[asterisk-bugs] [JIRA] (ASTERISK-22852) Error decoding H245 message - ooh323c

[Gabriele Odone (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-22852?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=211770#comment-211770 ] 

Gabriele Odone commented on ASTERISK-22852:
-------------------------------------------

Hi Alexander,

I will try faststart and h245tunnelling, however I note that the TPKT packet behavior is not consistent, for example I attach a trace showing the full traffic between H323 client "Polycom RMX" and Asterisk, there is no such packet.

KR
Gabriele
                
> Error decoding H245 message - ooh323c
> -------------------------------------
>
>                 Key: ASTERISK-22852
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-22852
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Addons/chan_ooh323
>    Affects Versions: 11.4.0, 11.6.0, 12.0.0-beta1
>         Environment: RH 5.5
>            Reporter: Gabriele Odone
>         Attachments: failure.pcap, success.pcap
>
>
> Environment:
> - Asterisk 11.4
> - H323 trunk between Asterisk and "Polycom CMA" (H323 Gatekeeper) using
> ooh323c module.
> - An H323 MCU  ("Polycom RMX") is registered to "Polycom CMA" gatekeeper.
> When H323 calls are placed by Polycom RMX, the following lines are written
> in /var/log/asterisk/h323_log:
> =========================
> 16:42:04:417  Asn1Error: -2 at ooh323c/src/decode.c:67
> 16:42:04:418  Error decoding H245 message (incoming, ooh323c_2)
> =========================
> The same code generating this error is also in the latest 11.6 and 12.0
> beta.
> Symptom: From the "Polycom RMX" side, the call is heard ringing. From the
> SIP side, the call is received and answered. See attached tcpdump example: failure.pcap
> If, instead of placing the call from the "Polycom RMX", I place the call
> from another H323 endpoint (registered to the same H323 Gatekeeper,
> "Polycom CMA"), the call goes through without such error (example: success.pcap).
> I suppose it is a H245 parsing error.
> In the attached tcpdumps:
> 10.44.1.60 = SIP client
> 10.100.202.88 = Asterisk server
> 10.71.0.55 = H323 Gatekeeper (Polycom CMA)
> 10.71.0.51 = H323 "client" (Polycom RMX) registered to H323 gatekeeper
> 10.44.1.156 = H323 client (Polycom CMA Desktop) registered to H323 gatekeeper

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