netdev - Re: question: Any way to trigger DHCP renewal from kernel code?

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Date:	Fri, 23 May 2014 17:20:47 +0800
From:	zhuyj <zyjzyj2000@...il.com>
To:	Vlad Yasevich <vyasevich@...il.com>,
	Haiyang Zhang <haiyangz@...rosoft.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	zhuyj <zyjzyj2000@...il.com>
Subject: Re: question: Any way to trigger DHCP renewal from kernel code?

On 05/23/2014 08:49 AM, Vlad Yasevich wrote:
> On 05/22/2014 06:24 PM, Haiyang Zhang wrote:
>> Hi,
>>
>> Our synthetic network driver is notified when the Hyper-V host
>> resume from sleep/hibernation. We need to renew DHCP in this case.
>> I'm looking for a way to trigger DHCP renewal from kernel mode
>> code.
>>
>> Can anyone help me?
> One idea:
>
> Generate a udev event and a udev rule that triggers a renew when
> event is received.
>
> -vlad
Another idea:

crontab, Periodically trigger a renew.

Zhu Yanjun
>
>> Thanks,
>> - Haiyang
>>
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