Is there any Cisco device discovery app? Let me explain: in ubiquiti there is a windows installer that lists all ubiquiti devices available on the network. Is there something similar in cisco?

Does anyone know why it doesn't ping 8.8.8.8 in Cisco Modeling labs (ACL). configure interface g0/0 as DHCP and take an ip 192.168.255.67 but it does not go to the internet 

Good afternoon everyone, yesterday I tried to do a lab to test NAT but it doesn't work for me, any recommendation?The pc takes ip from vlan 20///ROUTER//Router>enableRouter#confiRouter#configure tEnter configuration commands, one per line. End with C...