buglwIP - A Lightweight TCP/IP stack - Bugs: bug #53667, ARP table max size is to small

 
 

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bug #53667: ARP table max size is to small

Submitter:  hanhui <hanhui03>
Submitted:  Mon 16 Apr 2018 09:00:24 AM UTC
   
 
Category:  ARP Severity:  3 - Normal
Item Group:  Change Request Status:  Fixed
Privacy:  Public Assigned to:  goldsimon
Open/Closed:  Closed Planned Release:  None
lwIP version:  git head

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Fri 18 May 2018 07:20:40 AM UTC, comment #6: 

This should be fixed now. Just increase ARP_TABLE_SIZE. Maximum value is now 0x7fff.

Simon Goldschmidt <goldsimon>
Group administrator
Mon 14 May 2018 05:41:58 AM UTC, comment #5: 

Sorry, I did not have too much time for this lately. I started working on this already. Using an s16_t is quite easy to do.

Simon Goldschmidt <goldsimon>
Group administrator
Sun 13 May 2018 11:36:13 PM UTC, comment #4: 

Hello?

hanhui <hanhui03>
Fri 20 Apr 2018 01:48:13 AM UTC, comment #3: 

Hi Simon
I need at least 256 entries. ARP table structure, I suggest that you can try the hash table. :)

hanhui <hanhui03>
Thu 19 Apr 2018 06:31:54 AM UTC, comment #2: 

Ping?

Simon Goldschmidt <goldsimon>
Group administrator
Tue 17 Apr 2018 12:11:05 PM UTC, comment #1: 

How much entries would you need? The reason I ask is that the ARP table is implemented as a really simple array that is iterated completely for outgoing packets (unless the addrhint matches, which can't match for routing). Is this performance OK for your application?

Simon Goldschmidt <goldsimon>
Group administrator
Mon 16 Apr 2018 09:00:24 AM UTC, original submission:  

I used Lwip as a router, but ARP table max size (127) is to small.

hanhui <hanhui03>

 

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    Follow 3 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2018-05-18 goldsimon StatusNone Fixed
        Assigned toNone goldsimon
        Open/ClosedOpen Closed

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