# Re: \[PATCH net-next v2\] ipv6 addrconf: Implemented enhanced DAD (RFC7527)

- From: David Miller \<davem@davemloft.net\>
- Date: 2016-11-30 15:58:10 
- List: netdev
- Page: https://ratatoskr.run/netdev/2016/11/11036609
- Thread: https://ratatoskr.run/netdev/2016/11/11036262/t.md

```text
From: Erik Nordmark <redacted>
Date: Mon, 28 Nov 2016 15:26:05 -0800

> Implemented RFC7527 Enhanced DAD.
> IPv6 duplicate address detection can fail if there is some temporary
> loopback of Ethernet frames. RFC7527 solves this by including a random
> nonce in the NS messages used for DAD, and if an NS is received with
> the
> same nonce it is assumed to be a looped back DAD probe and is ignored.
> RFC7527 is enabled by default. Can be disabled by setting both of
> conf/{all,interface}/enhanced_dad to zero.
> 
> Signed-off-by: Erik Nordmark<redacted>
> Signed-off-by: Bob Gilligan<redacted>"
> ---
> 
> v2: renamed sysctl and made it default to true, plus minor code review
> fixes

This doesn't apply to net-next, please respin.

Also, please format your signoffs correctly, there must be a space
between your name and the <> enclosed email address.

I always wonder why people elide spaces when formatting text, is
there a global shortage of space characters that I am unaware of?
```