[gnutls-devel] GnuTLS | gnutls-cli starttls connection to XMPP fails with 'error receiving <proceed' (#697)

[Development of GNU's TLS library]

New Issue was created.

Issue 697: https://gitlab.com/gnutls/gnutls/issues/697
Author:    Hanno Böck
Assignee:  

I get regular connection errors with GnuTLS and XMPP servers. Please note this is *not* the problem of xmpp client vs. server (there's another bug for this), but a separate problem.

The bug happens irregularly, sometimes I get a failure and the next try it works on the same host, so there seems to be some nondeterminism involved, sometimes connections succeed.

Failure example:
$ gnutls-cli --starttls-proto=xmpp jabber.ccc.de:5222 
Processed 132 CA certificate(s).
Resolving 'jabber.ccc.de:5222'...
Connecting to '146.255.57.229:5222'...
error receiving <proceed: Network is unreachable

$ gnutls-cli --starttls-proto=xmpp conversations.im:5222 
Processed 132 CA certificate(s).
Resolving 'conversations.im:5222'...
Connecting to '78.47.177.120:5222'...
error receiving <proceed: Success

$ gnutls-cli --starttls-proto=xmpp schokokeks.org:5222
Processed 132 CA certificate(s).
Resolving 'schokokeks.org:5222'...
Connecting to '178.63.68.96:5222'...
error receiving <proceed: Network is unreachable

There was a previous thread on the mailing list about what sounds like a similar problem:
https://lists.gnupg.org/pipermail/gnutls-devel/2017-July/008470.html

But the problem persists in the latest version of gnutls (3.6.6).

-- 
Reply to this email directly or view it on GitLab: https://gitlab.com/gnutls/gnutls/issues/697
You're receiving this email because of your account on gitlab.com.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.gnupg.org/pipermail/gnutls-devel/attachments/20190205/773cff79/attachment.html>