# Re: \[PATCH net-next v2\] GRE over IPv6

- From: Dmitry Kozlov \<hidden\>
- Date: 2012-07-29 05:31:34 
- List: netdev
- Page: https://ratatoskr.run/netdev/2012/07/10901005
- Thread: https://ratatoskr.run/netdev/2012/07/10900995/t.md

```text
Eric W. Biederman [ref] wrote:

> Why are you implementing an ioctl based instead of using netlink?
> Last I looked using netlink to create and delete tunnels was more
> flexible and the preferred method and the existing ioctl based methods
> were simply being maintained for backwards compatibility.
I have implemented both ioctl and netlink based.
So if ioctl based is unnecessary it is not difficult to remove this
part.

> Also it appears that you have failed to include the all important
> ip6_gre.c
What do you mean ?
```