[NetScaler Trace Study] - How USIP Looks in a Network Trace
Article ID: CTX233036
Updated On:
Description
This trace study looks at how USIP looks in a trace when it is configured correctly and incorrectly.
This example trace was carried out in a practice lab environment with the following IP addresses:- Client IP 10.90.33.156
- VIP 10.90.46.28
- SNIP 10.90.46.26
- Backend server 10.90.46.13
Instructions
When USIP works, you can see the Client IP in the trace communicating directly with the backend. However the source MAC is the NetScaler:
On the backend server we can see the traffic coming from the client:
If the backend server is not configured with the SNIP as the Default Gateway, USIP will fail. This is how it looks in a trace:
A trace on the backend shows it is resetting the connection as it does not know how to get the packets back to the client:
Issue/Introduction
This trace study looks at how USIP looks in a trace when it is configured correctly and incorrectly.
Additional Information
CTX121974 - FAQ: USIP Address Mode of NetScaler
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