[cisco-voip] DerSphere_II (2000) drops towards CCM3.3

[Darren Ward]

In Cisco IPTel tcp port 2000 is actually the skinny protocol your phones
communicate with the CallMananger on.
 
Your firewall is blocking half the communications hence the registration
failures.
 
Check out:
http://www.cisco.com/en/US/customer/products/sw/voicesw/ps556/products_tech_
note09186a00801a62b9.shtml
 
Regards 
Darren

  _____  

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of ALI Rijas
Mannanthara
Sent: Wednesday, 20 April 2005 11:43 AM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] DerSphere_II (2000) drops towards CCM3.3



 

Hi,

 

With in a minute this error pops up in Application event LOG in CCM3.3
thrice .Call manager is functional . Can some one help regarding this.

 

Event Type:       Error

Event Source:    Cisco CallManager

Event Category: None

Event ID:           3

Date:                4/20/2005

Time:                6:57:15 AM

User:                N/A

Computer:         XXXX-XXX-01-CM01

Description:

Error: DeviceTransientConnection - Transient connection attempt.

  Connecting Port: 0

  Device name [Optional].: CFB_XXXX

  Device IP address.: 

  Device type. [Optional]: 50

  Reason Code [Optional].: 3

  App ID: Cisco CallManager

  Cluster ID: StandAloneCluster

  Node ID: 

Explanation: A connection was established and immediately dropped before
completing registration. Incomplete registration may indicate a device is
rehoming in the middle of registration. The alarm could also indicate a
device misconfiguration, database error, or an illegal/unknown device trying
to attempt a connection.

Recommended Action: No action is required if this event was issued as a
result of a normal device rehome..

 

 

 

Also from one of my voice segments I see lot of DerSphere_II (2000) drops in
firewall that were destines towards Subscriber while for that Voice segment
I have a subscriber as primary CCM.

 

Number:            4681000

Date:                20Apr2005

Time:                1:35:01

Product:            VPN-1 & FireWall-1

Interface:           eth1c0

Origin:               fw3 (220.225.142.20)

Type:                Log

Action:              Drop

Protocol:           tcp

Service:             DerSphere_II (2000)

Source:             IP phone

Destination:       CCM

Source Port:      52267

Information:       message_info: Address spoofing

 

 

 

Thanks ,

 

Rijas

EPBX : 6226

VoIP : 248-994-4858

 

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