shell:$ nslookup -timeout=2 -retry=1 'routerprotocol.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	routerprotocol.com
Address: 18.160.172.62
Name:	routerprotocol.com
Address: 18.160.172.50
Name:	routerprotocol.com
Address: 18.160.172.30
Name:	routerprotocol.com
Address: 18.160.172.82