TCPDUMP capture for Performance Virtual Server
Hi Team, We are having issue with VIP which is configured with Performance(Layer 4) Virtual Server. Issue: Application hosted on back-end server is not accessible through VIP. but when we directly try to access the backend server from internal network.. they are able to access.. Observation: We suspect that return route from back end server.. we are not sure whether next-hop gateway for route in server is floating IP on f5 or Firewall IP (L3) . That we yet to check WITH server team...(not getting response from back server team).. Meanwhile What I thought is that I can do tcpdump capture on LTM for Performance(Layer 4) Virtual Server (VIP) and try to see something i can find in it. Do I need to capture tcpdump between Client IP and Backend Server.? or between client IP and VIP IP..? I am unable to understand how to capture the tcpdump for connection flow because tcp session flow for Performance(Layer 4) Virtual Server is different that standard virtual server..? please help me