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DamonL_356592's avatar
DamonL_356592
Icon for Nimbostratus rankNimbostratus
Mar 28, 2018

Dummy TCP Server Inside F5 Using iRule?

We have an application need to take TCP client data and "mirror" it to UDP and send that data to a different destination and port. I have gotten this to work with a sideband UDP send inside an iRule...
application delivery
iRules
LTM
Niels_van_Sluis's avatar
Niels_van_Sluis
Icon for MVP rankMVP
Mar 28, 2018

You could try something like this:

when CLIENT_ACCEPTED {
    TCP::collect
}
when CLIENT_DATA {
    TCP::respond "OK\r\n"
    TCP::collect
}

Output:

$ telnet 10.23.98.37 80
Trying 10.23.98.37...
Connected to 10.23.98.37.
Escape character is '^]'.
data1
OK
data2
OK
data3
OK
^]
telnet> quit
Connection closed.
$