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

Submitted by:  abhishek ambure <abhiambure>
Submitted on:  Fri 01 Apr 2016 05:43:35 PM UTC  
 
Category: IPv6Severity: 3 - Normal
Item Group: Faulty BehaviourStatus: Fixed
Privacy: PublicAssigned to: Simon Goldschmidt <goldsimon>
Open/Closed: ClosedPlanned 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>
Project AdministratorIn charge of this item.
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>

 

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

    Date Changed By Updated Field Previous Value => Replaced By
    Mon 11 Jul 2016 07:17:00 PM UTCgoldsimonStatusNeed Info=>Fixed
      Open/ClosedOpen=>Closed
    Wed 27 Apr 2016 08:23:48 AM UTCgoldsimonStatusNone=>Need Info
      Assigned toNone=>goldsimon
    Fri 01 Apr 2016 05:43:36 PM UTCabhiambureAttached File-=>Added nd6_old.c, #36816
      Attached File-=>Added ns_nd6_patch.txt, #36817
      Attached File-=>Added nd6.c, #36818

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