h323-gateway voip interface

[michael-luo]

I've read Cisco IOS command reference, but I'm still not sure about the purpose of "h323-gateway voip interface" command.

Moreover, I was trying to understand the difference between "h323-gateway voip interface" and "h323-gateway voip bind srcaddr".

Here's my config on the gateway router:

interface Fa0/0
  ip address 192.168.1.254 255.255.255.0
  h323-gateway voip bind srcaddr 192.168.1.254
interface loopback0
  ip address 10.1.1.254 255.255.255.0
  h323-gateway voip interface
  h323-gateway voip id GK ipaddr 10.2.2.254
  h323-gateway voip h323-id CUCME
  h323-gateway voip tech-prefix 408

From my understanding, the "h323-gateway voip interface" command should dictate the source address that being used to communicate with gatekeeper.  i.e. it should be 10.1.1.254 (loopback0)

However, when I do a "show gatekeeper endpoint" command on the gatekeeper router, it's showing the RAS address as 192.168.1.1.254 (Fa0/0).  How can I make the gateway router to use loopback0 communicate with GK, while using the Fa0/0 interface communicate with other H323 peers (such as CUCM)?

GK#show gatekeeper endpoint
                    GATEKEEPER ENDPOINT REGISTRATION
                    ================================
CallSignalAddr  Port  RASSignalAddr   Port  Zone Name         Type    Flags 
--------------- ----- --------------- ----- ---------         ----    ----- 
192.168.1.254  1720  192.168.1.254  60745 GK                VOIP-GW 
    H323-ID: CUCME
    Voice Capacity Max.=  Avail.=  Current.= 0
Total number of active registrations = 1

P.S.

• IOS image being used is c3825-adventerprisek9_ivs-mz.124-24.T4.bin
• I also tried making the gateway router a "H323-GW" instead of "VOIP-GW" by adding "allow h323 to h323" command.  Same behavior.

Thanks!

Michael

[techguy]

I cant remove it, since this router acting as cme is connected with othwe cme too.

[vandana]

You don't need this cmd if call is coming from another CME. You don't registered this as h323 GW to CME.

[iptuser55]

Just to add, I always thought the "h323-gateway voip bind srcaddr X.X.X.X" commend was to tell the destination where the IP packets came from particular if you have loopback address otherwise you can have one way transmission , loss of packets etc

[naman.vohra]

Hi Amer,

I am connecting Cisco 3945 with Dell Switch on which Cumulus Linux in running. I will binding both the ports of 3945 in Port channel and connected it to Cumulus Switch.

Can I configured h323-gateway voip bind srcaddr command on Layer 3 Port channel connecting to Cumulus Switch.

Did I need to also  add  h323-gateway voip interface on the Interface level .