# Re: \[PATCH v2\] selftests: net: udpgro\_fwd.sh: Use ping6 on systems where ping doesn't handle IPv6

- From: Jakub Kicinski \<kuba@kernel.org\>
- Date: 2021-12-31 01:31:11 
- List: netdev
- Page: https://ratatoskr.run/netdev/2021/12/11219769
- Thread: https://ratatoskr.run/netdev/2021/12/11219772/t.md

```text
On Fri, 31 Dec 2021 09:10:00 +0800 Jianguo Wu wrote:
> From: Jianguo Wu <redacted>
> 
> In CentOS7(iputils-20160308-10.el7.x86_64), udpgro_fwd.sh output
> following message:
>   ping: 2001:db8:1::100: Address family for hostname not supported
> 
> Use ping6 on systems where ping doesn't handle IPv6.
> 
> v1 -> v2:
>  - explicitly checking the available ping feature, as e.g. do the
>    bareudp.sh self-tests.(Paolo)
> 
> Fixes: a062260a9d5f ("selftests: net: add UDP GRO forwarding self-tests")
> Signed-off-by: Jianguo Wu <redacted>

I'm afraid v1 got silently applied, see 8b3170e07539 ("selftests: net:
using ping6 for IPv6 in udpgro_fwd.sh") upstream. Could you send an
incremental patch?
```