I have found a lot of documentation that would alow a router to be a dns server. The command to turn on the server is "ip dns server" This command does not exist in the IOS version I am running. I am running the following c3640-i-mz.124-25b.bin
ip dns server
To enable the Domain Name System (DNS) server on a router, use theip dns servercommand in global configuration mode. To disable the DNS server, use thenoform of the command.
I was going through feature navigator, and found that "dynamic dns support for Cisco IOS" is available only on IP PLUS and ENTERPRISE IOS images.. I see you are running c3640-i-mz.124-25b.bin which is a IP BASE image...
are the IOS code levels you need to look for.. but this would incur a cost to upgrade IPBASE to IP PLUS, and i really dont think it is a useful investment to buy this image, for such a small functionality to work...
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Connectivity Design considerations and recommendation
1.Management Access connectivity
If there is a dedicated OOB management path, consider connecting to CIMC and MGMT port.
If OOB path is not available, Connect the dedicated Management port to LAN Swi...
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This document provides an overview of DPDK and steps to configure and troubleshoot DPDK for OVS in NFVIS.
DPDK stands for Data Plane Development Kit, is a set of libraries that improves data plane performance.DPDK description