buglwIP - A Lightweight TCP/IP stack - Bugs: bug #33551, ARP entries may time out although...

 
 

You are not allowed to post comments on this tracker with your current authentication level.

bug #33551: ARP entries may time out although in use

Submitter:  Simon Goldschmidt <goldsimon>
Submitted:  Mon 13 Jun 2011 09:22:24 AM UTC
   
 
Category:  ARP Severity:  3 - Normal
Item Group:  None Status:  Fixed
Privacy:  Public Assigned to:  goldsimon
Open/Closed:  Closed Planned Release:  None
lwIP version:  CVS Head

Thu 21 Jul 2011 06:36:20 PM UTC, comment #1: 

Fixed by
- re-sending an ARP request if an entry is used for TX which is about to time out (1 minute before),
- re-sending ARP requests for this entry from etharp_tmr until it times out or receives an answer

I also sped up the default TX path a little. From reading my disassembled code, it should now be faster than before although code was added (I don't call find_entry() for stable entries).

Simon Goldschmidt <goldsimon>
Group administrator
Mon 13 Jun 2011 09:22:24 AM UTC, original submission:  

Since we disabled etharp_ip_input() by default, ARP entries can time out even if they are in use by IP traffic.

To circumvent this, stable entries about to expire should be re-requested when in use through IP.

Simon Goldschmidt <goldsimon>
Group administrator

 

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

No files currently attached

 

Depends on the following items: None found

Items that depend on this one: None found

 

Carbon-Copy List
  • -email is unavailable- added by goldsimon (Submitted the item)
  •  

    There are 0 votes so far. Votes easily highlight which items people would like to see resolved in priority, independently of the priority of the item set by tracker managers.

     

    Follow 3 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2011-07-21 goldsimon StatusNone Fixed
        Assigned toNone goldsimon
        Open/ClosedOpen Closed

    Back to the top

    Powered by Savane 3.13-02a9.
    Corresponding source code