For anybodys information, I found a solution here
http://www.linksysinfo.org/index.php?threads/dhcp-force-no-default-route.68176/
> Actually, I've used something like this for some time to prevent the
> inclusion of a default route over DHCP (this was in concert with
> OpenVPN TAP):
>
> dhcp-mac=openvpn,00:ff:*:*:*:*
> dhcp-option=openvpn,option:router
>
> Works fine.
>
> Rodney
I changed it slightly to be
> dhcp-mac=nodefroute,*:*:*:*:*:*
> dhcp-option=nodefroute,option:router
This did the trick!
Very Happy
thx
Lee
On 06/07/2017 17:18, Lee Moore wrote:
> Hi All,
>
> I would greatly appreciate some help on my issue.
> (and I am a total novice at setting up dnsmasq!)
>
> I have a raspberry PI acting as a standalone WiFi Hotspot serving web pages.
> I use hostapd, dnsmasq, as per instructions here :-
> https://frillip.com/using-your-raspberry-pi-3-as-a-wifi-access-point-with-hostapd/
>
> My dnsmasq.conf is as follows
>> interface=wlan0
>> listen-address=192.168.1.1
>> bind-interfaces
>> server=8.8.8.8
>> domain-needed
>> bogus-priv
>> dhcp-range=192.168.1.20,192.168.1.90,12h
> When I connect from an iOS device, the iOS device is allocated the
> following network parameters
>> IP: 192.168.1.[20 - 90]
>> Broadcast: 255.255.255.0
>> Router: 192.168.1.1
>> DNS: 192.168.1.1
> The Router setting of 192.168.1.1 is a real problem, this stops traffic
> not intended for the HotSpot from using the
> 3G/4G interface.
> So in other words, I only want traffic targetted at 192.168.1.X to go to
> the WiFi hotspot, all other traffic to go through
> the 3G/4G interface.
>
> I can set the iOS network parameters manually, omitting the Router field, eg
>> IP: 192.168.1.10
>> Broadcast: 255.255.255.0
>> Router:
>> DNS: 192.168.1.1
> The above works perfectly. traffic intended for the hotspot goes to the
> hotspot, all else goes through the cellular
> 3G/4G interface.
>
> I am hoping there is some way to configure this automatically, rather
> than manually.
> On a previous Raspbian release I used udhcpd, and I was able to undefine
> the 'router', and this worked perfectly
>
> Many Thanks in advance
> Lee
>
>
>
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