
Modular L3 Ethernet Switch User’s Guide
174
Note:
UDP Ports 137 and 138 are the most commonly used.
UDP Ports
UDP Port #
Acronym
Application
7 ECHO
Echo
11 USERS
Active
Users
13 DAYTIME
Daytime
15 NETSTAT
Netstat
17
QUOTE
Quote Of The Day
19 CHARGEN
Character
Generator
37 TIME
Time
42 NAMESERVER Host
Name
Server
43 NICNAME
Who
Is
53 DOMAIN
Domain
Name
Server
67
BOOTPS
Bootstrap Protocol Server
68
BOOTPC
Bootstrap Protocol Client
69
TFTP
Trivial File Transfer
111
SUNRPC
Sun Microsystems Rpc
123 NTP
Network
time
137
NetBiosNameService
NT Server to Station Connections
138
NetBiosDatagramService
NT Server to Station Connections
139
NetBios SessionService
NT Server to Station Connections
161 SNMP
Simple
Network
Management
162
SNMP
Simple Network Management Traps
513
Unix
Rwho
Daemon
514 Syslog
System
Log
525 Timed
Time
Daemon
Table 6- 1. UDP Ports
Source Interface –
The input IP interface that relays UDP packets. If this field is
255.255.255.255, UDP packets from all interfaces are relayed. The following
address ranges are invalid
•
0.0.0.0 to 0.255.255.255
•
127.0.0.0 to 127.255.255.255
Destination Addr. –
The IP interface that receives UDP frame relays. If this field
is 0.0.0.0, UDP packets are discarded. If this field is 255.255.255.255, UDP
packets are flooded to all IP interfaces.
An example of UDP Relay table use: To relay all UDP packets to interface 7.7.7.7
arriving at UDP port 138, while discarding those packets which come from the
Source IP Addresses 1.1.1.1 and 2.2.2.2, type in these table entries:
Port Source
Destination
138 1.1.1.1
0.0.0.0
Summary of Contents for DES-6300
Page 40: ...Modular L3 Ethernet Switch User s Guide 31 ...
Page 298: ......