Problems with dhcp option 121 and /12 subnet

RouterOS General
1

Hi all.
My AP give a dhcp address to clients.
Now I use 172.16.0.0/16 private subnet and my dhcp 121 option is:
0x 10 AC 10 AC 10 01 01
in decimal

0X 16 172 16 172 16 1 1 (where 172.16.1.1) is the gateway for 172.16.0.0/16 subnet).

Now I want to use full 172.16.0.0/12 subnet.

I tried:
0X 12 172 16 172 16 1 1 (where 172.16.1.1) is the gateway for 172.16.0.0/12 subnet).

but this option is not received by the client.

What can I do?

Thanks

2

Is the setting in “/ip dhcp-server network” not issuing the correct gateway?

Enable verbose logging for dhcp. Maybe you will see the problem there.

/system logging
add topics=dhcp,debug action=memory