How to set default gate?

Question

linux

Hello!
It is necessary to configure the default gate address 172.27.40.9 for the pool of subscriber IP addresses 10.185.255.0-10.185.255.255 on ubuntu. I know that the settings are changed in /etc/network/interfaces. However, information could only be found on how to do this for one address.
Problem solved, thank you all for your replies

Answer 1

As mentioned above, the gateway address must be on the same subnet as the subscriber clients.
Having a local address with addresses 192.168.1.1 - 192.168.1.40 for example. The gateway address must be exactly in the range 192.168.1.x.
Otherwise it doesn't work.

Answer 2

Only I'm wondering how you are going to gate in another subnet?

Answer 3

The default gateway must be on the same network as the client. In your case, it must be on the network 10.185.255.0/24

Answer 4

I apologize in advance for my ignorance. Perhaps I misunderstood the idea.
Addresses 10.185.255.0-10.185.255.255 must be accessed via gate 172.27.40.9 is this possible?