[Dnsmasq-discuss] DHCP leases on multiple interfaces with different subnet mask
john doe
johndoe65534 at mail.com
Tue May 1 07:57:58 BST 2018
On 5/1/2018 5:44 AM, Tom Hung wrote:
> Greetings,
>
>
>
> I have an issue about set multiple interfaces with different subnet mask.
>
> I set three interfaces, br-lan, br-VLAN4 and br-VLAN5. br-VLAN5 subnet mask
> is 255.0.0.0, others are 255.255.255.0
>
> When there is no DHCP leases, DHCP Client can get correct DHCP OFFER from
> different interfaces.
>
> But if client get DHCP OFFER from br-VLAN5, and then switch back to br-lan.
> It will get incorrect result.
>
> What I expect is it can be obtained in original br-lan dhcp-range. Do I miss
> anything?
>
>
>
> Here is my dnsmasq.conf and log, you can see last DHCP OFFER from br-lan is
> incorrect.
>
> ======================================================
>
> localise-queries
>
> dhcp-range=lan,192.168.10.101,192.168.10.199,255.255.255.0,12h
>
> dhcp-range=VLAN4,192.168.4.101,192.168.4.199,255.255.255.0,12h
>
In most cases tags need to be set before they can be used. Are the tags
set anywhere else in your configuration?
If no, the following example could help:
dhcp-range=set:<TAG-NAME>,...
--
John Doe
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