IPv6 Duplicate Address Detection

Tom Evans tevans.uk at googlemail.com
Thu Jul 8 14:30:04 UTC 2010

On Thu, Jul 8, 2010 at 3:53 AM, Krishna <Krishna.Mohan at my.panasonic.com> wrote:
> Hi,
> I am implementing a user space program to create and assign IPv6 address to
> a linux host.
> I am able to create and assign the IP successfully. But, if i am assigning
> the duplicate address,
> still the address gets assigned. I understand the kernel is handling the DAD
> and reporting to kernel log.
> Is there any way, i can use IOCTL to get the TENTATIVE flag value and delete
> the IP if it is duplicate.
> By the way, i use IOCTL system call to assign the IP too.
> I went through some posts in freebsd-net where they have mentioned about
> which gives the flags value where the TENTATIVE flag value can be plooed.
> I tried to use the same API in my user program but failed.
> Can somebody post me the working sample code of SIOCGIFAFLAG ioctl ?
> Thanks,
> -Krishna

Linux != FreeBSD.



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