rohc

IPv6/IPv6/TCP profile

Asked by saadan ansari on 2012-10-03

Hi Didier,

I have installed the TCP profile and it works fine for IPv6/TCP, but I have difficulties with IPv6/IPv/TCP.
Do you know if a 2 level IPv6 with TCP have been tested?

I look at the output of the decompressor and it is malformed.

For TCP I use nc as client and server on two different Linux machines.

Thanx
Saadan

Question information

Language:: English Edit question

Status:: Expired

For:: rohc Edit question

Assignee:: No assignee Edit question

Last query:: 2012-10-04

Last reply:: 2012-10-20

Link existing bug

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Didier Barvaux (didier-barvaux) said on 2012-10-03:

Saadan,

FWX answered you on the mailing list [1]:

| Hello Saadan,
|
| Support of TCP was tested with various encapsulation : IPvx/IPvx, so I am very surprised reading your question.
|
| Can you send us trace of your program and perhaps capture file (tcpdump or WireShark pcap file) to help us ?
|
| Best regards,
|
| FWX.

Didier

[1] https://lists.launchpad.net/rohc/msg00576.html

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saadan ansari (ansarisaadan) said on 2012-10-04:

Hi Didier,

The error is deterministic.

TCP handshake is ok.
First TCP segment is ok. ACK from peer TCP is ok.
Second TCP segment is ok. ACK from peer is not OK.

After Decompression the payload length of the outter IPv6 header is not correct. ( It is equal to the payload length of the inner IPv6 header!)

The total length of the decompressed packet is correct.

Next week I will send you the wireshark pcap file.

Thanx
Saadan

Revision history for this message

saadan ansari (ansarisaadan) said on 2012-10-04:

Hi Didier,

Please find attachen the full log files.

TCP server: 4 log files
TCP client: 4 log files

I hope this can help.

Thanx
Saadan

________________________________
From: Didier Barvaux <email address hidden>
To: <email address hidden>
Sent: Wednesday, October 3, 2012 7:16 PM
Subject: Re: [Question #210242]: IPv6/IPv6/TCP profile

Your question #210242 on rohc changed:
https://answers.launchpad.net/rohc/+question/210242

Didier Barvaux posted a new comment:
Saadan,

FWX answered you on the mailing list [1]:

Didier

[1] https://lists.launchpad.net/rohc/msg00576.html

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