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nPath/DSR configuration

rafaelbn
Cirrostratus
Cirrostratus

Hello devs!

 

I'm exploring the nPath/DSR topology on a lab of mine. Here is the topology:

 

 

0691T000005ogLVQAY.jpg

 

I can see traffic hitting the RED server but it never responds to the client:

 

 

0691T000005ogLkQAI.jpg

 

The httpd processes is running correctly. If I curl to the VIP IP on the server (it's loopback), I get a response just fine:

 

 

0691T000005ogLpQAI.jpg

 

And netstat on the server confirms it's listening on all IPs:

 

 

0691T000005ogLzQAI.jpg

 

 

Here is the VS configuration:

 

0691T000005ogM4QAI.jpg

 

 

Am I missing something?

 

Cheers, Rafael

2 REPLIES 2

pauldh
Nimbostratus
Nimbostratus

Did you ever find an answer to this issue? We're seeing something similar.

We bind the VIP on the linux hosts loopback interface. The request arrives to the real server, however the return packet from the real server specifies the real servers IP versus the VIP/Loopback ip.

Hello Paul!

 

Unfortunately I didn't. The only way this worked was the VIP and realserver IP being on the same network.

 

And I don't know if I was missing something aswell.

 

Best of luck. Rafael