Re: Problem with Gateway cannot register with CCM

chewshk · ‎03-01-2005

Hi,

I am trying to install CCM v4.0(1). Now within the Firewall, at the LAN, my IP Phones are working. However, I cannot call out to the PSTN.

My gateway is a Cisco2611XM. When I do

sh ccm-manager, it displayed as below

TWG2651#sh ccm-manager

MGCP Domain Name: TWG2651

Priority Status Host

============================================================

Primary Backup Ready 172.16.28.102

First Backup Registering with CM 172.16.28.101

Second Backup None

Current active Call Manager: None

Backhaul/Redundant link port: 2428

Failover Interval: 30 seconds

Keepalive Interval: 15 seconds

Last keepalive sent: 08:00:00 MALAYSIA Mar 1 1993 (elapsed time: 00:46:42)

Last MGCP traffic time: 08:00:20 MALAYSIA Mar 1 1993 (elapsed time: 00:46:22)

Last failover time: 08:46:20 MALAYSIA Mar 1 1993 from (172.16.28.102)

Last switchback time: 08:45:50 MALAYSIA Mar 1 1993 from (172.16.28.101)

Switchback mode: Graceful

MGCP Fallback mode: Enabled/OFF

Last MGCP Fallback start time: None

Last MGCP Fallback end time: None

Configuration Auto-Download Information

=======================================

No configurations downloaded

Current state: Downloading XML file

Configuration Download statistics:

Download Attempted : 1

Download Successful : 0

Download Failed : 0

Configuration Attempted : 0

Configuration Successful : 0

Configuration Failed(Parsing): 0

Configuration Failed(config) : 0

Last config download command:

Configuration Error History:

FAX mode: cisco

Therefore, would it be my NTP settings at the gateway is incorrect?

And what is the correct setting if it's something to do with NTP settings.

Rgds

milay · ‎03-01-2005

What is the status in the CCM for the GW? Reason I ask is this "Current state: Downloading XML file". It appears that the GW is reregistering or trying to register.

Can you post the show run from the GW & a screen print of the GW config in the CCM?

Mike Lay

Chandramohan Nagarajah · ‎03-01-2005

try restarting the MGCP, by "no mgcp" and then by "mgcp"

allan.thomas · ‎03-01-2005

When you added the MGCP gateway to Callmanger, did you ensure that the MGCP Domain Name allocated to the endpoint matches the hostname and domain name that configured on the router.

From the show ccm-callmanager it would appear that your router is configured with the domain name TWG2651, is this the MGCP domain name created in CallManager.

It would appear the gateway has failed to register with CallManager, the backhaul has not established hence fail calls.

Verify that the file TWG2651.cnf.xml has been added to the publisher TFTP path found at c:\program files\cisco\tftp. You may have to disable caching on the TFTP service parameters to be able to view all files.

If this file does not exist, then this is a large part of the problem, and consequently the gateway is unable to download the xml file.

Have you configured the appropriate MGCP commands on the gateway:

ccm-manager mgcp

ccm-manager config server

ccm-manager config

If you have the above in your configuration, you can attempt to force a config download by running the following command:

ccm-manager config-download check-configuration reset.

Sascha Monteiro · ‎03-01-2005

Hi,

Can you please post your configuration?

(at least the lines with ccm-manager, mgcp and dial-peer)

And check if your CallManager config is ok, domain name, module, port.

rgrds

chinmf · ‎03-01-2005

Hi I am replying on behalf of chewshk@my.ibm.com

Printscreens of the gateway config on CM

[url=http://img51.exs.cx/my.php?loc=img51ℑ=gwconfig8kj.jpg][img=http://img51.exs.cx/img51/5838/gwconfig8kj.th.jpg][/url]

[url=http://img26.exs.cx/my.php?loc=img26ℑ=gwconfig25er.jpg][img=http://img26.exs.cx/img26/8163/gwconfig25er.th.jpg][/url]

CM publisher IP : 172.16.28.101

CM subscriber IP : 172.16.28.102

Here's the sh run on the gateway

no voice hpi capture buffer

no voice hpi capture destination

!

ccm-manager fallback-mgcp

ccm-manager redundant-host 172.16.28.101

ccm-manager mgcp

ccm-manager music-on-hold

ccm-manager config server 172.16.28.101

ccm-manager config

mta receive maximum-recipients 0

!

controller E1 0/2

framing NO-CRC4

pri-group timeslots 1-31 service mgcp

description ISDN PRI Gateway

!

voice-port 0/2:15

!

mgcp

mgcp call-agent 172.16.28.102 2427 service-type mgcp version 0.1

mgcp dtmf-relay voip codec all mode out-of-band

mgcp rtp unreachable timeout 1000 action notify

mgcp package-capability rtp-package

no mgcp package-capability res-package

mgcp package-capability sst-package

no mgcp timer receive-rtcp

mgcp sdp simple

mgcp fax t38 inhibit

mgcp rtp payload-type g726r16 static

!

mgcp profile default

!

dial-peer cor custom

!

dial-peer voice 1 pots

application mgcpapp

port 0/2:15

--More--

!

dial-peer cor custom

!

dial-peer voice 1 pots

application mgcpapp

port 0/2:15

!

palves · ‎03-02-2005

status is not registered.

do you have a domain name configured on your router????

If so, add it to the name of the MGCP gateway (on the MGCP configuration area on CallManager). This would be in the area where you currently have the gateway name as "TWG2651". Replace it with the full domain name.

I'm assuming you have a command on the router as such... "ip domain-name whatever.com"

Your gateway's name is TWG2651.

If you have configured the domain name as whatever.com.

Then the proper domain name of the MGCP gateway should be "TGW2651.whatever.com".

If you don't do this, it won't register properly.

hope this helps.

Paul

chinmf · ‎03-02-2005

I have tried configuring the domain name on the router and also in the configuration area on CallManager. It still does not work.

Any idea why CM cannot grab the IP address of the gateway?

Is the mgcp config on the router & CM correct?

allan.thomas · ‎03-02-2005

Have you looked at my previous post ? Have you verified the aspects that I mentioned ?

Thanks

Allan.

palves · ‎03-03-2005

CallManager does not "grab" the ip address of the gateway. Actually the gateway registers with callmanager.

Paul

Sascha Monteiro · ‎03-02-2005

Hi,

You mentioned a firewall, is that between the gateway and the callmanager?

You need TCP2427 and UDP2428 open for signalling

And run these debugs:

debug ccm-manager config-download all

debug ccm-manager backhaul events

debug ccm-manager errors

debug ccm-manager events

debug mgcp parser

debug mgcp errors

then do a no mgcp followed by mgcp

Maybe you can find useful information in it!

good luck

1tanth · ‎03-02-2005

Hi

I would like to know if by enabling

fixup protocol mgcp 2427

fixup protocol mgcp 2428

in the firewall have similar effect?

Rgds

chewshk · ‎03-02-2005

Hi,

Thanks. I actually enabled "ALL" inside-outside and "ALL" outside-inside just for the testing purposes. However, it still doesn't work.

But the funny thing is, when I did the above, especially when I enable ALL UDP, my link from the internal network to the Router's fa0/0 (after the PIX) will have a intermittent down and up time.

I will enable these ports only for now. Do I need to enable it for outside-to-inside also?

What about the NAT? To use same ip address, or is a static NAT necessary?

Is NTP on the router any influence on this?

Rgds

Simon

Sascha Monteiro · ‎03-03-2005

..you're not NAT-ing right????

NTP is not influencing anything,

only handy for your debug timestamps..