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stevealexandre
Contributor
Contributor

Impossible to ping under NAT behind AD DNS Server

Hello everyone,

I ask your help because I'm encountering a trouble under Vmware Workstation 14.1.2 and I can't resolve it ...

I'm on NAT network with these parameter :

Network card : VMnet8

Subnet IP : 10.0.0.0

Gateway IP : 10.0.0.1

Subnet mask : 255.255.255.0

I got two VM running :

Windows Server 2016 With Active Directory and DNS Modules

IP : 10.0.0.2

Gateway : 10.0.0.1

DNS : 127.0.0.1(local dns) & 8.8.8.8(google)

Centos 6.9 Minimal server

IP : 10.0.0.3

Gateway : 10.0.0.2

DNS : 10.0.0.2

When i'm on the windows VM, I can ping www.google.fr successfully without drop but when i'm trying to do the same on the centos VM, i got always drop on the ping.

nslookup work successfully on both server to get the ip of www.google.fr so it's not a problem of DNS. (look at attachment)

Someone have a solution?

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2 Replies
louyo
Virtuoso
Virtuoso

Turn off all firewalls, If that does no good, run wireshark to see if the reply is being blocked somewhere.

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stevealexandre
Contributor
Contributor

I have try wireshark and the packet seems not drop on wireshark but ping still failed ...

2333 24.004757228 10.0.0.3 172.217.19.227 ICMP 98 Echo (ping) request  id=0xb60a, seq=3/768, ttl=64

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