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One Way RTP voice problems using CME
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| Kristjįn Ólafur Ešvaršsson 2005-05-23, 5:45 pm |
| Hi all,
I have this One Way Voice issue with CME through PSTN PRI. This happened af=
ter I started connecting Internet straight to the CME instead of =
letting another router do it.
Past:
I have been using cisco 2811 and CME for some time. The CME registers other=
remote IP phones
over ipsec tunnel terminated at a same network router. Those far end phones=
use the PSTN on my site with success.
Present:
However when I set up a Internet connection straight to my CME (using G.SDH=
SL VIC, skiping the older Internet Router that used to terminate the VPN) a=
nd a Ipsec tunnel
to the same destination as before (Cisco PIX) I have these facts:
1. IP phones locally and on the far end can comunicate with out problems as=
before.
2. Far end IP phones can be called via the PSTN and they can call through p=
stn but always we have one-way voice problem. Far end hears nothing but PST=
N hears them
(other call controll seems to work, like ringback, remote phone is ringing=
etc.)
3. I tried to include the CME Internet IP address to the tunnel, so it woul=
d be included when the router itself was orginating packets but that didn=
=B4t change anything.
Anyone had this issue or have faced this particular problem ?
For clarification, the schenario is like this:
PSTN----Local IP phones---CME<------------------<WAN/Internet>------------>=
PIX-----remote IP phones<registerd to the CME =
regards. Kristjan Edvardsson
CCNP - MCSE
Sensa ehf. cisco Silver Partner
| |
| Voll, Scott 2005-05-23, 5:45 pm |
| Sounds like a pix problem. Are you allowing traffic back?
-----Original Message-----
From: cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.ne=
ther.net] On Behalf Of Kristj=E1n =D3lafur E=F0var=F0sson
Sent: Monday, May 23, 2005 2:33 PM
To: cisco-voip@puck.nether.net
Subject: [cisco-voip] One Way RTP voice problems using CME
Hi all,
I have this One Way Voice issue with CME through PSTN PRI. This happened af=
ter I started connecting Internet straight to the CME instead of =
letting another router do it.
Past:
I have been using cisco 2811 and CME for some time. The CME registers other=
remote IP phones
over ipsec tunnel terminated at a same network router. Those far end phones=
use the PSTN on my site with success.
Present:
However when I set up a Internet connection straight to my CME (using G.SDH=
SL VIC, skiping the older Internet Router that used to terminate the VPN) a=
nd a Ipsec tunnel
to the same destination as before (Cisco PIX) I have these facts:
1. IP phones locally and on the far end can comunicate with out problems as=
before.
2. Far end IP phones can be called via the PSTN and they can call through p=
stn but always we have one-way voice problem. Far end hears nothing but PST=
N hears them
(other call controll seems to work, like ringback, remote phone is ringing=
etc.)
3. I tried to include the CME Internet IP address to the tunnel, so it woul=
d be included when the router itself was orginating packets but that didn=
=B4t change anything.
Anyone had this issue or have faced this particular problem ?
For clarification, the schenario is like this:
PSTN----Local IP phones---CME<------------------<WAN/Internet>------------>=
PIX-----remote IP phones<registerd to the CME =
regards. Kristjan Edvardsson
CCNP - MCSE
Sensa ehf. cisco Silver Partner
________________________________________
_______
cisco-voip mailing list
cisco-voip@puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-voip
| |
| Kristjįn Ólafur Ešvaršsson 2005-05-23, 5:45 pm |
| You see the PIX was there before I change the CME and it worked great.
It has Sysopt connection permit ipsec configured so it allows anything with=
in the IPsec tunnel.
I included the CME public address to the tunnel if the right networks are t=
he source.
So my focus is still on the CME. What is happening that might be causing th=
is.
I can wake the tunnel straight from the CME and ping and telnet on port 80 =
to the remote phones from the CME telnet console.
regards. Kristjan =
-----Original Message-----
From: Voll, Scott [mailto:Scott.Voll@wesd.org] =
Sent: 23. ma=ED 2005 21:49
To: Kristj=E1n =D3lafur E=F0var=F0sson; cisco-voip@puck.nether.net
Subject: RE: [cisco-voip] One Way RTP voice problems using CME
Sounds like a pix problem. Are you allowing traffic back?
-----Original Message-----
From: cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.ne=
ther.net] On Behalf Of Kristj=E1n =D3lafur E=F0var=F0sson
Sent: Monday, May 23, 2005 2:33 PM
To: cisco-voip@puck.nether.net
Subject: [cisco-voip] One Way RTP voice problems using CME
Hi all,
I have this One Way Voice issue with CME through PSTN PRI. This happened af=
ter I started connecting Internet straight to the CME instead of letting an=
other router do it.
Past:
I have been using cisco 2811 and CME for some time. The CME registers other=
remote IP phones over ipsec tunnel terminated at a same network router. Th=
ose far end phones use the PSTN on my site with success.
Present:
However when I set up a Internet connection straight to my CME (using G.SDH=
SL VIC, skiping the older Internet Router that used to terminate the VPN) a=
nd a Ipsec tunnel to the same destination as before (Cisco PIX) I have thes=
e facts:
1. IP phones locally and on the far end can comunicate with out problems as=
before.
2. Far end IP phones can be called via the PSTN and they can call through p=
stn but always we have one-way voice problem. Far end hears nothing but PST=
N hears them (other call controll seems to work, like ringback, remote pho=
ne is ringing etc.) 3. I tried to include the CME Internet IP address to th=
e tunnel, so it would be included when the router itself was orginating pac=
kets but that didn=B4t change anything.
Anyone had this issue or have faced this particular problem ?
For clarification, the schenario is like this:
PSTN----Local IP phones---CME<------------------<WAN/Internet>------------>=
PIX-----remote IP phones<registerd to the CME =
regards. Kristjan Edvardsson
CCNP - MCSE
Sensa ehf. cisco Silver Partner
________________________________________
_______
cisco-voip mailing list
cisco-voip@puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-voip
| |
| Kristjįn Ólafur Ešvaršsson 2005-05-23, 8:45 pm |
| Latest news is that this isn=B4t supported until CME version 4 according to=
TAC.
I don=B4t have info on why. But I will post to you when I have answers.
regards. Kristjan Edvardsson =
-----Original Message-----
From: Voll, Scott [mailto:Scott.Voll@wesd.org] =
Sent: 23. ma=ED 2005 21:49
To: Kristj=E1n =D3lafur E=F0var=F0sson; cisco-voip@puck.nether.net
Subject: RE: [cisco-voip] One Way RTP voice problems using CME
Sounds like a pix problem. Are you allowing traffic back?
-----Original Message-----
From: cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.ne=
ther.net] On Behalf Of Kristj=E1n =D3lafur E=F0var=F0sson
Sent: Monday, May 23, 2005 2:33 PM
To: cisco-voip@puck.nether.net
Subject: [cisco-voip] One Way RTP voice problems using CME
Hi all,
I have this One Way Voice issue with CME through PSTN PRI. This happened af=
ter I started connecting Internet straight to the CME instead of letting an=
other router do it.
Past:
I have been using cisco 2811 and CME for some time. The CME registers other=
remote IP phones over ipsec tunnel terminated at a same network router. Th=
ose far end phones use the PSTN on my site with success.
Present:
However when I set up a Internet connection straight to my CME (using G.SDH=
SL VIC, skiping the older Internet Router that used to terminate the VPN) a=
nd a Ipsec tunnel to the same destination as before (Cisco PIX) I have thes=
e facts:
1. IP phones locally and on the far end can comunicate with out problems as=
before.
2. Far end IP phones can be called via the PSTN and they can call through p=
stn but always we have one-way voice problem. Far end hears nothing but PST=
N hears them (other call controll seems to work, like ringback, remote pho=
ne is ringing etc.) 3. I tried to include the CME Internet IP address to th=
e tunnel, so it would be included when the router itself was orginating pac=
kets but that didn=B4t change anything.
Anyone had this issue or have faced this particular problem ?
For clarification, the schenario is like this:
PSTN----Local IP phones---CME<------------------<WAN/Internet>------------>=
PIX-----remote IP phones<registerd to the CME =
regards. Kristjan Edvardsson
CCNP - MCSE
Sensa ehf. cisco Silver Partner
________________________________________
_______
cisco-voip mailing list
cisco-voip@puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-voip
| |
| Kristjįn Ólafur Ešvaršsson 2005-05-25, 7:45 am |
| I have a solution now. A sort of a workaround.
We did the following to workaround this problem:
1. addedd a looopback interface to the CME
2. Included this loopback to the ipsec tunnel
3. Created a policy route map pointing to next hop out of the CME router wh=
en the remote networks are looked up.
4. Created a static route to the remote networks pointing at the loopback i=
nterface.
We have done this in 2 locations and it works like a charm.
regards. Kristjan Edvardsson
Sensa ehf. cisco Silver Partner =
-----Original Message-----
From: Voll, Scott [mailto:Scott.Voll@wesd.org] =
Sent: 23. ma=ED 2005 21:49
To: Kristj=E1n =D3lafur E=F0var=F0sson; cisco-voip@puck.nether.net
Subject: RE: [cisco-voip] One Way RTP voice problems using CME
Sounds like a pix problem. Are you allowing traffic back?
-----Original Message-----
From: cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.ne=
ther.net] On Behalf Of Kristj=E1n =D3lafur E=F0var=F0sson
Sent: Monday, May 23, 2005 2:33 PM
To: cisco-voip@puck.nether.net
Subject: [cisco-voip] One Way RTP voice problems using CME
Hi all,
I have this One Way Voice issue with CME through PSTN PRI. This happened af=
ter I started connecting Internet straight to the CME instead of letting an=
other router do it.
Past:
I have been using cisco 2811 and CME for some time. The CME registers other=
remote IP phones over ipsec tunnel terminated at a same network router. Th=
ose far end phones use the PSTN on my site with success.
Present:
However when I set up a Internet connection straight to my CME (using G.SDH=
SL VIC, skiping the older Internet Router that used to terminate the VPN) a=
nd a Ipsec tunnel to the same destination as before (Cisco PIX) I have thes=
e facts:
1. IP phones locally and on the far end can comunicate with out problems as=
before.
2. Far end IP phones can be called via the PSTN and they can call through p=
stn but always we have one-way voice problem. Far end hears nothing but PST=
N hears them (other call controll seems to work, like ringback, remote pho=
ne is ringing etc.) 3. I tried to include the CME Internet IP address to th=
e tunnel, so it would be included when the router itself was orginating pac=
kets but that didn=B4t change anything.
Anyone had this issue or have faced this particular problem ?
For clarification, the schenario is like this:
PSTN----Local IP phones---CME<------------------<WAN/Internet>------------>=
PIX-----remote IP phones<registerd to the CME =
regards. Kristjan Edvardsson
CCNP - MCSE
Sensa ehf. cisco Silver Partner
________________________________________
_______
cisco-voip mailing list
cisco-voip@puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-voip
| |
| bbeab539 2005-09-19, 6:25 pm |
| Can you post example configs of your work arounds? It would be greatly apprecitated.
quote:
Originally posted by Kristjįn Ólafur Ešvaršsson
I have a solution now. A sort of a workaround.
We did the following to workaround this problem:
1. addedd a looopback interface to the CME
2. Included this loopback to the ipsec tunnel
3. Created a policy route map pointing to next hop out of the CME router wh=
en the remote networks are looked up.
4. Created a static route to the remote networks pointing at the loopback i=
nterface.
We have done this in 2 locations and it works like a charm.
regards. Kristjan Edvardsson
Sensa ehf. cisco Silver Partner =
-----Original Message-----
From: Voll, Scott [mailto:Scott.Voll@wesd.org] =
Sent: 23. ma=ED 2005 21:49
To: Kristj=E1n =D3lafur E=F0var=F0sson; cisco-voip@puck.nether.net
Subject: RE: [cisco-voip] One Way RTP voice problems using CME
Sounds like a pix problem. Are you allowing traffic back?
-----Original Message-----
From: cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.ne=
ther.net] On Behalf Of Kristj=E1n =D3lafur E=F0var=F0sson
Sent: Monday, May 23, 2005 2:33 PM
To: cisco-voip@puck.nether.net
Subject: [cisco-voip] One Way RTP voice problems using CME
Hi all,
I have this One Way Voice issue with CME through PSTN PRI. This happened af=
ter I started connecting Internet straight to the CME instead of letting an=
other router do it.
Past:
I have been using cisco 2811 and CME for some time. The CME registers other=
remote IP phones over ipsec tunnel terminated at a same network router. Th=
ose far end phones use the PSTN on my site with success.
Present:
However when I set up a Internet connection straight to my CME (using G.SDH=
SL VIC, skiping the older Internet Router that used to terminate the VPN) a=
nd a Ipsec tunnel to the same destination as before (Cisco PIX) I have thes=
e facts:
1. IP phones locally and on the far end can comunicate with out problems as=
before.
2. Far end IP phones can be called via the PSTN and they can call through p=
stn but always we have one-way voice problem. Far end hears nothing but PST=
N hears them (other call controll seems to work, like ringback, remote pho=
ne is ringing etc.) 3. I tried to include the CME Internet IP address to th=
e tunnel, so it would be included when the router itself was orginating pac=
kets but that didn=B4t change anything.
Anyone had this issue or have faced this particular problem ?
For clarification, the schenario is like this:
PSTN----Local IP phones---CME<------------------<WAN/Internet>------------>=
PIX-----remote IP phones<registerd to the CME =
regards. Kristjan Edvardsson
CCNP - MCSE
Sensa ehf. cisco Silver Partner
________________________________________
_______
cisco-voip mailing list
cisco-voip@puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-voip
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