I use two mikrotik devices. First device use as DHCP-server and second as DHCP-client.
Client obtain gateway from server and use as default route. All work fine.
When I configure DHCP options 121 (classless static route) on server (for example 0x140a05000a010101), client receive it, but forget about gateway.
Have I to specify “default route” too? (like 0x140a05000a010101000a0101fe)
No ideas?