[cisco-voip] h323-gateway voip bind srcaddr

[Lelio Fulgenzi]

It also helps simplify ACLs. ;)

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Lelio Fulgenzi, B.A.
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
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"Life expectancy would grow by leaps and bounds if green vegetables smelled as good as bacon."
Doug Larson


  ----- Original Message ----- 
  From: Ryan Ratliff 
  To: 'Ramiz Sardar' ; cisco-voip at puck.nether.net 
  Sent: Thursday, January 03, 2008 11:07 PM
  Subject: Re: [cisco-voip] h323-gateway voip bind srcaddr


  Without this command the router will basically pick an IP address at random to source the h323 packets from.  As you mentioned if that link goes down for any reason calls sourced from that IP address will drop.  It is also used when you have an interface on the router the voice vlan devices cannot route to.  It was a common cause of one-way audio TAC cases back in the day (and still might be for all I know).   You are spot on with assigning it to a loopback, assuming the loopback is routable everywhere.  
  -Ryan 





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  From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Ramiz Sardar
  Sent: Thursday, January 03, 2008 9:13 PM
  To: cisco-voip at puck.nether.net
  Subject: [cisco-voip] h323-gateway voip bind srcaddr


  Friends,


  I am working on voip setup. I need to know about the command h323-gateway voip bind srcaddr. In which scenario this command is used? Actually i have an ospf core network. Each router is accessible from other router through multiple links. Regarding this command i think, if i create a loopback interface on all routers and this interface would be the source of voice packet and destination would be the loopback of the target router then my voice call will never drop if any link down the network. Because loopback would be accessible from everywhere.

  Need your responses

  Best Regards





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