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Home > Archive > Voice over IP Cisco > January 2008 > h323-gateway voip bind srcaddr
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h323-gateway voip bind srcaddr
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| Ramiz Sardar 2008-01-04, 1:12 am |
| 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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| Ryan Ratliff 2008-01-04, 1:12 am |
| 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
| |
| Lelio Fulgenzi 2008-01-04, 1:12 am |
| It also helps simplify ACLs. ;)
--------------------------------------------------------------------------------
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 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
------------------------------------------------------------------------------
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