Stealthed Ports (TCP/IP):-
I’ve always wondered what this means and in fact found out some time ago that all "stealthier" ports are. They are ports that do not respond to anything thrown at them by port scans or the like. This does not mean they can’t be accessed.
Go here for a list of ports accessed by some well-known programmes like Napster, Msn messenger, Kaza etc use: -
http://www.practicallynetworked.com/sharing/app_port_list.htm
As you will observe there are many ports that can be accessed under this protocol.
In relation to Internet usage the following ports can be used: -
Assigned Internet Protocol Numbers
Dec Keyword Protocol
0 HOPOPT IPv6 Hop-by-Hop Option
1 ICMP Internet Control Message
2 IGMP Internet Group Management
3 GGP Gateway-to-Gateway
4 IP IP in IP (encapsulation)
5 ST Stream
6 TCP Transmission Control
7 CBT CBT
8 EGP Exterior Gateway Protocol
9 IGP any private interior gateway [IANA]
(used by Cisco for their IGRP)
10 BBN-RCC-MON BBN RCC Monitoring
11 NVP-II Network Voice Protocol
12 PUP PUP
13 ARGUS ARGUS
14 EMCON EMCON
15 XNET Cross Net Debugger
16 CHAOS Chaos
17 UDP User Datagram [RFC768,JBP]
18 MUX Multiplexing [IEN90,JBP]
19 DCN-MEAS DCN Measurement Subsystems [DLM1]
20 HMP Host Monitoring [RFC869,RH6]
21 PRM Packet Radio Measurement [ZSU]
22 XNS-IDP XEROX NS IDP [ETHERNET,XEROX]
23 TRUNK-1 Trunk-1 [BWB6]
24 TRUNK-2 Trunk-2 [BWB6]
25 LEAF-1 Leaf-1 [BWB6]
26 LEAF-2 Leaf-2 [BWB6]
27 RDP Reliable Data Protocol [RFC908,RH6]
28 IRTP Internet Reliable Transaction [RFC938,TXM]
29 ISO-TP4 ISO Transport Protocol Class 4 [RFC905,RC77]
30 NETBLT Bulk Data Transfer Protocol [RFC969,DDC1]
31 MFE-NSP MFE Network Services Protocol [MFENET,BCH2]
32 MERIT-INP MERIT Internodal Protocol [HWB]
33 SEP Sequential Exchange Protocol [JC120]
34 3PC Third Party Connect Protocol [SAF3]
35 IDPR Inter-Domain Policy Routing Protocol [MXS1]
36 XTP XTP [GXC]
37 DDP Datagram Delivery Protocol [WXC]
38 IDPR-CMTP IDPR Control Message Transport roto
39 TP++ TP++ Transport Protocol [DXF]
40 IL IL Transport Protocol [Presotto]
41 IPv6 Ipv6 [Deering]
42 SDRP Source Demand Routing Protocol [DXE1]
43 IPv6-Route Routing Header for IPv6 [Deering]
44 IPv6-Frag Fragment Header for IPv6 [Deering]
45 IDRP Inter-Domain Routing Protocol [Sue Hares]
46 RSVP Reservation Protocol [Bob Braden]
47 GRE General Routing Encapsulation [Tony Li]
48 MHRP Mobile Host Routing Protocol[David Johnson]
49 BNA BNA [Gary Salamon]
50 ESP Encap Security Payload for IPv6 [RFC1827]
51 AH Authentication Header for IPv6 [RFC1826]
52 I-NLSP Integrated Net Layer Security TUBA [GLENN]
53 SWIPE IP with Encryption [JI6]
54 NARP NBMA Address Resolution Protocol [RFC1735]
55 MOBILE IP Mobility [Perkins]
56 TLSP Transport Layer Security Protocol [Oberg]
using Kryptonet key management
57 SKIP SKIP [Markson]
58 IPv6-ICMP ICMP for IPv6 [RFC1883]
59 IPv6-NoNxt No Next Header for IPv6 [RFC1883]
60 IPv6-Opts Destination Options for IPv6 [RFC1883]
61 any host internal protocol [IANA]
62 CFTP CFTP [CFTP,HCF2]
63 any local network [IANA]
64 SAT-EXPAK SATNET and Backroom EXPAK [SHB]
65 KRYPTOLAN Kryptolan [PXL1]
66 RVD MIT Remote Virtual Disk Protocol [MBG]
67 IPPC Internet Pluribus Packet Core [SHB]
68 any distributed file system [IANA]
69 SAT-MON SATNET Monitoring [SHB]
70 VISA VISA Protocol [GXT1]
71 IPCV Internet Packet Core Utility [SHB]
72 CPNX Computer Protocol Network Executive [DXM2]
73 CPHB Computer Protocol Heart Beat [DXM2]
74 WSN Wang Span Network [VXD]
75 PVP Packet Video Protocol [SC3]
76 BR-SAT-MON Backroom SATNET Monitoring [SHB]
77 SUN-ND SUN ND PROTOCOL-Temporary [WM3]
78 WB-MON WIDEBAND Monitoring [SHB]
79 WB-EXPAK WIDEBAND EXPAK [SHB]
80 ISO-IP ISO Internet Protocol [MTR]
81 VMTP VMTP [DRC3]
82 SECURE-VMTP SECURE-VMTP [DRC3]
83 VINES VINES [BXH]
84 TTP TTP [JXS]
85 NSFNET-IGP NSFNET-IGP [HWB]
86 DGP Dissimilar Gateway Protocol [DGP,ML109]
87 TCF TCF [GAL5]
88 EIGRP EIGRP [CISCO,GXS]
89 OSPFIGP OSPFIGP [RFC1583,JTM4]
90 Sprite-RPC Sprite RPC Protocol [SPRITE,BXW]
91 LARP Locus Address Resolution Protocol [BXH]
92 MTP Multicast Transport Protocol [SXA]
93 AX.25 AX.25 Frames [BK29]
94 IPIP IP-within-IP Encapsulation Protocol [JI6]
95 MICP Mobile Internetworking Control Pro. [JI6]
96 SCC-SP Semaphore Communications Sec. Pro.
97 ETHERIP Ethernet-within-IP Encapsulation [RFC3378]
98 ENCAP Encapsulation Header [RFC1241,RXB3]
99 any private encryption scheme [IANA]
100 GMTP GMTP [RXB5]
101 IFMP Ipsilon Flow Management Protocol [Hinden]
102 PNNI PNNI over IP [Callon]
103 PIM Protocol Independent Multicast [Farinacci]
104 ARIS ARIS [Feldman]
105 SCPS SCPS [Durst]
106 QNX QNX [Hunter]
107 A/N Active Networks [Braden]
108 IPComp IP Payload Compression Protocol [RFC2393]
109 SNP Sitara Networks Protocol [Sridhar]
110 Compaq-Peer Compaq Peer Protocol [Volpe]
111 IPX-in-IP IPX in IP [Lee]
112 VRRP Virtual Router Redundancy Protocol [Hinden]
113 PGM PGM Reliable Transport Protocol [Speakman]
114 any 0-hop protocol [IANA]
115 L2TP Layer Two Tunneling Protocol [Aboba]
116 DDX D-II Data Exchange (DDX) [Worley]
117 IATP Interactive Agent Transfer Protocol [Murphy]
118 STP Schedule Transfer Protocol [JMP]
119 SRP SpectraLink Radio Protocol [Hamilton]
120 UTI UTI [Lothberg]
121 SMP Simple Message Protocol [Ekblad]
122 SM SM [Crowcroft]
123 PTP Performance Transparency Protocol [Welzl]
124 ISIS over IPv4 [Przygienda]
125 FIRE [Partridge]
126 CRTP Combat Radio Transport Protocol [Sautter]
127 CRUDP Combat Radio User Datagram [Sautter]
128 SSCOPMCE [Waber]
129 IPLT [Hollbach]
130 SPS Secure Packet Shield [McIntosh]
131 PIPE Private IP Encapsulation within IP [Petri]
132 SCTP Stream Control Transmission Protocol [Stewart]
133 FC Fibre Channel [Rajagopal]
134 RSVP-E2E-IGNORE [RFC3175]
135-254 Unassigned [IANA]
255 Reserved [IANA]
As you can see things are more complicated than at first appears. As this is a long post I’ll end it now as I keep being thrown of this board.