[OpenSIPS-Users] interaction between fix_nated_contact(), topology_hiding() and serial forking

[Liviu Chircu]

Hi!

On 28.10.2020 18:49, Jeff Pyle wrote:
> First, I lose the updated Contact from fix_nated_contact() after a 
> serial fork.  Is this expected?
I would assume the `fix_nated_contact()` lump changes get backed up into 
shared memory, then made available during the failure_route. Anything 
else and IMHO it looks like a bug.  Opinions welcome.
>
> Second, I've determined that if the Contact URI is not wrapped in <>, 
> that's when I get the "second attempt to change URI Contact" error 
> when running fix_nated_contact() in the branch_route[]. This feels 
> like a bug.

This one is a known, documented issue.  Long story short: you should 
always call fix_nated_contact() _before_ topology_hiding().  See this 
truth table for more info [1].

[1]: https://github.com/OpenSIPS/opensips/issues/2172

-- 
Liviu Chircu
www.twitter.com/liviuchircu | www.opensips-solutions.com

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