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Bring performance and reliability to your network with the Aruba Core, Aggregation, and Access layer switches. Discuss the latest features and functionality of the ArubaOS-Switch and ArubaOS-CX devices, and find ways to improve security across your network to bring together a mobile first solution.
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Aruba 8320 DNS 8.8.8.8

This thread has been viewed 25 times
  • 1.  Aruba 8320 DNS 8.8.8.8

    Posted 25 days ago

    Hi

    I see our 8320s sourcing DNS to 8.8.8.8 but cannot find this in the config of the switch. Assume this is some kind of factory default. How can it be disabled?

    Cheers

    Timo Krjukoff



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    Timo Krjukoff
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  • 2.  RE: Aruba 8320 DNS 8.8.8.8

    Posted 25 days ago
    Hi @tkrjukoff, DNS at 8.8.8.8 (Google DNS) is not factory default at all.

    You could check by watching at the output of show ip dns CLI command on your Aruba 8320.

    Are you sure there is no line like (example) ip dns server-address <IP-of-DNS-Server> vrf mgmt (or vrf default) on your running configuration?​

    Which version of ArubaOS-CX is your Aruba 8320 running on?

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    Davide Poletto
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  • 3.  RE: Aruba 8320 DNS 8.8.8.8

    Posted 24 days ago

    Hi @parnassus 

    show ip dns gives a blank output, no dns configured in any of the VRFs.

    SW version: 10.05.0020. The switches burst 8 U/DNS packets every 5 minutes. 

    /etc/resolv.conf has nothing either.

    A bit puzzled here???

    Cheers

    /timo​



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    Timo Krjukoff
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  • 4.  RE: Aruba 8320 DNS 8.8.8.8

    Posted 24 days ago
    Would you please share the output of
    show aruba-central

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    Vincent Giles
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  • 5.  RE: Aruba 8320 DNS 8.8.8.8

    Posted 24 days ago

    Hi @vincent.giles

    XXXX# show aruba-central
    Central admin state : enabled

    Central location : N/A
    VRF for connection : N/A
    Central connection status : N/A

    Central source : dhcp
    Central source connection status : connection_failure
    Central source last connected on : N/A
    System time synchronized from Activate : False

    Activate Server URL : devices-v2.arubanetworks.com
    CLI location : N/A
    CLI VRF : N/A


    Cheers

    /timo​



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    Timo Krjukoff
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  • 6.  RE: Aruba 8320 DNS 8.8.8.8

    Posted 23 days ago
    Please disable central and check that you no longer have these dns queries triggered by the switch:
    8320(config)# aruba-central
    8320(config-aruba-central)# disable

    Regards,
    Vincent

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    Vincent Giles
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