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Re: [Question #201484]: In what situation will the rand change when decompressing

To: rohc@xxxxxxxxxxxxxxxxxxx
From: Didier Barvaux <question201484@xxxxxxxxxxxxxxxxxxxxx>
Date: Tue, 26 Jun 2012 13:30:57 -0000
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Question #201484 on rohc changed:
https://answers.launchpad.net/rohc/+question/201484

    Status: Open => Answered

Didier Barvaux proposed the following answer:
Hi qingbaibai,

The RND flag may change in extension 3, more especially in the IP header
flags. The packet will be parsed as UOR-2-ID (or UOR-2-RTP), and if it
contains a RND flag whose value is different from the one stored in
context, then the packet will be reparsed as UOR-2-RTP (or UOR-2-ID).

Last week I found that there are some problems in the library related to
the above algorithm for streams with double IP headers. I have yet to
analyze the problem and report it on the bugtracker. Did you find a
problem on that part too?

Regards,
Didier

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