buglwIP - A Lightweight TCP/IP stack - Bugs: bug #62138, Minimum frame length

 
 

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bug #62138: Minimum frame length

Submitter:  To Tamir <totamir>
Submitted:  Thu 03 Mar 2022 01:40:55 PM UTC
   
 
Category:  None Severity:  3 - Normal
Item Group:  None Status:  Wont Fix
Privacy:  Public Assigned to:  goldsimon
Open/Closed:  Closed Planned Release:  None
lwIP version:  2.1.1

Thu 03 Mar 2022 08:31:12 PM UTC, comment #1: 

Achieving the minimum frame length is up to the netif driver, as it is a "limitation" of the underlying transport medium.

You can just add the padding in your driver.

Simon Goldschmidt <goldsimon>
Group administrator
Thu 03 Mar 2022 01:40:55 PM UTC, original submission:  

My ethernet controller require minimum frame length equal to 60 bytes (and then adds CRC on the fly). I modified SIZEOF_ETHARP_HDR to 46, so my controller send ARP frames correctly. But I have problem with other frames. Some frames generated by function ethernet_output has 58 bytes (propably ACK), so my ethernet controller ignore them. Is there some possibility to set minimum frame length?

To Tamir <totamir>

 

(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

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Depends on the following items: None found

Items that depend on this one: None found

 

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    Follow 3 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2022-03-03 goldsimon StatusNone Wont Fix
        Assigned toNone goldsimon
        Open/ClosedOpen Closed

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