Re: Cisco Prime Infrastructure DNS problem

mfilser · ‎04-23-2018

Hi all.

I've a little problem with my PI 3.3

Some devices are properly displayed with the dns-name. Some not ...

The DNS-entries are correct. The ip domain-name is also defined.

Here is the Show running from the CLI

hostname PRIME01

!

ip domain-name XXXXXXX.YZ

!

interface GigabitEthernet 0

ip address 10.0.0.12 255.255.255.0

ipv6 address autoconfig

!

ip name-server 10.0.0.30 10.0.0.116 10.16.0.4

!

ip default-gateway 10.0.0.1

!

clock timezone CET

!

ntp server 10.250.0.45

!

username admin password hash. role admin

!

service sshd

!

repository NTM

url ftp://10.0.0.49/

user admin password hash

repository defaultRepo

url disk:/defaultRepo

!

password-policy

lower-case-required

upper-case-required

digit-required

no-username

disable-cisco-passwords

min-password-length 6

!

logging localhost

logging loglevel 6

!

cdp timer 60

cdp holdtime 180

cdp run GigabitEthernet 0

!

icmp echo on

!

The DNS-Servers are accessible (ping, traceroute)

All ideas what the problem could be, are welcome :)

Regards

Markus

m.hegeraat · ‎04-23-2018

Prime infrastructure uses DNS to resolve names to IP addresses, but also does reverse lookup's where it tries to resolve and IP address to a name.

Check for the devices where you see issues, if it works both ways and adjust your DNS if it doesn't.

You can open a root shell and test with dig or nslookup

mfilser · ‎04-24-2018

The DNS-Servers are working as DNS and also as Reverse-DNS.

I've tested this from the PI-Server and from several devices as well. It works.

Some other ideas?

Regards

Markus

mfilser · ‎04-25-2018

Well, guys .... I've solved the problem by deleting the devices and a new add (manually) of them.

I don't know why .... but it works ...

Never the less, the main problem is not solved completely.

Viewing to the performance data dashboard (e.g. Top-N Server), the end-hosts are displayed by IP-Address.

I've enabled:

Administration > Settings > System Settings > Client and User > Client > Lookup client host names from DNS server

Should I do additional things to display the names?

Regards

Markus