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  • 1.  DHCP Lab , Switch A and Switch B are not communicatin each other

    Posted Apr 22, 2021 05:49 PM
    i am using ,Virtual Box with GNS3 , i have configure interface 1/1/1 of switch A and B with the dedicated IP address , but its not communicating with each other.

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    Sakiriyas francis
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  • 2.  RE: DHCP Lab , Switch A and Switch B are not communicatin each other

    Posted Apr 22, 2021 06:19 PM
    Hi Francis,
    It should work. Can you tell me what version of VirtualBox and GNS3 you are using, so I can test it on my side?
    Thank you.

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    Ruben Iglesias
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  • 3.  RE: DHCP Lab , Switch A and Switch B are not communicatin each other

    Posted Apr 26, 2021 06:36 AM
    Good day!

    As Ruben mentioned, it should work as expected.

    Please check following or share these information.

    0. show version
    1. show lldp neighbor-info
    2. show ip interface brief
    3. show running-config

    Good day!

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    Yash NN
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  • 4.  RE: DHCP Lab , Switch A and Switch B are not communicatin each other

    Posted Apr 27, 2021 06:57 PM
    I'm also having communication issues in this lab.  I am not able to ping int 1/1/1 at 192.168.4.1 or loopback 0 at 192.168.2.1 from any of my downstream devices.  

    Files uploaded have show run, as well as other show command results.

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    David Van Elswyk
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    Attachment(s)

    txt
    SwitchA.txt   4 KB 1 version
    txt
    SwitchX.txt   1 KB 1 version
    txt
    SwitchB.txt   5 KB 1 version
    txt
    SwitchY.txt   1 KB 1 version


  • 5.  RE: DHCP Lab , Switch A and Switch B are not communicatin each other

    Posted Apr 27, 2021 07:57 PM
    Edited by ktakodra Apr 27, 2021 08:00 PM
    it seems like switch X & Y have their IPs OK from DHCP offers from Switch A

    Thus assume ping from switch A & B is OK  from a ping perspective

    When you ping from X or Y you need to add the key word "vrf mgmt" at the end of the ping syntax as you are initiating the ping from X & Y from a mgmt vrf

    i.e from switch Y

    ping 192.168.4.1 vrf mgmt

    ping 192.168.4.2 vrf mgmt

    ping 192.168.2.1 vrf mgmt

    I hope that helps

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    Kamal Takodra
    If my post was useful accept solution and/or give kudos
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  • 6.  RE: DHCP Lab , Switch A and Switch B are not communicatin each other

    Posted Apr 28, 2021 02:23 PM
    I was testing using the "vrf mgmt" designation from switches X and Y.  I'm testing again today and am getting the same results.

    Pinging to any address off the switch, any switch, does not work.  The only pings that work are when pinging a local address on a switch.  Even from SwitchB trying to ping 192.168.4.2 which is on SwitchA does not work.   The attached files show test results.  Config files are in my previous post.

    LLDP and show commands do indicate that all connections between the switches and the workstation are up.

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    David Van Elswyk
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    Attachment(s)



  • 7.  RE: DHCP Lab , Switch A and Switch B are not communicatin each other

    Posted Apr 28, 2021 07:51 PM
    I tested using your configs (Van) using the 10.07.0004 simulator version, it seems to be working fine upstream.  I can ping from both X and Y (C and D in my case).


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    Justin Noonan
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  • 8.  RE: DHCP Lab , Switch A and Switch B are not communicatin each other

    Posted Apr 29, 2021 01:42 PM
    Thanks Justin.  Time to move on I guess.  It is a sim after all. 

    Will look into updating to the 10.07 version as well.

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    David Van Elswyk
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