I believe Address Family (AF) 2 is IPv6 [1]. The protocol number is not the index of the listener, it refers to the actual protocol being used. I think that proto 3 in OpenSIPS is TLS, but I don’t have a reference for that one.
So the error is saying you are attempting to send a message to an IPv6 address using TLS, but you have no listener defined for that combination. [1] - https://www.iana.org/assignments/address-family-numbers/address-family-numbers.xhtml Ben Newlin From: Devel <[email protected]> on behalf of Donat Zenichev <[email protected]> Reply-To: OpenSIPS devel mailling list <[email protected]> Date: Monday, April 8, 2019 at 8:39 AM To: "[email protected]" <[email protected]> Subject: [OpenSIPS-Devel] PROTO numbers Hi there. Lately I came across such messages in opensips logs: "ERROR:tm:update_uac_dst: failed to fwd to af 2, proto 3 (no corresponding listening socket)" The error is pretty descriptive and says that certain request is unable to be forwarded, since of absence of needed socket. But I cannot get what means: "to af 2" - I found, that it's a member of this structure uac->request.dst.to.s.sa_family , but still no wonder what means number "2". And "proto 3" - does it correlate to a number of a listener defined in my openips configuration file? And if yes, does the count starts at 0 or at 1 ? Thanks for help in advance! -- -- BR, Donat Zenichev
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