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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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6300m IP issue (10.05.0011)

  • 1.  6300m IP issue (10.05.0011)

    Posted 15 days ago
    Hi,

    One of our 6300m switches wasn't able to resolve DNS and therefore unable to connect to Central. I checked the central logs on the switch (show debug buffer module central reverse lines 10) and could see that the switch was unable to resolve the Central DNS name. What was strange was that the source IP of the DNS request was not the switch IP address!

    I checked and double checked but couldn't see this source IP in the config anywhere.

    Ran start-shell > ifconfig and can clearly see this IP assigned.



    I suspect a reboot might help. I'm thinking perhaps the dhcp was enabled on the interface initially then disabled but the OS hasn't got the message.

    Ideas how to fix without rebooting would be great!





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    Cheers
    James
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  • 2.  RE: 6300m IP issue (10.05.0011)

    Posted 15 days ago

    You have several options:
    -Connect the management interface (ip dhcp is turned on) and get ip and dns from connected router
    -Add dns and a default route:

    ip route 0.0.0.0/0 %gateway_ip%
    ip dns server-address %dns ip%





  • 3.  RE: 6300m IP issue (10.05.0011)

    Posted 15 days ago
    TAC had a look and recommended rebooting the switch.

    I ended up setting the VLAN 1 IP via ifconfig in the OS so that it matched the config. Going to upgrade firmware and reboot later today so hopefully that's the ned of that little gremlin.

    ------------------------------
    James Whitehead
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  • 4.  RE: 6300m IP issue (10.05.0011)

    Posted 14 days ago
    Check the DNS config of the switch

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    PowerArubaSW : Powershell Module to use Aruba Switch API for Vlan, VlanPorts, LACP, LLDP...

    PowerArubaCP: Powershell Module to use ClearPass API (create NAD, Guest...)

    PowerArubaCX: Powershell Module to use ArubaCX API (get interface/vlan/ports info)..

    ACEP / ACMX #107 / ACDX #1281
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