Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

felix001_29321's avatar
felix001_29321
Icon for Nimbostratus rankNimbostratus
Sep 27, 2011

Irule TCP Port Issue

Im trying to create an Irule which will snat the connection behind a single ip when destined for a destination port.     The iRule I have is :     -----------------------------------------...
application delivery
dev
devops
irules
Michael_Yates's avatar
Michael_Yates
Icon for Nimbostratus rankNimbostratus
Sep 28, 2011
Hi Felix,

Try this and let me know how it works out. I have converted it to v10.x.x (match class), modified the second condition, and modified the event from CLIENT_ACCEPTED to HTTP_REQUEST: 

 
when HTTP_REQUEST {
if { [class match [IP::client_addr] equals src_nets ] and [[LB::server port] equals "8181" ] } {
        snat 172.16.1.100
    }
}