[cisco-voip] ccm and Service Provider PAT Port AllocationEnhancement for RTP and RTCP

[Voll, Scott]

The reason for two Ethernet ports is for Teaming on the same subnet for
redundancy.  This is the only TAC supported use of two Ethernet ports.

 

Two options as I see it.

 

1.                   get the cisco SCCP phone proxy appliance

or

2.                   setup an IPSEC tunnel between the sites

 

Scott

 

________________________________

From: gokhan senol [mailto:gokhanciscottl at yahoo.com] 
Sent: Wednesday, April 18, 2007 10:55 PM
To: Voll, Scott
Subject: Re: [cisco-voip] ccm and Service Provider PAT Port
AllocationEnhancement for RTP and RTCP

 

yes i use 2 ethernet ports. 

Why it is not supported and if it is not supported why there are 2
ethernet ports?

 

also if it is not supported then i must  nat CCM ethernet on the
firewall.

but the question is for rtp streams how can i make nat for ip phones. i
cant make nat config by specifiying  rtp port range. 

fw makes nat only using ip , firewall doesnt look source port during
nat.

but we know rtp ports 16384 32767 . and nat config must use these ports

 

thanks 

----- Original Message ----
From: "Voll, Scott" <Scott.Voll at wesd.org>
To: gokhan senol <gokhanciscottl at yahoo.com>; cisco-voip at puck.nether.net
Sent: Wednesday, April 18, 2007 6:10:44 PM
Subject: RE: [cisco-voip] ccm and Service Provider PAT Port
AllocationEnhancement for RTP and RTCP

If I understand correctly you are using two Ethernet ports on your CM.
This is not supported.

 

If I misunderstand my apologies.

 

Scott

 

________________________________

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of gokhan senol
Sent: Wednesday, April 18, 2007 1:18 AM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] ccm and Service Provider PAT Port
AllocationEnhancement for RTP and RTCP

 

hi

 

design : ccm 4.1.3  have 2 ip address one private and the other one
public.

private ip is behind the firewall.

 

i gave public ip address to CCM for 2nd ethernet and putted the beyond
the firewall .also I  added a new h323 gateway  for voip service
provider's h323 gateway .

when i try to make a call from voip provider's backbone the remote side
ringins but there is no audio ,

because there is no rtp stream from my ip phone. Because ip phones have
private ip

so is it ok if i nat the ip phones on my internet router?

also i read a documents related to Service Provider PAT Port Allocation
Enhancement for RTP and RTCP   and session border control ..

how to i nat ipphones .  

can  i use the config example in the document below in my INTERNET
router?

http://www.cisco.com/en/US/products/ps6640/products_white_paper0900aecd8
0597bc7.shtml

 

thanks a  lot

Gokhan

 

 

 

 

 

________________________________

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________________________________

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