Dell PowerEdge M420 Configuration Manual page 924

Table 33-2 shows the most common protocols and their UDP port numbers
and names that are relayed.
Table 33-2. UDP Port Allocations
UDP Port Number Acronym
7
11
15
17
19
20
21
37
42
43
53
69
111
123
137
138
139
161
162
513
514
525
924
Configuring L2 and L3 Relay Features
Echo
SysStat
NetStat
Quote
CHARGEN
FTP-data
FTP
Time
NAMESERVER
NICNAME
DOMAIN
TFTP
SUNRPC
NTP
NetBiosNameService
NetBiosDatagramService
NetBios
SNMP
SNMP-trap
who
syslog
timed
Application
Echo
Active User
NetStat
Quote of the day
Character Generator
FTP Data
FTP
Time
Host Name Server
Who is
Domain Name Server
Trivial File Transfer
Sun Microsystems Rpc
Network Time
NT Server to Station Connections
NT Server to Station Connections
SessionServiceNT Server to Station
Connections
Simple Network Management
Simple Network Management Traps
Unix Rwho Daemon
System Log
Time Daemon