Re: [Dnsmasq-discuss] doc issue: dhcp on multiple interfaces

2018-04-27 Thread Harald Dunkel

On 4/26/18 2:50 PM, Geert Stappers wrote:

On Thu, Apr 26, 2018 at 12:24:56PM +0200, Harald Dunkel wrote:


maybe I am too blind to see, but apparently something like

dhcp-range=em1,10.0.0.10,10.0.0.254,12h
dhcp-range=em2,10.0.1.10,10.0.1.254,12h

is not mentioned in the man page. Is it possible that the
interface part was lost?



range 10.0.0.10...10.0.0.254 is for interface in that range
range 10.0.1.10...10.0.1.254 is for interface in that range



The interface "em1" has the IP address 10.0.0.2, i.e. it is not
in this range. Same goes for em2.

I would guess that dnsmasq looks at the netmask in this case?


Regards
Harri

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[Dnsmasq-discuss] DHCP option 121, handling of interface address

2018-04-27 Thread Olaf Hering
I had to add DHCP option 121 to server an extra network to the clients in case 
one of the clients has to use USB tethering via the mobile phone.
Therefore I added this line, and all is (almost) fine:

dhcp-option=option:classless-static-route,$other_local_net/24,$interface_IP

But it is not possible to set $interface_IP to 0.0.0.0 to indicate that dnsmasq 
should put in the IPv4 address of the interface from which it serves the DHCP 
requests. This is done for a few other DHCP options like default-router, TFTP 
server and the like.

Is this just an oversight, or would there be any downside in handling the 
"wildcard" in "classless-static-route"?

Olaf


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