Yealink SIP-T2 Series, Administrator'S Manual

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Troubleshooting
899
Source
Device
Source IP Source Port
Destination
Device
Destination IP
Destination Port
(Listening port)
Protocol Description of destination port
1024~65535 SNMP Server
IP address of
SNMP server
Determined by
destination
device.
UDP
SNMP protocol port, it is used
to communicate with SNMP
server.
68 DHCP Server
IP address of
DHCP server
67 UDP
DHCP protocol port, it is used
to obtain IP address from
DHCP server.
1024~65535 LDAP Server
IP address of
LDAP server
Determined by
destination
device.
TCP
LDAP protocol port, it is used
to obtain the contact
information from LDAP server.
1024~65535 NTP Server
IP address of
NTP server
123 UDP
NTP protocol port, it is used to
synchronize time from NTP
time server.
1024~65535 Syslog Server
IP address of
syslog server
514 UDP
Syslog protocol port, it is used
for IP phones to upload
syslog information to syslog
server.
1024~65535 PNP Server
IP address of
PNP server
(Default value:
224.0.1.75)
5059 UDP/TCP
Protocol port, it is used to
obtain the URL of updating file
from PNP server.
Multipaging Multipaging
65000
65001
PC IP 1~65535 TCP HTTP port (default value: 80)