Cisco automatically attempts to resolve IP addresses to name when using the traceroute command when you have DNS servers specified. In this lab you will configure R1 to use the DNS servers of 4.2.2.2 and 4.2.2.4 (Public DNS Servers hosted by Verizon/GTE) and then test the DNS name resolution by pinging Google.com from R1’s command line interface.
Oct 22, 2008 Configuring Cisco IOS DNS Name Servers | Free CCNA Workbook Cisco automatically attempts to resolve IP addresses to name when using the traceroute command when you have DNS servers specified. In this lab you will configure R1 to use the DNS servers of 4.2.2.2 and 4.2.2.4 (Public DNS Servers hosted by Verizon/GTE) and then test the DNS name resolution by pinging Google.com from R1’s command line interface. (10+) Best Free DNS Servers To Faster Your Internet 2020 May 14, 2020 DNS - Cradlepoint
4.2.2.4 used to have a reverse DNS to i-will-not-steal-service.gtei.net – Mikeage Nov 25 '09 at 11:59 I'd heard recently that Level 3 were planning to restrict access to 4.2.2.1 and 4.2.2.2 from the wider internet, but I don't know how accurate that is.
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What is 1.1.1.1? | Cloudflare
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