Hello all,

I have a machine running dnsmasq to provide DNS and DHCP services to my small network. All machines are running FreeBSD 13-stable as of a week ago. Dnsmasq is installed from the port and is version 2.87.

I use DHCP options to push the default route to the clients. The relevant bit of my dnamasq.conf is:

dhcp-authoritative
dhcp-range=igb0,XXX.2.73.10,XXX.2.73.99,255.255.255.128,12h
dhcp-option=option:router,XXX.2.73.1

That all works correctly.

# route get default
  route to: default
destination: default
      mask: default
   gateway: XXX.2.73.1

Now I would also like to push a static route to clients to give them access to another network which is connected via OpenVPN. I've added the DHCP option 121:

dhcp-option=option:classless-static-route,XXX.3.73.0/24,XXX.2.73.2

That adds the new static route correctly. But it breaks the default route.

# route get XXX.3.73.1
  route to: XXX.3.73.1
destination: XXX.3.73.0
      mask: 255.255.255.0
   gateway: XXX.2.73.2

# route get default
route: route has not been found

I've tried just "option:static-route" instead (option 33). But that doesn't appear to work at all.

Can somebody please give me some clues. I'll happily admit that I don't know what I'm doing!

Thanks in advance.

Graham

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