la-maint          51/tcp     # IMP Logical Address Maintenance
la-maint          51/udp     # IMP Logical Address Maintenance
xns-time          52/tcp     # XNS Time Protocol
xns-time          52/udp     # XNS Time Protocol
domain            53/tcp     # Domain Name Server
domain            53/udp     # Domain Name Server
xns-ch            54/tcp     # XNS Clearinghouse
xns-ch            54/udp     # XNS Clearinghouse
isi-gl            55/tcp     # ISI Graphics Language
isi-gl            55/udp     # ISI Graphics Language
xns-auth          56/tcp     # XNS Authentication
xns-auth          56/udp     # XNS Authentication
priv-term         57/tcp     # any private terminal access
priv-term         57/udp     # any private terminal access
xns-mail          58/tcp     # XNS Mail
xns-mail          58/udp     # XNS Mail
priv-file         59/tcp     # any private file service
priv-file         59/udp     # any private file service
ni-mail           61/tcp     # NI MAIL
ni-mail           61/udp     # NI MAIL
acas              62/tcp     # ACA Services
acas              62/udp     # ACA Services
via-ftp           63/tcp     # VIA Systems - FTP & whois++
via-ftp           63/udp     # VIA Systems - FTP & whois++
covia             64/tcp     # Communications Integrator (CI)
covia             64/udp     # Communications Integrator (CI)
tacacs-ds         65/tcp     # TACACS-Database Service
tacacs-ds         65/udp     # TACACS-Database Service
sql*net           66/tcp     # Oracle SQL*NET
sql*net           66/udp     # Oracle SQL*NET
bootps            67/tcp     # Bootstrap Protocol Server
bootps            67/udp     # Bootstrap Protocol Server
bootpc            68/tcp     # Bootstrap Protocol Client
bootpc            68/udp     # Bootstrap Protocol Client
tftp              69/tcp     # Trivial File Transfer
tftp              69/udp     # Trivial File Transfer
gopher            70/tcp     #
gopher            70/udp     #
netrjs-1          71/tcp     # Remote Job Service
netrjs-1          71/udp     # Remote Job Service
netrjs-2          72/tcp     # Remote Job Service
netrjs-2          72/udp     # Remote Job Service
netrjs-3          73/tcp     # Remote Job Service
netrjs-3          73/udp     # Remote Job Service
netrjs-4          74/tcp     # Remote Job Service
netrjs-4          74/udp     # Remote Job Service
priv-dial         75/tcp     # any private dial out service
priv-dial         75/udp     # any private dial out service
deos              76/tcp     # Distributed External Object Store
deos              76/udp     # Distributed External Object Store
priv-rje          77/tcp     # any private RJE service, netrjs
priv-rje          77/udp     # any private RJE service, netjrs
vettcp            78/tcp     #
vettcp            78/udp     #
finger            79/tcp     #
finger            79/udp     #
http              80/tcp     # World Wide Web HTTP
http              80/udp     # World Wide Web HTTP
hosts2-ns         81/tcp     # HOSTS2 Name Server
hosts2-ns         81/udp     # HOSTS2 Name Server
xfer              82/tcp     # XFER Utility
xfer              82/udp     # XFER Utility
mit-ml-dev        83/tcp     # MIT ML Device
mit-ml-dev        83/udp     # MIT ML Device
ctf               84/tcp     # Common Trace Facility
ctf               84/udp     # Common Trace Facility
mit-ml-dev        85/tcp     # MIT ML Device
mit-ml-dev        85/udp     # MIT ML Device
mfcobol           86/tcp     # Micro Focus Cobol
mfcobol           86/udp     # Micro Focus Cobol
priv-term-l       87/tcp     # any private terminal link, ttylink
kerberos-sec      88/tcp     # Kerberos (v5)
kerberos-sec      88/udp     # Kerberos (v5)
su-mit-tg         89/tcp     # SU/MIT Telnet Gateway
su-mit-tg         89/udp     # SU/MIT Telnet Gateway
dnsix             90/tcp     # DNSIX Securit Attribute Token Map
dnsix             90/udp     # DNSIX Securit Attribute Token Map
mit-dov           91/tcp     # MIT Dover Spooler
mit-dov           91/udp     # MIT Dover Spooler
npp               92/tcp     # Network Printing Protocol
npp               92/udp     # Network Printing Protocol
dcp               93/tcp     # Device Control Protocol
dcp               93/udp     # Device Control Protocol
objcall           94/tcp     # Tivoli Object Dispatcher
objcall           94/udp     # Tivoli Object Dispatcher
supdup            95/tcp     # BSD supdupd(8)
supdup            95/udp     #
dixie             96/tcp     # DIXIE Protocol Specification
dixie             96/udp     # DIXIE Protocol Specification
swift-rvf         97/tcp     # Swift Remote Virtural File Protocol
swift-rvf         97/udp     # Swift Remote Virtural File Protocol
linuxconf         98/tcp     # linuxconf
tacnews           98/udp     # TAC News
metagram          99/tcp     # Metagram Relay
metagram          99/udp     # Metagram Relay
newacct           100/tcp    # [unauthorized use]
hostname          101/tcp    # hostnames NIC Host Name Server
hostname          101/udp    # hostnames NIC Host Name Server
iso-tsap          102/tcp    # tsap ISO-TSAP Class 0
iso-tsap          102/udp    # tsap ISO-TSAP Class 0
gppitnp           103/tcp    # Genesis Point-to-Point Trans Net, or x400 ISO Email
gppitnp           103/udp    # Genesis Point-to-Point Trans Net
acr-nema          104/tcp    # ACR-NEMA Digital Imag. & Comm. 300
acr-nema          104/udp    # ACR-NEMA Digital Imag. & Comm. 300
csnet-ns          105/tcp    # Mailbox Name Nameserver
csnet-ns          105/udp    # Mailbox Name Nameserver
pop3pw            106/tcp    # Eudora compatible PW changer
3com-tsmux        106/udp    #
rtelnet           107/tcp    # Remote Telnet
rtelnet           107/udp    # Remote Telnet Service
snagas            108/tcp    # SNA Gateway Access Server
snagas            108/udp    # SNA Gateway Access Server
pop-2             109/tcp    # PostOffice V.2
pop-2             109/udp    # PostOffice V.2
pop-3             110/tcp    # PostOffice V.3
pop-3             110/udp    # PostOffice V.3
sunrpc            111/tcp    # portmapper, rpcbind
sunrpc            111/udp    # portmapper, rpcbind
mcidas            112/tcp    # McIDAS Data Transmission Protocol
mcidas            112/udp    # McIDAS Data Transmission Protocol
auth              113/tcp    # ident, tap, Authentication Service
auth              113/udp    # ident, tap, Authentication Service
audionews         114/tcp    # Audio News Multicast
audionews         114/udp    # Audio News Multicast
sftp              115/tcp    # Simple File Transfer Protocol
sftp              115/udp    # Simple File Transfer Protocol
ansanotify        116/tcp    # ANSA REX Notify
ansanotify        116/udp    # ANSA REX Notify
uucp-path         117/tcp    # UUCP Path Service
uucp-path         117/udp    # UUCP Path Service
sqlserv           118/tcp    # SQL Services
sqlserv           118/udp    # SQL Services
nntp              119/tcp    # Network News Transfer Protocol
nntp              119/udp    # Network News Transfer Protocol
cfdptkt           120/tcp    #
cfdptkt           120/udp    #
erpc              121/tcp    # Encore Expedited Remote Pro.Call
erpc              121/udp    # Encore Expedited Remote Pro.Call
smakynet          122/tcp    #
smakynet          122/udp    #
ntp               123/tcp    # Network Time Protocol
ntp               123/udp    # Network Time Protocol
ansatrader        124/tcp    # ANSA REX Trader
ansatrader        124/udp    # ANSA REX Trader
locus-map         125/tcp    # Locus PC-Interface Net Map Ser
locus-map         125/udp    # Locus PC-Interface Net Map Ser
unitary           126/tcp    # Unisys Unitary Login
unitary           126/udp    # Unisys Unitary Login
locus-con         127/tcp    # Locus PC-Interface Conn Server
locus-con         127/udp    # Locus PC-Interface Conn Server
gss-xlicen        128/tcp    # GSS X License Verification
gss-xlicen        128/udp    # GSS X License Verification
pwdgen            129/tcp    # Password Generator Protocol
pwdgen            129/udp    # Password Generator Protocol
cisco-fna         130/tcp    # cisco FNATIVE
cisco-fna         130/udp    # cisco FNATIVE
cisco-tna         131/tcp    # cisco TNATIVE
cisco-tna         131/udp    # cisco TNATIVE
cisco-sys         132/tcp    # cisco SYSMAINT
cisco-sys         132/udp    # cisco SYSMAINT
statsrv           133/tcp    # Statistics Service
statsrv           133/udp    # Statistics Service
ingres-net        134/tcp    # INGRES-NET Service
ingres-net        134/udp    # INGRES-NET Service
loc-srv           135/tcp    # NCS local location broker
loc-srv           135/udp    # Location Service
profile           136/tcp    # PROFILE Naming System
profile           136/udp    # PROFILE Naming System
netbios-ns        137/tcp    # NETBIOS Name Service
netbios-ns        137/udp    # NETBIOS Name Service
netbios-dgm       138/tcp    # NETBIOS Datagram Service
netbios-dgm       138/udp    # NETBIOS Datagram Service
netbios-ssn       139/tcp    # NETBIOS Session Service
netbios-ssn       139/udp    # NETBIOS Session Service
emfis-data        140/tcp    # EMFIS Data Service
emfis-data        140/udp    # EMFIS Data Service
emfis-cntl        141/tcp    # EMFIS Control Service
emfis-cntl        141/udp    # EMFIS Control Service
bl-idm            142/tcp    # Britton-Lee IDM
bl-idm            142/udp    # Britton-Lee IDM
imap2             143/tcp    # Interim Mail Access Protocol v2
imap2             143/udp    # Interim Mail Access Protocol v2
news              144/tcp    # NewS window system
news              144/udp    # NewS window system
uaac              145/tcp    # UAAC Protocol
uaac              145/udp    # UAAC Protocol
iso-tp0           146/tcp    #
iso-tp0           146/udp    #
iso-ip            147/tcp    #
iso-ip            147/udp    #
cronus            148/tcp    # CRONUS-SUPPORT
cronus            148/udp    # CRONUS-SUPPORT
aed-512           149/tcp    # AED 512 Emulation Service
aed-512           149/udp    # AED 512 Emulation Service
sql-net           150/tcp    #
sql-net           150/udp    #
hems              151/tcp    #
hems              151/udp    #
bftp              152/tcp    # Background File Transfer Program
bftp              152/udp    # Background File Transfer Program
sgmp              153/tcp    #
sgmp              153/udp    #
netsc-prod        154/tcp    #
netsc-prod        154/udp    #
netsc-dev         155/tcp    #
netsc-dev         155/udp    #
sqlsrv            156/tcp    # SQL Service
sqlsrv            156/udp    # SQL Service
knet-cmp          157/tcp    # KNET/VM Command/Message Protocol
knet-cmp          157/udp    # KNET/VM Command/Message Protocol
pcmail-srv        158/tcp    # PCMail Server
pcmail-srv        158/udp    # PCMail Server
nss-routing       159/tcp    #
nss-routing       159/udp    #
sgmp-traps        160/tcp    #
sgmp-traps        160/udp    #
snmp              161/tcp    #
snmp              161/udp    # Simple Net Mgmt Proto
snmptrap          162/tcp    # snmp-trap
snmptrap          162/udp    # snmp-trap
cmip-man          163/tcp    # CMIP/TCP Manager
cmip-man          163/udp    # CMIP/TCP Manager
cmip-agent        164/tcp    # CMIP/TCP Agent
smip-agent        164/udp    # CMIP/TCP Agent
xns-courier       165/tcp    # Xerox
xns-courier       165/udp    # Xerox
s-net             166/tcp    # Sirius Systems
s-net             166/udp    # Sirius Systems
namp              167/tcp    #
namp              167/udp    #
rsvd              168/tcp    #
rsvd              168/udp    #
send              169/tcp    #
send              169/udp    #
print-srv         170/tcp    # Network PostScript
print-srv         170/udp    # Network PostScript
multiplex         171/tcp    # Network Innovations Multiplex
multiplex         171/udp    # Network Innovations Multiplex
cl-1              172/tcp    # Network Innovations CL/1
cl-1              172/udp    # Network Innovations CL/1
xyplex-mux        173/tcp    #
xyplex-mux        173/udp    #
mailq             174/tcp    #
mailq             174/udp    #
vmnet             175/tcp    #
vmnet             175/udp    #
genrad-mux        176/tcp    #
genrad-mux        176/udp    #
xdmcp             177/tcp    # X Display Mgr. Control Proto
xdmcp             177/udp    # X Display Manager Control Protocol
nextstep          178/tcp    # NextStep Window Server
nextstep          178/udp    # NextStep Window Server
bgp               179/tcp    # Border Gateway Protocol
bgp               179/udp    # Border Gateway Protocol
ris               180/tcp    # Intergraph
ris               180/udp    # Intergraph
unify             181/tcp    #
unify             181/udp    #
audit             182/tcp    # Unisys Audit SITP
audit             182/udp    # Unisys Audit SITP
ocbinder          183/tcp    #
ocbinder          183/udp    #
ocserver          184/tcp    #
ocserver          184/udp    #
remote-kis        185/tcp    #
remote-kis        185/udp    #
kis               186/tcp    # KIS Protocol
kis               186/udp    # KIS Protocol
aci               187/tcp    # Application Communication Interface
aci               187/udp    # Application Communication Interface
mumps             188/tcp    # Plus Five's MUMPS
mumps             188/udp    # Plus Five's MUMPS
qft               189/tcp    # Queued File Transport
qft               189/udp    # Queued File Transport
gacp              190/tcp    # Gateway Access Control Protocol
cacp              190/udp    # Gateway Access Control Protocol
prospero          191/tcp    # Prospero Directory Service
prospero          191/udp    # Prospero Directory Service
osu-nms           192/tcp    # OSU Network Monitoring System
osu-nms           192/udp    # OSU Network Monitoring System
srmp              193/tcp    # Spider Remote Monitoring Protocol
srmp              193/udp    # Spider Remote Monitoring Protocol
irc               194/tcp    # Internet Relay Chat
irc               194/udp    # Internet Relay Chat Protocol
dn6-nlm-aud       195/tcp    # DNSIX Network Level Module Audit
dn6-nlm-aud       195/udp    # DNSIX Network Level Module Audit
dn6-smm-red       196/tcp    # DNSIX Session Mgt Module Audit Redir
dn6-smm-red       196/udp    # DNSIX Session Mgt Module Audit Redir
dls               197/tcp    # Directory Location Service
dls               197/udp    # Directory Location Service
dls-mon           198/tcp    # Directory Location Service Monitor
dls-mon           198/udp    # Directory Location Service Monitor
smux              199/tcp    # SNMP Unix Multiplexer
smux              199/udp    #
src               200/tcp    # IBM System Resource Controller
src               200/udp    # IBM System Resource Controller
at-rtmp           201/tcp    # AppleTalk Routing Maintenance
at-rtmp           201/udp    # AppleTalk Routing Maintenance
at-nbp            202/tcp    # AppleTalk Name Binding
at-nbp            202/udp    # AppleTalk Name Binding
at-3              203/tcp    # AppleTalk Unused
at-3              203/udp    # AppleTalk Unused
at-echo           204/tcp    # AppleTalk Echo
at-echo           204/udp    # AppleTalk Echo
at-5              205/tcp    # AppleTalk Unused
at-5              205/udp    # AppleTalk Unused
at-zis            206/tcp    # AppleTalk Zone Information
at-zis            206/udp    # AppleTalk Zone Information
at-7              207/tcp    # AppleTalk Unused
at-7              207/udp    # AppleTalk Unused
at-8              208/tcp    # AppleTalk Unused
at-8              208/udp    # AppleTalk Unused
tam               209/tcp    # Trivial Authenticated Mail Protocol
tam               209/udp    # Trivial Authenticated Mail Protocol
z39.50            210/tcp    # wais, ANSI Z39.50
z39.50            210/udp    # wais, ANSI Z39.50
914c-g            211/tcp    # Texas Instruments 914C/G Terminal
914c-g            211/udp    # Texas Instruments 914C/G Terminal
anet              212/tcp    # ATEXSSTR
anet              212/udp    # ATEXSSTR
ipx               213/tcp    #
ipx               213/udp    #
vmpwscs           214/tcp    #
vmpwscs           214/udp    #
softpc            215/tcp    # Insignia Solutions
softpc            215/udp    # Insignia Solutions
atls              216/tcp    # Access Technology License Server
atls              216/udp    # Access Technology License Server
dbase             217/tcp    # dBASE Unix
dbase             217/udp    # dBASE Unix
mpp               218/tcp    # Netix Message Posting Protocol
mpp               218/udp    # Netix Message Posting Protocol
uarps             219/tcp    # Unisys ARPs
uarps             219/udp    # Unisys ARPs
imap3             220/tcp    # Interactive Mail Access Protocol v3
imap3             220/udp    # Interactive Mail Access Protocol v3
fln-spx           221/tcp    # Berkeley rlogind with SPX auth
fln-spx           221/udp    # Berkeley rlogind with SPX auth
rsh-spx           222/tcp    # Berkeley rshd with SPX auth
rsh-spx           222/udp    # Berkeley rshd with SPX auth
cdc               223/tcp    # Certificate Distribution Center
cdc               223/udp    # Certificate Distribution Center
direct            242/tcp    #
direct            242/udp    #
sur-meas          243/tcp    # Survey Measurement
sur-meas          243/udp    # Survey Measurement
dayna             244/tcp    #
dayna             244/udp    #
link              245/tcp    #
link              245/udp    #
dsp3270           246/tcp    # Display Systems Protocol
dsp3270           246/udp    # Display Systems Protocol
subntbcst_tftp    247/tcp    #
subntbcst_tftp    247/udp    #
bhfhs             248/tcp    #
bhfhs             248/udp    #
rap               256/tcp    #
rap               256/udp    #
set               257/tcp    # secure electronic transaction
set               257/udp    # secure electronic transaction
yak-chat          258/tcp    # yak winsock personal chat
yak-chat          258/udp    # yak winsock personal chat
esro-gen          259/tcp    # efficient short remote operations
esro-gen          259/udp    # efficient short remote operations
openport          260/tcp    #
openport          260/udp    #
nsiiops           261/tcp    # iiop name service over tls/ssl
nsiiops           261/udp    # iiop name service over tls/ssl
arcisdms          262/tcp    #
arcisdms          262/udp    #
hdap              263/tcp    #
hdap              263/udp    #
bgmp              264/tcp    #
bgmp              264/udp    #
http-mgmt         280/tcp    #
http-mgmt         280/udp    #
personal-link     281/tcp    #
personal-link     281/udp    #
cableport-ax      282/tcp    # cable port a/x
cableport-ax      282/udp    # cable port a/x
novastorbakcup    308/tcp    # novastor backup
novastorbakcup    308/udp    # novastor backup
entrusttime       309/tcp    #
entrusttime       309/udp    #
bhmds             310/tcp    #
bhmds             310/udp    #
asip-webadmin     311/tcp    # appleshare ip webadmin
asip-webadmin     311/udp    # appleshare ip webadmin
vslmp             312/tcp    #
vslmp             312/udp    #
magenta-logic     313/tcp    #
magenta-logic     313/udp    #
opalis-robot      314/tcp    #
opalis-robot      314/udp    #
dpsi              315/tcp    #
dpsi              315/udp    #
decauth           316/tcp    #
decauth           316/udp    #
zannet            317/tcp    #
zannet            317/udp    #
pip               321/tcp    #
pip               321/udp    #
pdap              344/tcp    # Prospero Data Access Protocol
pdap              344/udp    # Prospero Data Access Protocol
pawserv           345/tcp    # Perf Analysis Workbench
pawserv           345/udp    # Perf Analysis Workbench
zserv             346/tcp    # Zebra server
zserv             346/udp    # Zebra server
fatserv           347/tcp    # Fatmen Server
fatserv           347/udp    # Fatmen Server
csi-sgwp          348/tcp    # Cabletron Management Protocol
csi-sgwp          348/udp    # Cabletron Management Protocol
mftp              349/tcp    #
mftp              349/udp    #
matip-type-a      350/tcp    # MATIP Type A
matip-type-a      350/udp    #
matip-type-b      351/tcp    # MATIP Type B or bhoetty
matip-type-b      351/udp    # MATIP Type B or bhoetty
dtag-ste-sb       352/tcp    # DTAG, or bhoedap4
dtag-ste-sb       352/udp    # DTAG, or bhoedap4
ndsauth           353/tcp    #
ndsauth           353/udp    #
bh611             354/tcp    #
bh611             354/udp    #
datex-asn         355/tcp    #
datex-asn         355/udp    #
cloanto-net-1     356/tcp    # Cloanto Net 1
cloanto-net-1     356/udp    #
bhevent           357/tcp    #
bhevent           357/udp    #
shrinkwrap        358/tcp    #
shrinkwrap        358/udp    #
tenebris_nts      359/tcp    # Tenebris Network Trace Service
tenebris_nts      359/udp    # Tenebris Network Trace Service
scoi2odialog      360/tcp    #
scoi2odialog      360/udp    #
semantix          361/tcp    #
semantix          361/udp    #
srssend           362/tcp    # SRS Send
srssend           362/udp    # SRS Send
rsvp_tunnel       363/tcp    #
rsvp_tunnel       363/udp    #
aurora-cmgr       364/tcp    #
aurora-cmgr       364/udp    #
dtk               365/tcp    # Deception Tool Kit (lame -- see www.all.net)
dtk               365/udp    # Deception Tool Kit (lame -- see www.all.net)
odmr              366/tcp    #
odmr              366/udp    #
mortgageware      367/tcp    #
mortgageware      367/udp    #
qbikgdp           368/tcp    #
qbikgdp           368/udp    #
rpc2portmap       369/tcp    #
rpc2portmap       369/udp    #
codaauth2         370/tcp    #
codaauth2         370/udp    #
clearcase         371/tcp    #
clearcase         371/udp    #
ulistserv         372/tcp    # Unix Listserv
ulistserv         372/udp    # Unix Listserv
legent-1          373/tcp    # Legent Corporation (now Computer Associates Intl.)
legent-1          373/udp    # Legent Corporation (now Computer Associates Intl.)
legent-2          374/tcp    # Legent Corporation (now Computer Associates Intl.)
legent-2          374/udp    # Legent Corporation (now Computer Associates Intl.)
hassle            375/tcp    #
hassle            375/udp    #
nip               376/tcp    # Amiga Envoy Network Inquiry Proto
nip               376/udp    # Amiga Envoy Network Inquiry Proto
tnETOS            377/tcp    # NEC Corporation
tnETOS            377/udp    # NEC Corporation
dsETOS            378/tcp    # NEC Corporation
dsETOS            378/udp    # NEC Corporation
is99c             379/tcp    # TIA/EIA/IS-99 modem client
is99c             379/udp    # TIA/EIA/IS-99 modem client
is99s             380/tcp    # TIA/EIA/IS-99 modem server
is99s             380/udp    # TIA/EIA/IS-99 modem server
hp-collector      381/tcp    # hp performance data collector
hp-collector      381/udp    # hp performance data collector
hp-managed-node   382/tcp    # hp performance data managed node
hp-managed-node   382/udp    # hp performance data managed node
hp-alarm-mgr      383/tcp    # hp performance data alarm manager
hp-alarm-mgr      383/udp    # hp performance data alarm manager
arns              384/tcp    # A Remote Network Server System
arns              384/udp    # A Remote Network Server System
ibm-app           385/tcp    # IBM Application
ibm-app           385/udp    # IBM Application
asa               386/tcp    # ASA Message Router Object Def.
asa               386/udp    # ASA Message Router Object Def.
aurp              387/tcp    # Appletalk Update-Based Routing Pro.
aurp              387/udp    # Appletalk Update-Based Routing Pro.
unidata-ldm       388/tcp    # Unidata LDM Version 4
unidata-ldm       388/udp    # Unidata LDM Version 4
ldap              389/tcp    # Lightweight Directory Access Protocol
ldap              389/udp    # Lightweight Directory Access Protocol
uis               390/tcp    #
uis               390/udp    #
synotics-relay    391/tcp    # SynOptics SNMP Relay Port
synotics-relay    391/udp    # SynOptics SNMP Relay Port
synotics-broker   392/tcp    # SynOptics Port Broker Port
synotics-broker   392/udp    # SynOptics Port Broker Port
dis               393/tcp    # Data Interpretation System
dis               393/udp    # Data Interpretation System
embl-ndt          394/tcp    # EMBL Nucleic Data Transfer
embl-ndt          394/udp    # EMBL Nucleic Data Transfer
netcp             395/tcp    # NETscout Control Protocol
netcp             395/udp    # NETscout Control Protocol
netware-ip        396/tcp    # Novell Netware over IP
netware-ip        396/udp    # Novell Netware over IP
mptn              397/tcp    # Multi Protocol Trans. Net.
mptn              397/udp    # Multi Protocol Trans. Net.
kryptolan         398/tcp    #
kryptolan         398/udp    #
iso-tsap-c2       399/tcp    # ISO-TSAP Class 2
iso-tsap-c2       399/udp    # ISO-TSAP Class 2
work-sol          400/tcp    # Workstation Solutions
work-sol          400/udp    # Workstation Solutions
ups               401/tcp    # Uninterruptible Power Supply
ups               401/udp    # Uninterruptible Power Supply
genie             402/tcp    # Genie Protocol
genie             402/udp    # Genie Protocol
decap             403/tcp    #
decap             403/udp    #
nced              404/tcp    #
nced              404/udp    #
ncld              405/tcp    #
ncld              405/udp    #
imsp              406/tcp    # Interactive Mail Support Protocol
imsp              406/udp    # Interactive Mail Support Protocol
timbuktu          407/tcp    #
timbuktu          407/udp    #
prm-sm            408/tcp    # Prospero Resource Manager Sys. Man.
prm-sm            408/udp    # Prospero Resource Manager Sys. Man.
prm-nm            409/tcp    # Prospero Resource Manager Node Man.
prm-nm            409/udp    # Prospero Resource Manager Node Man.
decladebug        410/tcp    # DECLadebug Remote Debug Protocol
decladebug        410/udp    # DECLadebug Remote Debug Protocol
rmt               411/tcp    # Remote MT Protocol
rmt               411/udp    # Remote MT Protocol
synoptics-trap    412/tcp    # Trap Convention Port
synoptics-trap    412/udp    # Trap Convention Port
smsp              413/tcp    #
smsp              413/udp    #
infoseek          414/tcp    #
infoseek          414/udp    #
bnet              415/tcp    #
bnet              415/udp    #
silverplatter     416/tcp    #
silverplatter     416/udp    #
onmux             417/tcp    #
onmux             417/udp    #
hyper-g           418/tcp    #
hyper-g           418/udp    #
ariel1            419/tcp    #
ariel1            419/udp    #
smpte             420/tcp    #
smpte             420/udp    #
ariel2            421/tcp    #
ariel2            421/udp    #
ariel3            422/tcp    #
ariel3            422/udp    #
opc-job-start     423/tcp    # IBM Operations Planning and Control Start
opc-job-start     423/udp    # IBM Operations Planning and Control Start
opc-job-track     424/tcp    # IBM Operations Planning and Control Track
opc-job-track     424/udp    # IBM Operations Planning and Control Track
icad-el           425/tcp    #
icad-el           425/udp    #
smartsdp          426/tcp    #
smartsdp          426/udp    #
svrloc            427/tcp    # Server Location
svrloc            427/udp    # Server Location
ocs_cmu           428/tcp    #
ocs_cmu           428/udp    #
ocs_amu           429/tcp    #
ocs_amu           429/udp    #
utmpsd            430/tcp    #
utmpsd            430/udp    #
utmpcd            431/tcp    #
utmpcd            431/udp    #
iasd              432/tcp    #
iasd              432/udp    #
nnsp              433/tcp    # Usenet, Network News Transfer
nnsp              433/udp    #
mobileip-agent    434/tcp    #
mobileip-agent    434/udp    #
mobilip-mn        435/tcp    #
mobilip-mn        435/udp    #
dna-cml           436/tcp    #
dna-cml           436/udp    #
comscm            437/tcp    #
comscm            437/udp    #
dsfgw             438/tcp    #
dsfgw             438/udp    #
dasp              439/tcp    #
dasp              439/udp    #
sgcp              440/tcp    #
sgcp              440/udp    #
decvms-sysmgt     441/tcp    #
decvms-sysmgt     441/udp    #
cvc_hostd         442/tcp    #
cvc_hostd         442/udp    #
https             443/tcp    # secure http (SSL)
https             443/udp    #
snpp              444/tcp    # Simple Network Paging Protocol
snpp              444/udp    # Simple Network Paging Protocol
microsoft-ds      445/tcp    #
microsoft-ds      445/udp    #
ddm-rdb           446/tcp    #
ddm-rdb           446/udp    #
ddm-dfm           447/tcp    #
ddm-dfm           447/udp    #
ddm-ssl           448/tcp    # ddm-byte
ddm-ssl           448/udp    # ddm-byte
as-servermap      449/tcp    # AS Server Mapper
as-servermap      449/udp    # AS Server Mapper
tserver           450/tcp    #
tserver           450/udp    #
sfs-smp-net       451/tcp    # Cray Network Semaphore server
sfs-smp-net       451/udp    # Cray Network Semaphore server
sfs-config        452/tcp    # Cray SFS config server
sfs-config        452/udp    # Cray SFS config server
creativeserver    453/tcp    #
creativeserver    453/udp    #
contentserver     454/tcp    #
contentserver     454/udp    #
creativepartnr    455/tcp    #
creativepartnr    455/udp    #
macon-tcp         456/tcp    #
macon-udp         456/udp    #
scohelp           457/tcp    #
scohelp           457/udp    #
appleqtc          458/tcp    # apple quick time
appleqtc          458/udp    # apple quick time
ampr-rcmd         459/tcp    #
ampr-rcmd         459/udp    #
skronk            460/tcp    #
skronk            460/udp    #
datasurfsrv       461/tcp    #
datasurfsrv       461/udp    #
datasurfsrvsec    462/tcp    #
datasurfsrvsec    462/udp    #
alpes             463/tcp    #
alpes             463/udp    #
kpasswd5          464/tcp    # Kerberos (v5)
kpasswd5          464/udp    # Kerberos (v5)
smtps             465/tcp    # smtp protocol over TLS/SSL (was ssmtp)
smtps             465/udp    # smtp protocol over TLS/SSL (was ssmtp)
digital-vrc       466/tcp    #
digital-vrc       466/udp    #
mylex-mapd        467/tcp    #
mylex-mapd        467/udp    #
photuris          468/tcp    # Photuris Key Management
photuris          468/udp    #
rcp               469/tcp    # Radio Control Protocol
rcp               469/udp    # Radio Control Protocol
scx-proxy         470/tcp    #
scx-proxy         470/udp    #
mondex            471/tcp    #
mondex            471/udp    #
ljk-login         472/tcp    #
ljk-login         472/udp    #
hybrid-pop        473/tcp    #
hybrid-pop        473/udp    #
tn-tl-w1          474/tcp    #
tn-tl-w2          474/udp    #
tcpnethaspsrv     475/tcp    #
tcpnethaspsrv     475/udp    #
tn-tl-fd1         476/tcp    #
tn-tl-fd1         476/udp    #
ss7ns             477/tcp    #
ss7ns             477/udp    #
spsc              478/tcp    #
spsc              478/udp    #
iafserver         479/tcp    #
iafserver         479/udp    #
loadsrv           480/tcp    #
iafdbase          480/udp    #
dvs               481/tcp    #
ph                481/udp    #
bgs-nsi           482/tcp    #
xlog              482/udp    #
ulpnet            483/tcp    #
ulpnet            483/udp    #
integra-sme       484/tcp    # Integra Software Management Environment
integra-sme       484/udp    # Integra Software Management Environment
powerburst        485/tcp    # Air Soft Power Burst
powerburst        485/udp    # Air Soft Power Burst
sstats            486/tcp    #
avian             486/udp    #
saft              487/tcp    # saft Simple Asynchronous File Transfer
saft              487/udp    # saft Simple Asynchronous File Transfer
gss-http          488/tcp    #
gss-http          488/udp    #
nest-protocol     489/tcp    #
nest-protocol     489/udp    #
micom-pfs         490/tcp    #
micom-pfs         490/udp    #
go-login          491/tcp    #
go-login          491/udp    #
ticf-1            492/tcp    # Transport Independent Convergence for FNA
ticf-1            492/udp    # Transport Independent Convergence for FNA
ticf-2            493/tcp    # Transport Independent Convergence for FNA
ticf-2            493/udp    # Transport Independent Convergence for FNA
pov-ray           494/tcp    #
pov-ray           494/udp    #
intecourier       495/tcp    #
intecourier       495/udp    #
pim-rp-disc       496/tcp    #
pim-rp-disc       496/udp    #
dantz             497/tcp    #
dantz             497/udp    #
siam              498/tcp    #
siam              498/udp    #
iso-ill           499/tcp    # ISO ILL Protocol
iso-ill           499/udp    # ISO ILL Protocol
isakmp            500/tcp    #
isakmp            500/udp    #

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