Ok seems your DNS service is down or unreachable. Did you try to restart it?
You can also try a nslookup directly on the server itself to check if the
service is running—
Sent from Mailbox for iPhone
On Fri, Jan 31, 2014 at 10:43 PM, Jay Killion (jakillio)
<[email protected]> wrote:
> Hey Andre -
> Good thought, and yes, I tried that as well. First tried pinging the server,
> then CISCO-CAPWAP with no suffix, then with suffix. I can ping the server,
> but that's it… The crazy thing is, I've been using this for several months
> in my lab and I've used the DNS server many times for this exact purpose.
> Hence, the reason I'm scratching my head…
> sw2#ping 10.10.210.6
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 10.10.210.6, timeout is 2 seconds:
> !!!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max = 1/3/6 ms
> sw2#ping CISCO-CAPWAP-CONTROLLER
> Translating "CISCO-CAPWAP-CONTROLLER"...domain server (10.10.210.6)
> % Unrecognized host or address, or protocol not running.
> sw2#ping CISCO-CAPWAP-CONTROLLER.proctorlabs.com
> Translating "CISCO-CAPWAP-CONTROLLER.proctorlabs.com"...domain server
> (10.10.210.6)
> % Unrecognized host or address, or protocol not running.
> From: Andre Aubet <[email protected]<mailto:[email protected]>>
> Date: Friday, January 31, 2014 3:40 PM
> To: Jay Killion <[email protected]<mailto:[email protected]>>
> Cc:
> "[email protected]<mailto:[email protected]>"
> <[email protected]<mailto:[email protected]>>
> Subject: Re: [OSL | CCIE_Wireless] DNS Troubleshooting
> Hi Jay,
> Did you try a ping to CISCO-CAPWAP... from the switch connecting the AP, and
> then from a device in the same subnet? Be sure to have configured dns-server
> and domain name on the devices before you can do your test.
> —
> Sent from Mailbox<https://www.dropbox.com/mailbox> for iPhone
> On Fri, Jan 31, 2014 at 10:33 PM, Jay Killion (jakillio)
> <[email protected]<mailto:[email protected]>> wrote:
> Hi all -
> I have very little experience with DNS, so when I have an issue I'm not
> really sure what to troubleshoot (after L1 – 3). For example, I'm currently
> trying to have an AP find a controller via DNS but having issues.
> 1 – I verify L1 – 3. The AP is getting an IP and can ping the DNS server,
> and vice versa.
> 2 – Console to the AP and see it is trying to resolve the correct name to the
> correct IP
> Translating "CISCO-CAPWAP-CONTROLLER.proctorlabs.com"...domain server
> (10.10.210.6)
> 3 – Double check my DNS forward lookup zone. It is "proctorlabs.com", with
> an "A" record of "CISCO-CAPWAP-CONTROLLER" translating to 10.10.112.10.
> 4 – I verify DNS service is running on the server.
> 5 – Restart the DNS service. Still no luck.
> 6 – Delete the zone and recreate.
> 7 – Reboot the Win2K3 server. Still not working.
> 8 – Look for anything wonky in the preconfigured switch, like an ACL on one
> of the SVI's blocking DNS. Nothing…
> At this point I can't think of anything else to even troubleshoot. In the
> actual lab, I would likely just resort to option 43 to get the AP's connect
> and simply know I was throwing away points.
> What else would you look at that I may have missed?
> Thanks
> Jay Killion, CCIE #17873
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