buglwIP - A Lightweight TCP/IP stack - Bugs: bug #47601, wrog NS request at DAD

 
 

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bug #47601: wrog NS request at DAD

Submitter:  abhishek ambure <abhiambure>
Submitted:  Fri 01 Apr 2016 05:43:35 PM UTC
   
 
Category:  IPv6 Severity:  3 - Normal
Item Group:  Faulty Behaviour Status:  Fixed
Privacy:  Public Assigned to:  goldsimon
Open/Closed:  Closed Planned Release:  None
lwIP version:  1.4.1

Sat 07 May 2016 04:42:40 AM UTC, comment #2: 

after setting an address valid no need to semd Neignbour solicition for the same address.

abhishek ambure <abhiambure>
Wed 27 Apr 2016 08:23:48 AM UTC, comment #1: 

RFC4861, 4.4 says "The link-layer address for the sender.  MUST NOT be included when the source IP address is the unspecified address."

Fixed, thanks for reporting.

However, we now do not send NS with the "Source link-layer address" included. It seems like we should send one NS after setting an address valid?

Simon Goldschmidt <goldsimon>
Group administrator
Fri 01 Apr 2016 05:43:35 PM UTC, original submission:  

NS packets sent at DAD time are containing link layer address options, so in the nd6_send_ns(){/lwip/src/ipv6/nd6.c} link layer address options has to be added only of source address is not the unspecified address.

abhishek ambure <abhiambure>

 

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

Attached Files
file #36816:  nd6_old.c added by abhiambure (59KiB - text/x-csrc)
file #36817:  ns_nd6_patch.txt added by abhiambure (616B - text/plain)
file #36818:  nd6.c added by abhiambure (59KiB - text/x-csrc)

 

Depends on the following items: None found

Items that depend on this one: None found

 

Carbon-Copy List
  • -email is unavailable- added by goldsimon (Posted a comment)
  • -email is unavailable- added by abhiambure (Submitted the item)
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    Follow 7 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2016-07-11 goldsimon StatusNeed Info Fixed
        Open/ClosedOpen Closed
    2016-04-27 goldsimon StatusNone Need Info
        Assigned toNone goldsimon
    2016-04-01 abhiambure Attached File- Added nd6_old.c, #36816
        Attached File- Added ns_nd6_patch.txt, #36817
        Attached File- Added nd6.c, #36818

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