CallManager 5.1.3 Port Traffic

Answered Question
May 13th, 2008

We have a system in place that monitor network traffic. We have been told that there has been an increase in traffic from ports 1695,1148,1687,and 1685 on the CallManager. Was wondering if anybody knew what kind of traffic these port send?

I have this problem too.
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Correct Answer by dezoconnor about 8 years 7 months ago

Hi, none of those ports are used by CUCM:

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/port/5_1/51plrev1.pdf

I've looked up the ports you mention above and according to IANA they are as follows:

rrilwm Port 1695 TCP rrilwm

rrilwm Port 1695 UDP rrilwm

elfiq-repl Port 1148 TCP Elfiq Replication Service

elfiq-repl Port 1148 UDP Elfiq Replication Service

nsjtp-ctrl Port 1687 TCP nsjtp-ctrl

nsjtp-ctrl Port 1687 UDP nsjtp-ctrl

n2nremote Port 1685 TCP n2nremote

n2nremote Port 1685 UDP n2nremote

HTH

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Correct Answer
dezoconnor Tue, 05/13/2008 - 08:54

Hi, none of those ports are used by CUCM:

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/port/5_1/51plrev1.pdf

I've looked up the ports you mention above and according to IANA they are as follows:

rrilwm Port 1695 TCP rrilwm

rrilwm Port 1695 UDP rrilwm

elfiq-repl Port 1148 TCP Elfiq Replication Service

elfiq-repl Port 1148 UDP Elfiq Replication Service

nsjtp-ctrl Port 1687 TCP nsjtp-ctrl

nsjtp-ctrl Port 1687 UDP nsjtp-ctrl

n2nremote Port 1685 TCP n2nremote

n2nremote Port 1685 UDP n2nremote

HTH

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