just need to add the following statements
ssh 192.168.3.0 255.255.255.0 inside
- the interface (inside) here should be the interface that leads to this 3.x network
if you want to manage via telnet and gui
http 192.168.3.0 255.255.255.0 inside
telnet 192.168.3.0 255.255.255.0 inside
lastly, this command is probably already there
- management-access inside
hope this helps.