[Asterisk-Dev] Re: 482 Loop Detected problem

[Doug Meredith]

"Olle E. Johansson" <oej at edvina.net> wrote:

>I've been working hard on improving our support of SIP so that we can
>avoid these kind of things to happen. There are still situations where
>it happens and I am eager to find those. One of the fixes in 1.2 is a
>much improved support of SIP tags, so if you turn on pedantic, chances
>are very low that this will happen without a cause.

This is very interesting to me.  The sample "sip.conf" in 1.2 has the
following comment for this option:  "Enable slow, pedantic checking
for Pingtel and multiline formatted headers for strict SIP
compatibility."  I never really understood what that meant, and
basically ignored it.  If I understand your above comment correctly,
this option will actually cause Asterisk to be more compliant with the
SIP standard.  Is that correct?

>> It appears that there is a simple "if" statement in the code that does
>> this check and reports the error.  You could try simply commenting out
>> the check and see what happens.  Someone previously mentioned that
>> they tried this and got a core dump, but it might still be worth
>> looking at.
>
>That is a very dangerous advice. Let's get a call log and analyze
>what's really going on, what kind of packet the forwarding phone is sending.

I think you may have misunderstood what I meant by that.  I wasn't
suggesting that anybody should just comment out a few lines of code
and throw it into production without testing.

Doug
-- 
Doug Meredith (doug.meredith at systemguard.com)
SystemGuard - Oracle remote support
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