No route to host when connect using instance private ip address

Question

OS: Amazon Linux 2023

I'm able to connect to the local server within the instance using 127.0.0.1, but I receive "No route to host" when connecting using instance's private IP address (e.g. 10.0.22.42). I am able to connect to this IP address from a different instance within the same VPC.

What I need to do so I can connect to a local server in the same instance using instance's private IP address?

Thanks,
Kevin

Accepted Answer

The issue is in the iptables configuration:
-P FORWARD DROP

Answer

Are you 100% sure the IP address is correct? Any screenshots would be benifical too.

Answer

Hi Gary,

Thanks for responding. Yes, the IP address is 100% correct. It's like caused by recent version of Docker.

![Enter image description here](/media/postImages/original/IMok9VTdsSRyuoWiyeiiaBbQ)

Running Docker version 24.0.5, build ced0996

No route to host when connect using instance private ip address

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