Re: nd6_na_input: duplicate IP6 address

[Mike Pumford <mpumford%mudcovered.org.uk@localhost>]

On 11/05/2019 07:48, Roy Marples wrote:
> I've had some more information about this and suspect that it's dhcpcd 
> NA messages that are being looped back in.
>
> If you stop dhcpcd, do the messages go away?
Just tested that now. With dhcpcd runnning I get a burst of 3-6 messages 
every 10 mins. Its now been runnning without dhcpcd for about 20 mins 
and I've not seen any further messages. I'll leave it running it that 
state for a while and report back if anything changes.

As an additional data point I have 3 systems at the same level.

One is staticaly addressed and doesn't see these messages. 2 use dhcpcd 
and do. All of them used different variants of the intel(wm) adapters 
but they are otherwise quite different.

dhcpdc System 1:
cpu0 at mainbus0 apid 0
cpu0: Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz, id 0x306c3
cpu0: package 0, core 0, smt 0
wm0 at pci0 dev 25 function 0: I218 V Ethernet Connection (rev. 0x00)
wm0: interrupting at msi2 vec 0

dhcpdc System 2:
cpu0 at mainbus0 apid 0
cpu0: AMD GX-412TC SOC                               , id 0x730f01
cpu0: package 0, core 0, smt 0
wm0 at pci1 dev 0 function 0: I210 Ethernet (Copper, FLASH less) (rev. 0x03)
wm0: for TX and RX interrupting at msix0 vec 0 affinity to 0
wm0: for TX and RX interrupting at msix0 vec 1 affinity to 1
wm0: for TX and RX interrupting at msix0 vec 2 affinity to 2
wm0: for TX and RX interrupting at msix0 vec 3 affinity to 3
wm0: for LINK interrupting at msix0 vec 4

static system:
cpu0 at mainbus0 apid 0
cpu0: Intel(R) Core(TM)2 Quad CPU    Q6600  @ 2.40GHz, id 0x6fb
cpu0: package 0, core 0, smt 0
wm0 at pci4 dev 3 function 0: Intel i82541PI 1000BASE-T Ethernet (rev. 0x05)
wm0: interrupting at ioapic0 pin 22
wm0: 32-bit 33MHz PCI bus