A technician suspects a company's border firewall is down, thus blocking Internet access. The technician executes the following commands:

#ping -c 1 firewall.company.com
64 bytes from firewall.company.com (192.168.1.1): icmp_seq=1 ttl=64 time=0.061ms
#ping -c 16 www.comptia.com
16 packets transmitted, 0 received, 100% packet loss, time 14999ms

Which of the following commands should the technician use to BEST determine the source of this outage?