Forum Discussion
Jon_Strabala_46
Feb 04, 2010Nimbostratus
There are a few uses
1
The 1x1 gif can be used as a web beacon (injected into all response content) this results in Google Analytics style information being sent to the ISP that uses the F5. Imaging that you only want to track a a single user or a subset of subset of users. Having the F5 short circuit the beacon request by injecting a 1x1 gif (without the request hitting the beacon server) effectively turns off tracking tracking. This allows selective tracking to meet the needs of Communications Assistance to Law Enforcement Act (CALEA)
2
Use the 1x1 gif request to perform authentication (sideband style) once the connection/session is authenticated, have the F5 short circuit the beacon request by injecting a 1x1 gif. This limits the load on the sideband auth server
- Jon