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Wrong series ip address

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  • 1.  Wrong series ip address

    Posted Sep 07, 2021 01:51 AM
    Hello team,
    We have configured a switch with 10.serias ip address but some clients are getting 192.168.00 series ip address I checked the configuration there is no configuration related to 192.168.0.0 series .what should I check

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    Shivam Ojha
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  • 2.  RE: Wrong series ip address

    Posted Sep 07, 2021 05:01 AM
    Is there a DHCP Server already in that VLAN, any IP Helpers etc? What does your interface configuration look like?

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    Craig Syme
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  • 3.  RE: Wrong series ip address

    Posted Sep 07, 2021 05:09 AM
    Switch port is in vlan 80 it should obtain ip 10.2.80.x
    But it's obtaining 192.168.0.x it was working fine before but all of sudden we are facing this issue


    Thanks & Regards,

    Shivam ojha

    M:7743901736

    image

    Orbit Techsol India Pvt Ltd.|www.orbitindia.net|







  • 4.  RE: Wrong series ip address

    Posted Sep 07, 2021 06:01 AM
    Could be numerous reasons and without further information on the existing network, any changes or the Switch configuration it would be difficult to know. Possibly some configuration changes have been made on the default VRF?

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    Craig Syme
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  • 5.  RE: Wrong series ip address

    Posted Sep 07, 2021 06:09 AM
    Hello Shivam, you wrote: "We have configured a switch" but you didn't specify which one so what switch model are you referring to exactly? you should provide a lot more details to help us helping you (as Craig already wrote).

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    Davide Poletto
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  • 6.  RE: Wrong series ip address

    Posted Sep 07, 2021 10:37 AM
    We are using Aruba 2930F

    Thanks & Regards,

    Shivam ojha

    M:7743901736

    image

    Orbit Techsol India Pvt Ltd.|www.orbitindia.net|







  • 7.  RE: Wrong series ip address

    Posted Sep 07, 2021 10:49 AM
    Port is configured as untagged vlan 80 and vlan 80 is tagged on Uplink port. It was working properly since 3 months . problem started from yesterday.

    Thanks & Regards,

    Shivam ojha

    M:7743901736

    image

    Orbit Techsol India Pvt Ltd.|www.orbitindia.net|







  • 8.  RE: Wrong series ip address

    Posted Sep 08, 2021 03:43 AM
    What you could do is connect a laptop running wireshark to the port, then see the DHCP requests and responses and what device/MAC address is responding.

    Most likely, there is another device on your network acting as DHCP server, if you don't recognize the IP range from another VLAN in use.

    Also, are you sure the IP is received through DHCP? If a user changed the network config on the computer to a static IP, that IP is used of course.

    ------------------------------
    Herman Robers
    ------------------------
    If you have urgent issues, always contact your Aruba partner, distributor, or Aruba TAC Support. Check https://www.arubanetworks.com/support-services/contact-support/ for how to contact Aruba TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.

    In case your problem is solved, please invest the time to post a follow-up with the information on how you solved it. Others can benefit from that.
    ------------------------------



  • 9.  RE: Wrong series ip address

    Posted Sep 13, 2021 07:05 AM

    Hello herman,

    I have installed wireshark but its not capturing anything.

    I run traceroute on switch .please check if you can find anything.

     






  • 10.  RE: Wrong series ip address

    Posted Sep 13, 2021 11:26 AM
    Don't see any capture or traceroute. If you don't see traffic on Wireshark, there may not be traffic. Link goes up? The client should try to get an IP (DHCP).

    Do you have configuration and DHCP services in VLAN 80?

    It's hard to assist without having access to what you see, a network diagram, or even configuration. Can you reach out to your Aruba partner or Aruba support?

    ------------------------------
    Herman Robers
    ------------------------
    If you have urgent issues, always contact your Aruba partner, distributor, or Aruba TAC Support. Check https://www.arubanetworks.com/support-services/contact-support/ for how to contact Aruba TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.

    In case your problem is solved, please invest the time to post a follow-up with the information on how you solved it. Others can benefit from that.
    ------------------------------