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PING is timing out but NAT translations are happening

Hello All,

I have created a lab in GNS3 with a Router connected to a cloud representing a bridge to my LAN. On the internal side of the virtual Router I have placed a switch and a VPCS. I have configured the VPCS with a valid internal IP matching the network of my Router's internal interface and the gateway (Router's internal interface).
From the VPCS I can ping the Router successfully.
I have also configured my virtual Router with NAT overload to translate traffic from VPCS to the outside.
I tried to verify NAT confguration by pinging the IP of 8.8.8.8 from the VPCS. The Ping times out but nevetheless I can see the translations on the router side by issuing "sh ip nat translations".

Why is it translating even though the pings are timing out? Is my virtual lab corrupted?

PS: Pings to 8.8.8.8 from my virtual Router are successful

ASKER CERTIFIED SOLUTION

Predrag Jovic

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Ian Arakel

Hi There,

Most of the points were covered by Mr.Predrag.

i)
Kindly initiate a source based ping to the internet IP from router LAN interface.

ii)
Check from the PC if the trace gets through.

iii)
Share the config and the #sh ip nat translations output.

Salah Eddine ELMRABET

Hi,

Check if there is any ACL rule blocking ICMP echo and reply

Regards.

Salah

LuiLui77

ASKER

I believe it was a bug, I recreated the lab and it is working now.

Thank you!