instance not accessible from other machines

asked 2020-06-07 04:00:22 -0500

uday kiran reddy gravatar image

I have created an instance and assigned floating ip to it. With floating ip, i am able to connect from packstack machine. But not from other machines in the same physical network.

Packstack main server ip: 10.0.1.5

instance floating ip: 10.0.1.117

from another machine in same physical network.:

PS C:\Users\azureuser> ping 10.0.1.117

Pinging 10.0.1.117 with 32 bytes of data: Reply from 10.0.1.6: Destination host unreachable. Reply from 10.0.1.6: Destination host unreachable. Reply from 10.0.1.6: Destination host unreachable. Reply from 10.0.1.6: Destination host unreachable.

Ping statistics for 10.0.1.117: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

PS C:\Users\azureuser> ping 10.0.1.5

Pinging 10.0.1.5 with 32 bytes of data: Reply from 10.0.1.5: bytes=32 time=1ms TTL=64 Reply from 10.0.1.5: bytes=32 time=1ms TTL=64 Reply from 10.0.1.5: bytes=32 time=1ms TTL=64 Reply from 10.0.1.5: bytes=32 time=1ms TTL=64

Ping statistics for 10.0.1.5: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 1ms, Maximum = 1ms, Average = 1ms

Any suggestions please.

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Comments

What's 10.0.1.6?

Also, how is your external network configured? I would like to see the output of ip a on the Packstack host.

Bernd Bausch gravatar imageBernd Bausch ( 2020-06-07 05:45:41 -0500 )edit

please see this target link for details. https://raw.githubusercontent.com/ukreddy-erwin/openstacklogs/master/07-06-2020/details.md (https://raw.githubusercontent.com/ukr...)

uday kiran reddy gravatar imageuday kiran reddy ( 2020-06-07 08:26:39 -0500 )edit

I misunderstood the meaning of 10.0.1.6. Thanks for clarifying.

I know that Neutron only delivers traffic to the configured IP address. I.e. it would not deliver traffic with destination 10.0.1.117 to a port with address 10.0.1.5. Does Azure operate like that as well?

Bernd Bausch gravatar imageBernd Bausch ( 2020-06-07 10:06:43 -0500 )edit

Neutron has a feature named allowed address pairs to make exceptions from this rule. Perhaps Azure has something similar.

Bernd Bausch gravatar imageBernd Bausch ( 2020-06-07 10:10:13 -0500 )edit

Bit confused, but in the current issue which I am facing. I have created openstack all-in-one using packstack on machine with IP 10.0.1.5. Created a new instance and assigned floating IP of 10.0.1.117, so that I thought I can directly connect to this instance suing SSH from any other machine

uday kiran reddy gravatar imageuday kiran reddy ( 2020-06-07 10:13:58 -0500 )edit