[Dnsmasq-discuss] Problem getting dnsmasq to send a different default gateway to a host

[Fadi]

Hello,

Please be kind this is my first posting to this list.

I have spent hours trying to get this to work, but I seem to be missing
something.

I'm using the latest shibby build of TomatoUSB, and I want dnsmasq to send
the default gateway and dns server address of 192.168.0.55 to the host whose
MAC address is xx:xx:xx:xx:xx.

So I added this to the DNSmasq custom config:


dhcp-mac=red,xx:xx:xx:xx:xx:xx
dhcp-option=red,3,192.168.0.55
dhcp-option=red,6,192.168.0.55


This almost works. When I look at the DHCP OFFER packet in Wireshark,
dnsmasq is sending TWO default gateway (option 3) addresses, the
192.168.0.55 I specified above PLUS the router's 192.168.0.1 address.

How can I prevent it from sending the router's IP as well? Some hosts on the
network (tagged red) are using the 192.168.0.1 address as their default
gateway and some are using the 192.168.0.55.

I have tried different permutations of using "tag:" and "set:" and "net:"
always with the same result.

What am I doing wrong?

Thanks in advance.