Why does RIP change the network address?

Question

Cisco

Good afternoon!
I configure RIP on a tsiska. Registered addresses on ports.

interface GigabitEthernet0/0
ip address 172.16.1.1 255.255.255.0
duplex auto
speed auto
!
interface GigabitEthernet0/1
ip address 10.0.0.2 255.255.255.252
duplex auto
speed auto

I prescribe the RIP settings:

Router(config)#route rip
Router(config-router)#version 2
Router(config-router)#network 172.16.1.0
Router(config-router)#network 10.0.0.0

But in the config, for some reason, the network address changes:

router rip
version 2
network 10.0.0.0
network 172.16.0.0

Why? First time I see this.

Answer 1

Maybe by the fact that you did not specify a network mask and therefore the tsiska considers the classful network address.