Forum Discussion

Robert_77728's avatar
Robert_77728
Icon for Nimbostratus rankNimbostratus
Jun 17, 2011

web service issue

I have a web service that is being called through the Big-IP LTM on port 81. This just HTTP, no HTTPS. For some reason the web service won't load/respond but if you go to each server it works fine so ...
config
design
hooleylist's avatar
hooleylist
Icon for Cirrostratus rankCirrostratus
Jun 17, 2011
Hi Robert,

 

 

Does the pool have a monitor enabled? If so, it is marked up? If not, does LTM have a self IP on the same subnet as the servers? If there isn't one, you'll need a route.

 

 

Do you see the pool stats incrementing?

 

 

If you run a tcpdump (tcpdump -ni 0.0 -Xs0 host 1.1.1.1) looking for traffic destined for the server(s) IP do you see a reply coming back when a client connects to the VS? If not, is the server default gateway pointing to a TMM self IP? If not, you'll need to use source address translation. You can test with SNAT automap enabled on the virtual server.

 

 

Aaron