[asterisk-bugs] [JIRA] (ASTERISK-25065) SRTP failing over time

Rusty Newton (JIRA) noreply at issues.asterisk.org
Mon Jun 1 18:27:32 CDT 2015


    [ https://issues.asterisk.org/jira/browse/ASTERISK-25065?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=226422#comment-226422 ] 

Rusty Newton commented on ASTERISK-25065:
-----------------------------------------

You mentioned that this starts failing over time.
When following your replication guide - about how many calls does it take to generally see the failure? Are we talking dozens? Or hundreds?



> SRTP failing over time
> ----------------------
>
>                 Key: ASTERISK-25065
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-25065
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/SRTP
>    Affects Versions: 13.3.2
>         Environment: Centos 6.5 (Current version: 6.12.65-27) running 4GB ram & dual CPU's. VOIP PHONES: Polycom IP670
>            Reporter: Sam Ultima
>            Assignee: Rusty Newton
>         Attachments: extensions_additional.conf, extensions.conf, extensions_custom.conf, extensions_override_freepbx.conf, fail2ban, fail2ban.0, full, full.0, replication.txt, sip_additional.conf, sip.conf, sip_custom_post.conf
>
>
> From all appearances, SRTP appears to function except over time, calls begin failing. Temp solution is to restart phone and resume calls after registration.
> Debug shows the following errors:
> 2015-05-05 15:32:51] WARNING[3055][C-00000006] sdp_srtp.c: Unacceptable a=crypto tag: 13
> [2015-05-05 15:32:51] WARNING[3055][C-00000006] chan_sip.c: Rejecting secure audio stream without encryption details: audio 2228 RTP/SAVP 8 0 9 127
> SIP/2.0 488 Not acceptable here



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