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

[ Post a follow-up to this message ]

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



_____

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

[ Post a follow-up to this message ]

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)
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
"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@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 fo
r 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 loo
pback, assuming the loopback is routable everywhere.  
-Ryan 





----------------------------------------------------------------------------
--
From: cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck
.nether.net] On Behalf Of Ramiz Sardar
Sent: Thursday, January 03, 2008 9:13 PM
To: cisco-voip@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 vo
ip bind srcaddr. In which scenario this command is used? Actually i have an 
ospf core network. Each router is accessible from other router through multi
ple 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 de
stination 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 accessib
le from everywhere.

Need your responses

Best Regards





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


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