Routing between internal networks

[Guest]

[freisei]

High!

I want to reach some internal Networks from client 192.168.11.101 over my endian-firewall.

endians main-IP: 192.168.11.254
additional network: 192.168.1.0/24

it works if i use

Code:

ifconfig br0:1 192.168.1.254

unfortunally this ip 192.168.1.254 is already in use. If i try

Code:

ifconfig br0:1 192.168.1.253

routing doesnt work anymore.

already tried

Code:

ifconfig br0:1 192.168.1.252 broadcast 192.168.1.255 netmask 255.255.255.0

What to do?

greets Freisei