Forum Discussion

Kalido's avatar
Kalido
Jan 20, 2020

Collect and pass on variables from client device

Hi,   I have a VIP with a redirect which is pointing to a captive portal, that works fine.   The issue I am having is I need the traffic to collect variables such source Mac address, originat...
application delivery
BIG-IP
LTM
  • Leonardo_Souza's avatar
    Leonardo_Souza
    Jan 24, 2020

    No, I meant to redirect with the information at the end.

    Try this:

    when HTTP_REQUEST priority 400 {
	set mac [LINK::lasthop]
	set ip [IP::client_addr]
	set url [HTTP::uri]
	switch -glob -- [string tolower [HTTP::host]] {
        	"123.45.67.890"     { HTTP::redirect "https://example.com/portal/step1.html?MACAddr=$mac&IPAddr=$ip&OrigURL=$url" }
	}
}

    Forgot to say...

    Don't forget the mac address you will get is the last device mac address.

    If the client is not in the same network as the F5, it is not going to be the client mac address.

Leonardo_Souza's avatar
Leonardo_Souza
Icon for Cirrocumulus rankCirrocumulus

No, I meant to redirect with the information at the end.

Try this:

when HTTP_REQUEST priority 400 {
	set mac [LINK::lasthop]
	set ip [IP::client_addr]
	set url [HTTP::uri]
	switch -glob -- [string tolower [HTTP::host]] {
        	"123.45.67.890"     { HTTP::redirect "https://example.com/portal/step1.html?MACAddr=$mac&IPAddr=$ip&OrigURL=$url" }
	}
}

Forgot to say...

Don't forget the mac address you will get is the last device mac address.

If the client is not in the same network as the F5, it is not going to be the client mac address.

Kalido's avatar
Kalido
Jan 27, 2020

Hi Leonardo,

 

Thank you so much for getting back to me, this has resolved the issue!

 

I couldn't see it before but thanks to you these Irules are starting to make more sense.

 

No all heroes wear capes!

 

Thank you again!