Nicolas's suggestion is a good one. The dhcp-script gets called when the
DHCP lease database changes. If the DHCP interaction doesn't update the
database, it won't get called. A DHCPINFORM query is the most obvious
way in which that could happen.
Cheers,
Simon.
On 02/08/18 09:30, Nicolas Cavallari wrote:
> On 02/08/2018 08:40, Learn wrote:
>> Hi
>>
>> Not very sure if this is a bug, but I saw dnsmasq.log:
>>
>> Aug 2 14:13:28 dnsmasq-dhcp[5748]: 4278662147 available DHCP range:
>> 172.24.1.10 -- 172.24.1.249
>> Aug 2 14:13:28 dnsmasq-dhcp[5748]: 4278662147 vendor class: MSFT 5.0
>> Aug 2 14:13:28 dnsmasq-dhcp[5748]: 4278662147 client provides name: xxx
>>
>> But my dhcp-script file does not capture anything.
>>
>> Here is my simple dhcp-script:
>>
>>> #!/bin/sh
>>> op="${1:-op}"
>>> mac="${2:-mac}"
>>> ip="${3:-ip}"
>>> hostname="${4}"
>>> tstamp="`date '+%Y-%m-%d %H:%M:%S'`"
>>> payload="${tstamp} ${op} ${ip} (${mac} - ${hostname})"
>>> ddd="`date +%Y_ww%W`"
>>> echo $payload >> /var/log/dhcp-$ddd.log
>>
>> I am sure that I could capture actions from an iPhone iOS. And my
>> Windows 10 client does lease a dhcp address.
>
> maybe it is a DHCPINFORM ? Windows sure does funky stuff with DHCP.
>
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