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Ivan_Blesa_2004's avatar
Ivan_Blesa_2004
Icon for Nimbostratus rankNimbostratus
Jun 24, 2015

ICAP inspection with SWG for HTTP and HTTPS

I have deployed SWG with the iApp provided in https://devcentral.f5.com/codeshare/f5-secure-web-gateway-iapp-template I have added ICAP Request and Response inspection for HTTP and HTTPS. If I select...
application delivery
deployment
devops
iApps
LTM
  • mikeshimkus_111's avatar
    mikeshimkus_111
    Jun 24, 2015

    I've found that the HTTP VS generally never receives any traffic when using the explicit proxy, probably because most clients don't use the HTTP CONNECT method for unencrypted requests. Meaning that the HTTP proxy won't be triggered and the traffic will just be forwarded out the default route on your BIG-IP.

    I ran into this issue when trying to enable AAM on the proxy_vs, and worked around it using this iRule:

    when HTTP_PROXY_REQUEST {
     traffic passed through to the HTTPS VS where web acceleration is enabled
    WAM::disable
}
when HTTP_REQUEST {
     web acceleration enabled non-proxy HTTP requests
    WAM::enable
}

    I don't know if there's an equivalent command to enable/disable ICAP.

Michael_Koyfma1's avatar
Michael_Koyfma1
Icon for Cirrus rankCirrus
Jun 30, 2015

Ivan,

 

I am curious, what type of ICAP server are you using here? Typically, you would not want to send all the traffic to the ICAP server but rather use BIG-IP to intelligently steer required data(like POST requests, for example) to the ICAP. I'm curious what the use case is for sending all request data via ICAP and what purpose it will serve. Thanks.