Re: [asterisk-users] Failed SIP registration kicks registered device off?

2011-01-12 Thread James Lamanna
HI Ye,

On Mon, Jan 10, 2011 at 10:04 AM, Ye Liu jaux...@gmail.com wrote:
 Hi folks,

 I'm currently running a modified version of Asterisk 1.6.1.1, I
 observed an unexpected behavior of my system today:

 1. SIP device A successfully registered extension 100;
 2. SIP device B tried to register extension 100 but with wrong
 password, so registration failed;
 3. A then showed it was unregistered!

 Failed registration of device B shouldn't kick A off, I expect A stay
 online and work properly in this situation.

 Could anyone confirm this? Because my asterisk is modified, I'm not
 sure this behavior is in vanilla asterisk or it is caused by my own
 code.

AFAIK, Asterisk does not support simultaneous registration from more
than one device on the same extension.
That is why you are seeing this behavior. As soon as B tries to
register, the registration of A is 'overwritten'.
If you need this behavior, you might want to try and look into a
different UA Registrar like OpenSIPS, which supports this.


 Thank you!

 --
 Ye Liu (AKA @jaux)

-- James

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Re: [asterisk-users] Failed SIP registration kicks registered device off?

2011-01-12 Thread Kevin P. Fleming

On 01/12/2011 10:07 AM, James Lamanna wrote:

HI Ye,

On Mon, Jan 10, 2011 at 10:04 AM, Ye Liujaux...@gmail.com  wrote:

Hi folks,

I'm currently running a modified version of Asterisk 1.6.1.1, I
observed an unexpected behavior of my system today:

1. SIP device A successfully registered extension 100;
2. SIP device B tried to register extension 100 but with wrong
password, so registration failed;
3. A then showed it was unregistered!

Failed registration of device B shouldn't kick A off, I expect A stay
online and work properly in this situation.

Could anyone confirm this? Because my asterisk is modified, I'm not
sure this behavior is in vanilla asterisk or it is caused by my own
code.


AFAIK, Asterisk does not support simultaneous registration from more
than one device on the same extension.
That is why you are seeing this behavior. As soon as B tries to
register, the registration of A is 'overwritten'.
If you need this behavior, you might want to try and look into a
different UA Registrar like OpenSIPS, which supports this.


His point is valid though... A's registration should not have been 
overwritten until B *successfully* registered. A failed attempt to 
register should have no effect on the existing registration.


--
Kevin P. Fleming
Digium, Inc. | Director of Software Technologies
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
skype: kpfleming | jabber: kflem...@digium.com
Check us out at www.digium.com  www.asterisk.org

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Re: [asterisk-users] Failed SIP registration kicks registered device off?

2011-01-12 Thread Roger Burton West
On Wed, Jan 12, 2011 at 10:13:22AM -0600, Kevin P. Fleming wrote:

His point is valid though... A's registration should not have been
overwritten until B *successfully* registered. A failed attempt to
register should have no effect on the existing registration.

Indeed, the avenue for a brute-force DoS (absent something like
fail2ban) is fairly obvious.


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[asterisk-users] Failed SIP registration kicks registered device off?

2011-01-10 Thread Ye Liu
Hi folks,

I'm currently running a modified version of Asterisk 1.6.1.1, I
observed an unexpected behavior of my system today:

1. SIP device A successfully registered extension 100;
2. SIP device B tried to register extension 100 but with wrong
password, so registration failed;
3. A then showed it was unregistered!

Failed registration of device B shouldn't kick A off, I expect A stay
online and work properly in this situation.

Could anyone confirm this? Because my asterisk is modified, I'm not
sure this behavior is in vanilla asterisk or it is caused by my own
code.

Thank you!

-- 
Ye Liu (AKA @jaux)

http://jaux.net

--
_
-- Bandwidth and Colocation Provided by http://www.api-digital.com --
New to Asterisk? Join us for a live introductory webinar every Thurs:
   http://www.asterisk.org/hello

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To UNSUBSCRIBE or update options visit:
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