Re: [Xen-devel] [PATCH] xen-netfront, xen-netback: Use correct minimum MTU values

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Mon, Oct 16, 2017 at 03:20:32PM +0200, Mohammed Gamal wrote:
> RFC791 specifies the minimum MTU to be 68, while xen-net{front|back}
> drivers use a minimum value of 0.
> 
> When set MTU to 0~67 with xen_net{front|back} driver, the network
> will become unreachable immediately, the guest can no longer be pinged.
> 
> xen_net{front|back} should not allow the user to set this value which causes
> network problems.
> 
> Reported-by: Chen Shi <cheshi@xxxxxxxxxx>
> Signed-off-by: Mohammed Gamal <mgamal@xxxxxxxxxx>

Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>

CC netfront maintainers

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
https://lists.xen.org/xen-devel