Switch DNS-server

[MARVIN SPITERI]

Is there any cisco IOS, perhaps IP services that can be configured as a dns server itself? this would be useful in a lab setup using Wireless LAN controllers so that APs can use DNS for WLC discovery without the need for an actual dns server

[Wang, Wei]

Both Cisco router and Cisco switch can be configured as DNS servers.

However, if you use Cisco switch as a DNS server, it doesn't support DDNS updates.

You will get the following messages on Cisco switch when you run "debug ip ddns update":

DDNS: Prerequisite: x.x.x.x.in-addr.arpa. not in use
DDNS: Update: add x.x.x.x.in-addr.arpa. IN PTR client1.domain.local
DDNS: Dynamic DNS Update 1 (PTR) for host client1.domain.local returned 4 (NOTIMP)