Well-known Ports - Service to Ports Flashcards
(42 cards)
1
Q
FTP Data
A
TCP 20
2
Q
FTP Control
A
TCP 21
3
Q
SSH
A
TCP 22
4
Q
Telnet
A
TCP 23
5
Q
SMTP
A
TCP 25
6
Q
DNS
A
UDP/TCP 53
7
Q
DHCP Server
A
UDP 67
8
Q
DHCP Client
A
UDP 68
9
Q
TFTP
A
UDP 69
10
Q
HTTP
A
TCP 80
11
Q
POP3
A
TCP 110
12
Q
SNMP
A
UDP 161
13
Q
SSL
A
TCP 443
14
Q
Syslog
A
UDP 514
15
Q
RTP Voice/Video
A
UDP 16,384 to 32,767
16
Q
GRE
A
IP 47
17
Q
BGP
A
TCP 179
18
Q
TACACS+
A
TCP 49
19
Q
RIP
A
UDP 520
20
Q
OSPF
A
IP 89
21
Q
EIGRP
A
IP 88
22
Q
RADIUS Authentication (per RFC)
A
TCP/UDP 1812
23
Q
IGMPv2
A
IP 2
24
Q
PIM Control
A
IP 103
25
NTP
UDP 123
26
IPSec Authentication Header (AH)
IP 51
27
ISAKMP
UDP 500
28
ESP
IP 50
29
LISP Data Plane header
UDP 4341
30
LISP Control Plane i.e. Map Notify Msg
UDP 4342
31
VXLAN (IANA)
UDP 4789
32
VXLAN (Linux)
UDP 8472
33
RADIUS Accounting (Cisco)
TCP 1646
34
RADIUS Accounting (per RFC)
TCP/UDP 1813
35
Traceroute
IP 33434
36
RADIUS Authentication (Cisco)
TCP 1645
37
VRRPv3
IP 112
38
HSRPv1 and v2
UDP 1985
39
HSRP for IPV6
UDP 2029
40
Syslog over TLS
TCP 6514
41
TCP
IP 6
42
UDP
IP 17
