The scenario is the next:
A have Central point a firewall it is pemit the trafic from network 10.5.2./24 forwad meraki central point ,
The meraki headquarter has the network 10.5.2.0/24.
I want to isolate a device in other network , for this reason . I braked up the network from /24 to /25 .
I craetd on the meraki two networks
vlan 3 10.5.2.0/25 //
10.5.2.128/25 // GW 10.5.2.254
I pluged device on diferent meraki port with a Ip address 10.5.2.129 /25 MX ip 10.5.2.254.
From the meraki trought the vlan 3 ( network 10.5.2.0/25) I try to hit via ping the 10.5.2.129 /25 but it was impossible .
May be I will need a static router isen`t it ?
Also I have a doubt When the traffic reach the firewall it has the ip 10.5.2.0/24 could be a problem ? on the firwall I would have to partition the network in two /25 . I don´t remember the routing rules when you break up a network on small pice and you have the main network .