- Ping - tests bidirectional connectivity
- Traceroute - uses the ICMP to each hop and maps the route
- Telenet - used to indicated if a service is running at the recipient: telenet cisco.com 53 (53 is the port number for DNS; 80 is HTTP; 443 is HTTPS…..)
- (PC) nslookup for DNS info - ex \nslookup www.cisco.com
Sunday, December 15, 2019
Cisco Troubleshooting Methodology & Bread
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Common tools on the router Ping - tests bidirectional connectivity Traceroute - uses the ICMP to each hop and maps ...
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The Data Link Layer - I love this tasty layer....so beautifully simple đ Leah and I are chill'in at the Grizz ...nothing better ...
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