When using command such as "ntp server", "snmp-server host" or "radius-server host" with the DNS name to specify the host, IOS seems to perform an automatic DNS lookup and places the resolved IP address in the configuration file.
In order to perform a network migration, we want to permform change on the DNS without changing all the equipment configuration file with IP address for NTP, SNMP or Radius server.
Do you know how force IOS to record the hostname witout doing static DNS lookup in the configuration file?
The "no ip domain-lookup" command cannot do this, as I want to use DNS.
To expand on the last answer, see if you can place the names in the startup config by tftp. Then, every time the router boots, the config will resolve the names again. I have never tried this, but its worth a try.
The down side of this is you can't save changes to the config without re-tftping the config to the router with the updated info.
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...