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Forum Discussion

Angel_Lopez_116's avatar
Angel_Lopez_116
Icon for Altostratus rankAltostratus
Apr 16, 2014

Collect data send by BIG-IP to client in iRule

Hi,   I'd need to collect data sent by BIG-IP to client in my iRule. I've reading about the TCP::collect and related event CLIENT_DATA but it seems to me that's only useful to collect data sent by...
application delivery
devops
iRules
LTM
Kevin_Stewart's avatar
Kevin_Stewart
Icon for Employee rankEmployee
Apr 21, 2014

The SERVER_CONNECTED event captures traffic returning from the pool member.

when SERVER_CONNECTED {
    TCP::collect
}
when SERVER_DATA {
    log local0. [TCP::payload]
    TCP::release
    TCP::collect
}

I do not believe there is an egress event on the client side, other than perhaps HTTP_RESPONSE_RELEASE for HTTP traffic. I'd have to agree with Nitass that you're best approach may be a layered virtual server for interactive processing. If you don't it to be interactive, and this isn't SSL traffic, you could also probably use a client side clone pool and pass that through a layered VIP.