# Pihole delivers wired DHCP gateway to Wireless network

**URL:** <https://discourse.pi-hole.net/t/pihole-delivers-wired-dhcp-gateway-to-wireless-network/11986>\
**Category:** Help\
**Tags:** dhcp\
**Created:** [August 17, 2018, 6:55am UTC](https://discourse.pi-hole.net/t/pihole-delivers-wired-dhcp-gateway-to-wireless-network/11986 "2018-08-17T06:55:53Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![cprabel](https://discourse-cdn.pi-hole.net/letter_avatar_proxy/v4/letter/c/f19dbf/32.png) [@cprabel](https://discourse.pi-hole.net/u/cprabel)\
**Post date:** [August 17, 2018, 6:55am UTC](https://discourse.pi-hole.net/t/pihole-delivers-wired-dhcp-gateway-to-wireless-network/11986/1 "2018-08-17T06:55:53Z")

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#### Please follow the below template, it will help us to help you!

## Expected Behaviour:

Hi i'm trying to configure Pihole as DNS and DHCP server for both my Wired and Wireless networks  
RPI3 running PiHole is configured as follow :  
Eth0 : Wired network 192.168.1.0/24 default gw .254 (my isp router)  
Wlan0 : Wireless network 172.17.19.0/24 with RPI3 as default gw (.254)

I configured in PiHole gui the DHCP tab with my wired network  
dhcp scope : 192.168.1.1 to 192.168.1.250  
dhcp router : 192.168.1.254

DNS and dhcp is working properly on this Wired network

In order to also deliver dhcp on the Wireless Network i added dnsmasq-wlan0.conf file in directroy /etc/dnsmaq.d with these options :

interface=wlan0  
bind-interfaces  
domain-needed  
domain=home.wifi  
dhcp-authoritative  
bogus-priv  
dhcp-range=172.17.19.1,172.17.19.250,24h  
dhcp-option=option:router,172.17.19.254

## Actual Behaviour:

When i connect a machine to this Wireless network it receives an IP address in the scope 172.17.19.1-250 (thast's ok) but pihole/dnsmasq ignore the dhcp-option router and does not deliver  
the gateway 172.17.19.254 to the macine (but tells 192.168.1.254 is the gateway ☹ )

Int the pihole.log file i see that dhcp-option3 is ignored

Aug 16 19:07:52 dnsmasq-dhcp[6263]: DHCPDISCOVER(wlan0) 64:80:99:e4:22:44  
Aug 16 19:07:52 dnsmasq-dhcp[6263]: DHCPOFFER(wlan0) 172.17.19.144 64:80:99:e4:22:44  
Aug 16 19:07:52 dnsmasq-dhcp[6263]: Ignoring duplicate dhcp-option 3  
Aug 16 19:07:52 dnsmasq-dhcp[6263]: DHCPREQUEST(wlan0) 172.17.19.144 64:80:99:e4:22:44  
Aug 16 19:07:52 dnsmasq-dhcp[6263]: Ignoring domain dom1.xxx.net for DHCP host name L-5CG61276CC  
Aug 16 19:07:52 dnsmasq-dhcp[6263]: DHCPACK(wlan0) 172.17.19.144 64:80:99:e4:22:44 L-5CG61276CC  
Aug 16 19:07:52 dnsmasq-dhcp[6263]: Ignoring duplicate dhcp-option 3

So i would like to know how to configure PiHole/dnsmasq in order to deliver the right default gateway on bothe my wired and Wireless network

Thanks and regards

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**Author:** ![deHakkelaar](https://discourse-cdn.pi-hole.net/user_avatar/discourse.pi-hole.net/dehakkelaar/32/674_2.png) [@deHakkelaar](https://discourse.pi-hole.net/u/deHakkelaar)\
**Post date:** [August 17, 2018, 5:38pm UTC](https://discourse.pi-hole.net/t/pihole-delivers-wired-dhcp-gateway-to-wireless-network/11986/3 "2018-08-17T17:38:54Z")

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Do the wired and wireless networks really need two different separate subnets ?  
Is it not possible to configure only one DHCP range on the Pi-hole web GUI for both wired and wireless ?  
That way you wont have to fiddle with the dnsmasq config files.  
And you wont need two default routes for the two networks.

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**Author:** ![cprabel](https://discourse-cdn.pi-hole.net/letter_avatar_proxy/v4/letter/c/f19dbf/32.png) [@cprabel](https://discourse.pi-hole.net/u/cprabel)\
**Post date:** [August 18, 2018, 7:35am UTC](https://discourse.pi-hole.net/t/pihole-delivers-wired-dhcp-gateway-to-wireless-network/11986/4 "2018-08-18T07:35:58Z")

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Hello,  
yes i want to manage 2 different subnets (wired an wireless)  
and the solution was to add eth0/wlan in dhcp-option or dhcp-range lines ie  
dhcp-range=wlan0,172.17.19.1,172.17.19.250,24h  
dhcp-option=wlan0,option:router,172.17.19.254

Problem is solved 🙂

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**Author:** ![system](https://discourse.pi-hole.net/uploads/default/original/3X/7/c/7c8792f649eeb921c5d2b4c41564ffa873d9a2b8.png) [@system](https://discourse.pi-hole.net/u/system)\
**Post date:** [September 8, 2018, 7:36am UTC](https://discourse.pi-hole.net/t/pihole-delivers-wired-dhcp-gateway-to-wireless-network/11986/5 "2018-09-08T07:36:01Z")

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