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ICMP protocol allowed but no ping from any sorce

Emiliano Mazziotta 5 Reputation points
2023-08-30T08:25:37.2866667+00:00

Hello, i would you like to ping my Linux (ubuntu 20.04) VM, but i can t recive answer.

I opened ICMP protocol on my network interface , and no firewall on VM.

IP forwarding enable.

route:

Kernel IP routing table

Destination Gateway Genmask Flags Metric Ref Use Iface

default _gateway 0.0.0.0 UG 100 0 0 eth0

10.0.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0

168.63.129.16 _gateway 255.255.255.255 UGH 100 0 0 eth0

169.254.169.254 _gateway 255.255.255.255 UGH 100 0 0 eth0

Any idea?

Thank you

Beste regards

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  1. JimmySalian-2011 42,511 Reputation points
    2023-08-30T09:29:34.1933333+00:00

    Hi Emiliano,

    Please provide details if the source is on the same network ? The IP address and Subnet Gateway does not seems to be correct, can you share your IP address schema you have implemented for this network? Check the details of Networking and Subnetting overview here - https://learn.microsoft.com/en-us/troubleshoot/windows-client/networking/tcpip-addressing-and-subnetting

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  3. Emiliano Mazziotta 5 Reputation points
    2023-08-30T18:32:24.95+00:00

    Solve.

    there is some rule on office network that block echo request.

    If i try to ping vm public ip from my home there is no issue

    Thank You

    Best regards

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