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502 Configuring Routing
The IP Helper Global Configuration page contains the following fields:
•
UDP Relay Mode
— Use the menu to enable or disable the UDP relay mode. You must enable the
UDP Relay Mode to relay any other protocols for which an IP helper address has been configured. By
default UDP Relay Mode is Enabled.
•
UDP Destination Port
— Identifies destination UDP port number of UDP packets to be relayed.
Table 9-1 lists UDP Port allocations.
Table 9-1. UDP Port Allocations
UDP Port Number Acronym Application
7 Echo Echo
11 SysStat Active User
15 NetStat NetStat
17 Quote Quote of the day
19 CHARGEN Character Generator
20 FTP-data FTP Data
21 FTP FTP
37 Time Time
42 NAMESERVER Host Name Server
43 NICNAME Who is
53 DOMAIN Domain Name Server
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 SessionServiceNT Server to
Station Connections
161 SNMP Simple Network Management
162 SNMP-trap Simple Network Management
Tra ps
513 who Unix Rwho Daemon
514 syslog System Log
525 timed Time Daemon