Configuring DNS - Cisco
www.cisco.com › en › USDNS is a distributed database with which you can map host names to IP addresses through the DNS protocol from a DNS server. When you configure DNS on the switch, you can substitute the host name for the IP address with all IP commands, such as ping , telnet , upload , and download .
Configuring DNS on Cisco Routers - Cisco
www.cisco.com › 24182-reversednsSep 30, 2008 · Ping the DNS server from the router using its IP address, and make sure that the ip name-server command is used to configure the IP address of the DNS server on the router. Define an access control list (ACL) that matches on DNS packets: Use the debug ip packet 101 command. Note: Ensure that you specify the ACL.