Avaya 9601 - Limited Access During Failover

Transmitted packets (source = SIP deskphone)
Destination port Source port Use Protocol
UDP or TCP
53 Any unused port number Transmitted DNS
messages
UDP
67 68 Transmitted DHCP
messages
UDP
80, unless explicitly
specified otherwise
Any unused port number Packets transmitted by
the HTTP client of the
deskphone
TCP
123 Any unused port number Transmitted SNTP
messages
UDP
The number used in the
Source Port field of the
SNMP query packet
received by the
deskphone
161 Transmitted SNMP
messages
UDP
443, unless explicitly
specified otherwise
Any unused port number TLS/SSL packets
transmitted by the HTTP
client of the deskphone.
TCP
514 Any unused port number Transmitted Syslog
messages
UDP
The port number
specified in the test
request message
50000 Transmitted CNA test
results messages
UDP
System-specific Any unused port number Transmitted signaling
protocol packets
TCP
FEPORT + 1 (if FEPORT
is even) or FEPORT -1 (if
FEPORT is odd) or the
port number specified in
a CNA RTP test request
plus or minus one, as
with FEPORT
PORTAUD + 1 (if
PORTAUD is even) or
PORTAUD – 1 (if
PORTAUD is odd) or the
port number reserved for
CNA RTP tests plus or
minus one, as for
PORTAUD, above
RTCP and SRTCP
packets transmitted to
the far-end of the audio
connection
UDP
RTCPMONPORT PORTAUD + 1 (if
PORTAUD is even) or
PORTAUD – 1 (if
PORTAUD is odd)
RTCP packets
transmitted to an RTCP
monitor
UDP
System-specific Any unused port number Transmitted signaling
protocol packets
UDP
TCP and UDP ports
August 2015 Administering Avaya 9601/9608/9611G/9621G/9641G/9641GS IP Deskphones SIP 85
Comments on this document? infodev@avaya.com