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New Member

MGCP with CCM5 Registration Problem

Dear sir,

I have CCM ver.5 and 2811 gateway connected through VPN tunnel (Easy VPN).

I advertised LAN network on the remote gateway and its reachable through the Call-Manager, but we couldn't advertise the WAN (VPN tunnel IP) because its variable..

So we can't ping (normal Ping) to the call-manager from the gateway but we can ping using the extended ping with LAN IP address as the source.

The MGCP is down and can't reach the call manger, but if we can change the MGCP source interface I think this will solve the issue.

Can you help to solve this problem.

14 REPLIES
Cisco Employee

Re: MGCP with CCM5 Registration Problem

New Member

Re: MGCP with CCM5 Registration Problem

Thanks,

i added them but still facing problem.

please find attached, debug mgcp , show run , show ccm.

Thnaks in advance for your help

New Member

Re: MGCP with CCM5 Registration Problem

Thanks,

i added them but still facing problem.

please find attached, debug mgcp , show run , show ccm.

Thnaks in advance for your help

Re: MGCP with CCM5 Registration Problem

You have a connectivity issue.

Either these packets aren't getting there, aren't allowed through the VPN, or the responses for them aren't getting back through the VPN.

Please make sure that UDP 2427 and TCP 2428 are allowed on your VPN.

-nick

New Member

Re: MGCP with CCM5 Registration Problem

Hi

I double checked the connectivity, it seems good ,UDP and TCP are opened

can anyone help me ?

Thanks all

Re: MGCP with CCM5 Registration Problem

Hi,

Did you configure your router in the CM as Hulul-Amman.hulul.com?

Best regards,

- Adrián.

New Member

Re: MGCP with CCM5 Registration Problem

Hi,

yes i configured it and tried with Hulul-Amman without the domain name.

kindly find debug output (debug mgcp all)

in attached

----------------------------------------

Re: MGCP with CCM5 Registration Problem

Hi,

From the debug, I saw this:

*May 4 05:52:27.675: MGCP Packet received from 10.226.100.10:2427--->

510 240884367

<---

510 is a MGCP Response Code. Means that transaction could not be executed because a protocol error was detected.

Could you share us your MGCP configuration in CM?

Best regards.

New Member

Re: MGCP with CCM5 Registration Problem

Thanks all

kindly find attached files

Re: MGCP with CCM5 Registration Problem

Hi,

If a domain name is configured on the MGCP gateway, the domain name for the gateway configuration on Cisco CallManager must be the same. In your gateway you have hostname Hulul-Amman and ip domain hulul.com, but in CM you have only Hulul-Amman.

If the domain names for the MGCP gateway and the gateway configuration on Cisco CallManager do not match, perform one of these actions:

* Change the domain name on either the MGCP gateway or Cisco CallManager so that they both have the same domain name.

* If either hostname or domain name is changed on the MGCP gateway, issue these two global commands in sequence on the MGCP gateway in order to implement the new hostname or domain name:

no mgcp

mgcp

Try to reset the gateway voice ports if you encounter issues with the Cisco IOS gateway registration or operation:

router(config)#voice-port 0/0/0

router(config-voiceport)#shutdown

router(config-voiceport)#no shutdown

router(config)#voice-port 0/0/1

router(config-voiceport)#shutdown

router(config-voiceport)#no shutdown

Check if your gateway endpoints show registered in CM.

Hope it helps.

Best regards.

New Member

Re: MGCP with CCM5 Registration Problem

Thanks for you.

Please note that I made some edits and trial before on the Gateway regarding the domain name and it's the same , Hulul-Amman.

i made everything and the problem still come into view

Re: MGCP with CCM5 Registration Problem

Hi,

Then it's better to open a TAC case. TAC Engineer will request CM Traces for analysis.

Best regards.

Re: MGCP with CCM5 Registration Problem

The debugs show that your gateway has .hulul.com

but the screenshot doesn't.

Regardless, the debugs also show that the MGCP gateway isn't getting any responses. Check your routing.

-nick

Silver

Re: MGCP with CCM5 Registration Problem

Have you checked this bug due to the 510 error message

CSCsi19351 Bug Details

CM calls to FXO MGCP GW fails with 510 protocol error if no dialed digit ?

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