[Dnsmasq-discuss] ignore mac address for one of the dhcp

Geert Stappers stappers at stappers.nl
Mon Apr 13 09:17:51 BST 2020


On Sun, Apr 12, 2020 at 03:14:33PM -0400, John Siu wrote:
> I am running dnsmasq on a multiple port box. Following are dhcp config for
> the lan and dmz ports:
> 
> ---
> 
> ## LAN
> dhcp-range=tag:lan,::1,constructor:lan,ra-names,72h # IPv6
> dhcp-range=tag:lan,172.16.168.130,172.16.168.250,72h # IPv4
> dhcp-option=tag:lan,option:router,172.16.168.1 # option 3 default gw
> dhcp-option=tag:lan,option:dns-server,172.16.168.1
> 
> ## DMZ
> dhcp-range=tag:dmz,::1,constructor:dmz,ra-names,72h # IPv6
> dhcp-range=tag:dmz,10.10.10.100,10.10.10.120,72h # IPv4
> dhcp-option=tag:dmz,option:router,10.10.10.1 # option 3 default gw
> dhcp-option=tag:dmz,option:dns-server,10.10.10.1
> 
> ---
> 
> They work correctly for network connected to those ports.

I wonder how.

I mean: The provided information looks incomplete to me.
Might be due an attempt to make the config more generic.


> However, I am having issue with the switch which connect to both dmz
> and lan ports with different VLANs. As those VLAN ports share the same
> mac address, sometimes the switch will pick up IP from the lan side,
> and sometimes from the dmz side.
> 
> How can I make dnsmasq only serve IP on the lan side for this specific mac
> address?

Tell more about what you have.


Regards
Geert Stappers
-- 
Silence is hard to parse



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