[OpenSIPS-Users] opensips 1.7+tls problems

Jarle Lervik jarle.lervik at sipcom.no
Thu Oct 13 17:20:03 CEST 2011

Haven't tested Kamailio, but my solution was to downgrade to 1.6.4. It
worked well there.
Thanks for the info.


> Message: 2
> Date: Thu, 13 Oct 2011 10:38:24 +0100
> From: "yufei.tao" <yufei.tao at redembedded.com>
> Subject: Re: [OpenSIPS-Users] opensips 1.7+tls problems
> To: users at lists.opensips.org
> Message-ID: <4E96B190.8040605 at redembedded.com>
> Content-Type: text/plain; charset=ISO-8859-1
> Hi
> As I've got no help on this since I posted this problem, I've been
> that opensips users are mostly on UDP and TLS problems are known but not
> shared by many.
> For your information, I've been looking at Kamailio (3.1.5), which is
> to have better TLS support (non-blocking TCP). Initial stress tests did
> that it is far better in handling TLS connections, especially when you
> many of them coming in at the same time, which could get opensips into the
> unrecoverable 'bad record mac' errors easily, while Kamailio had no
> at all. So we are moving to Kamailio. By the way, this 'bad record mac'
> problem has made me to write a script that looks out for this error and
> restart opensips automatically when that happens. But after a restart,
> opensips may get into the errors again. So we've seen that it's been
> restarted non-stop when we had many sip clients. So we had to turn off
> some of them so the restarting cycle could eventually stop.
> As far as my very limited experience on Kamailio is concerned, it has a
> organized config file supporting 'defines' which I like very much. You
> need to compile the TLS support as the debian packages already have it in,
> which is very convenient as TLS is a 'must' for us. I do realize its
dialog module
> is not as advanced as opensips's in terms of calculating call durations
etc, so
> you'll have to use the mysql procedure to handle this as what you used to
> with opensips.
> That's what I've been doing to 'solve' this problem. But I'd very much
> appreciate it if you could share your experience, or any good/bad things
> know about Kamailio, or any other open source sip servers.
> Yufei

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