Forum Discussion

Mohit_Rathee's avatar
Mohit_Rathee
Icon for Nimbostratus rankNimbostratus
Jul 07, 2019

HTTP Post across Mutiple TCP Segment

When attempting to send HTTP post request across multiple TCP segments the request fails. We receive a response that HTTP Body is missing from the server. . But if i send the same HTTP post reques...
devops
HTTP_POST
iRules
LTM
Segmentation
tcp
Dario_Garrido's avatar
Dario_Garrido
Icon for MVP rankMVP
Jul 09, 2019

L4 (HTTP) work differently than Standard (HTTP). The first one is in read-only mode and does not impact traffic.

https://support.f5.com/csp/article/K16446

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As I told you, F5 discard traffic which is not HTTP RFC-compliant and I suspect that your device is dealing each packet individually (so the second will be discarded for this reason).

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Could you clarify better what kind of fragmentation are you experiencing here?

Have both packets got http header (you are using chunking technique) or is it an IP/TCP fragmentation?

​

KR,

Dario.

  • Mohit_Rathee's avatar
    Mohit_Rathee
    Icon for Nimbostratus rankNimbostratus
    Jul 09, 2019

    The HTTP Traffic is TCP fragmented. Two TCP segments are created .

    No only one packet(TCP segment) contains the HTTP headers the other TCP segment contains only HTTP Data.

    Wire-shark Snips are attached.