Wireshark mailing list archives
Re: New Dissector only applied to first packet
From: Jan Willamowius <jan () willamowius de>
Date: Fri, 2 Nov 2012 22:25:04 +0100
Guy Harris wrote:
My dissector only handles UDP packets, but strangely the stop-packets are all TCP packets and I have verified that my dissector never even gets called for them.A dissector for one protocol can set up future (in the sense of "later in the capture") packets to or from certain endpoints to be dissected as a particular protocol. This is used, for example, for protocols such as SIP, which initiate a session and specify "use port XXX" for that session, so that future UDP traffic to or from port XXX should be dissected as RTP for that session. What protocol(s) are in the TCP packets in question?
Thats it! I'm doing a dissector to decode the H.460.19 RTP multiplexing used by H.323 and the packets I have to ignore contain openLogicalChannel messages that probably set up rules to decode future packets as RTP. Is there a way to override these rules for future packets ? Or is the only way to adapt the dissector for H.323 to auto detect when RTP multiplexing is used ? To start out I was planning to use a manual Decode As instead of the more difficult auto-detect. Regards, Jan -- Jan Willamowius, jan () willamowius de, http://www.willamowius.de/ ___________________________________________________________________________ Sent via: Wireshark-dev mailing list <wireshark-dev () wireshark org> Archives: http://www.wireshark.org/lists/wireshark-dev Unsubscribe: https://wireshark.org/mailman/options/wireshark-dev mailto:wireshark-dev-request () wireshark org?subject=unsubscribe
Current thread:
- New Dissector only applied to first packet Jan Willamowius (Nov 02)
- Re: New Dissector only applied to first packet Guy Harris (Nov 02)
- Re: New Dissector only applied to first packet Jan Willamowius (Nov 02)
- Re: New Dissector only applied to first packet Guy Harris (Nov 02)
- Re: New Dissector only applied to first packet Jan Willamowius (Nov 02)
- Re: New Dissector only applied to first packet Guy Harris (Nov 04)
- Re: New Dissector only applied to first packet Jan Willamowius (Nov 05)
- Re: New Dissector only applied to first packet Anders Broman (Nov 06)
- Re: New Dissector only applied to first packet Jan Willamowius (Nov 06)
- Re: New Dissector only applied to first packet Anders Broman (Nov 07)
- Re: New Dissector only applied to first packet Jan Willamowius (Nov 02)
- Re: New Dissector only applied to first packet Guy Harris (Nov 02)