Peter,

 

I don’t believe there is any security features around DDOS prevention, etc.  
For that kind of functionality I’d look towards an Ingate Siperator or Firewall.

 

Mike

 

From: [email protected] 
[mailto:[email protected]] On Behalf Of Peter Selc
Sent: Thursday, August 06, 2009 3:11 AM
To: Robert Joly
Cc: [email protected]
Subject: Re: [sipx-users] remote worker can't register

 

Therefore I tried to register Twinkle softphone behind NAT. As SIP registrar - 
publicIP:port was configured. When the "SIP account -> domain" was set to 
publicIP:port - phone didn't register as well (401). If i set only publicIP - 
phone registered, but can't make any outbound call, because publicIP:5060 is 
not the real public port.

Later I changed the public port to 5060, and Twinkle registered correctly. But 
i would prefer to have it on non-standard port because of security reasons. 
Does sipxecs have some security features (ddos prevention...)? 
Is it known to be a working scenario, if public port is not 5060?

Regards,
Peter


Robert Joly wrote: 

> On Tue, 2009-08-04 at 23:59 +0200, Peter Selc wrote:
> > Hi,
> >
> > attached is the sip log from registrar. The extension
> behind NAT was 202.
>
> >From that log file:
>
> "2009-08-04T21:46:53.644866Z":1194:AUTH:ERR:sipx.company.local
> :SipRegistrarServer:B6CB5B90:SipRegistrar:"Unable to get
> credentials for '[email protected]:7070',
> realm='company.local', user='202'"
>
> The problem is that you're trying to register to the identity
> [email protected]:7070 instead of [email protected] (which
> would have other problems given that you're trying to do it
> from the Internet).
>
> It may be possible to configure that public address and port
> as an alias for your system...
>

Unfortunately, you cannot add port information to a domain alias in
sipXconfig as ports are not technically part of the SIP domain.  Your
phone is providing a To: header with a URI containing port information
and that is the source of your problem.  Strictly speaking, the To:
header generated by your Astraa phone is non-standard as UAs are not
allowed to include port information in To: headers - please refer to
table 1 of RFC 3261 for the details.  You may want to check with Astraa
regarding this problem.

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