[asterisk-bugs] [JIRA] (ASTERISK-21824) SIP INVITES from Telphin broke in 1.8.21

[Arcadiy Ivanov (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-21824?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=206868#comment-206868 ] 

Arcadiy Ivanov commented on ASTERISK-21824:
-------------------------------------------

@Walter,

That's an interesting thought. I had problems with pf on the firewall dropping fragmented UDP packets without reassembly exclusively from Telphin, but since I switched to IPFW the problem is gone. 

The tcpdump was taken on the pbx1 machine behind the firewall, i.e. the packets have arrived into the eth0 interface and I have confirmed that what arrives on WAN iface of the fw is what arrives onto the eth0 of the pbx1 (which has its own iptables to only accept connections from specific SIP peers).

Let me fiddle with the iptables on pbx1, and I'll post an update.
                
> SIP INVITES from Telphin broke in 1.8.21
> ----------------------------------------
>
>                 Key: ASTERISK-21824
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-21824
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/General
>    Affects Versions: 1.8.21.0
>         Environment: Linux pbx1.home.ivanovy.net 2.6.18-348.6.1.el5 #1 SMP Tue May 21 15:34:22 EDT 2013 i686 i686 i386 GNU/Linux
>            Reporter: Arcadiy Ivanov
>         Attachments: tcpdump.log
>
>
> Upgraded from 1.8.20 to 1.8.21. All SIP invites from Telphin no longer processed and are nowhere to be found in console with "sip set debug on", "core set verbose 999" and "core set debug 999". Other providers (Voicepulse and Gafachi) work fine.
> Out of all providers used in this system Telphin is the only one that has Record-Route in its invites. I highly suspect the issue may be with r379392 that changed the way Record-Route is parsed right after 1.8.20 was released.
> Attached is the tcpdump on the Asterisk box of the incoming SIP INVITES that are dropped silently.

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