gnuGK Gatekeeper Integration with Cisco 2821 Gateway

edip.gumuskaya · ‎11-24-2008

Hi,

I have a cisco communications manager 6.1.2 with a cisco 2821 (c2800nm-adventerprisek9_ivs_li-mz.124-20.T.bin)

We need to attach the gateway to an external gnuGK Gatekeeper.

(http://www.gnugk.org)

I have successfully registered my gateway to the gatekeeper....

sh gateway

H.323 ITU-T Version: 4.0 H323 Stack Version: 0.1

H.323 service is up

Gateway London is registered to Gatekeeper nghhGK

Alias list (CLI configured)

H323-ID London

Alias list (last RCF)

H323-ID London

But I am unable to establish a call to the far end. The "sh h323 gateway" show me......

trx_VoRTR_16#sh h323 gatewa

H.323 STATISTICS AT 5d01h

H.225 REQUESTS SENT RECEIVED FAILED

Setup 1 1 0

Setup confirm 0 0 0

Alert 0 0 0

Progress 0 0 0

Call proceeding 1 0 0

Notify 0 0 0

Info 0 0 0

User Info 0 0 0

Facility 0 0 0

Release 2 0 0

Reject 0 0 0

Passthrough 0 0 0

H225 establish timeout 1

RAS failed 0

H245 failed 0

RAS MESSAGE REQUESTS SENT CONFIRMS RCVD REJECTS RCVD

GK Discovery grq 0 gcf 0 grj 0

Registration rrq 1 rcf 1 rrj 0

Admission arq 2 acf 2 arj 0

Bandwidth brq 0 bcf 0 brj 0

Disengage drq 2 dcf 2 drj 0

Unregister urq 0 ucf 0 urj 0

Resource Avail rai 0 rac 0

Req In Progress rip 0

RAS MESSAGE REQUESTS RCVD CONFIRMS SENT REJECTS SENT

GK Discovery grq 0 gcf 0 grj 0

Registration rrq 0 rcf 0 rrj 0

Admission arq 0 acf 0 arj 0

Bandwidth brq 0 bcf 0 brj 0

Disengage drq 0 dcf 0 drj 0

Unregister urq 0 ucf 0 urj 0

Resource Avail rai 0 rac 0

Req In Progress rip 0

DISC CAUSE CODE FROM OTHER PEER FROM H323 PEER

18 no user response (18) 1 1

H323 gateway internal event queue:

Events queued 0, free 2, held 2, allocated 2 times, exceed max 0 times

Max serviced 3, Max serviced exceed 0

no dest 0, no buffers 0, call flushes 0

CRV statistics

In use: 0

Max collisions obtaining crv: 0

I send the call setup, but I do not receive anything back.

Anyone ever tried this before???

jasoninbtr · ‎11-24-2008

I would take a packet capture between the GK and gateway to see what is going on. I have never used GNUGK but it looks like there are some status commands you can issue to see if there are registration requests, calls, etc.

Jason

edip.gumuskaya · ‎11-25-2008

I have attached the gnuGK config scripts (cutdown from the supplier)

The configuration of the previous VoIP gateway which I am attempt to replace with our Cisco 2821.

A debug of all the commands whilst making a call.

Can you see anymore then what my TAC engineer can see. He says that we don't see a reply back from the Gatekeeper, but the Patton device works fine.

edip.gumuskaya · ‎11-25-2008

Some more debugs and the current running config of our cisco gateway.

Any help will be much appreciated.

jasoninbtr · ‎11-25-2008

I would still get a packet capture using ethereal/wireshark to see if you are acutally getting responses from the GK. You might also remove that access list off of the router on the interface facing the GK just to test.

Jason

Jesse Drohen · ‎11-26-2008

The debug h225 asn1 is a good start which you attached, but it was only during a registration event and I don't think that is the issue that you are asking about.

I see that there were two ARQ and two ACF with no rejections.

Admission arq 2 acf 2 arj 0

I would like to see this debug wile a call is being attempted.

Also, what do you mean by "but I do not receive anything back"? Back from where? The gnuGK or the destination GW?

Jesse