BIG-IP add custom header

if the backend is Linux, try:

tcpdump -i any -vvvs 0 -A | grep -e uri-original

There would be no case where the F5 would remove an incoming header, unless defined to do so. That would require either an iRule, or an HTTP profile "Request Header Erase" setting.

Nov 14 22:03:04 f5-01 err tmm1[8371]: 01220001:3: TCL error: /Common/xheader-irule-01 - Operation not supported (line 1) invoked from within "HTTP::header insert original-uri [HTTP::uri]"

do you assign multiple irules to the virtual server? does action conflict each other?

Nov 14 22:03:04 f5-01 err tmm1[8371]: 01220001:3: TCL error: /Common/xheader-irule-01 - Operation not supported (line 1) invoked from within "HTTP::header insert original-uri [HTTP::uri]"

do you assign multiple irules to the virtual server? does action conflict each other?

could you please elaborate ?

e.g.

 configuration

root@(ve11a)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm virtual bar
ltm virtual bar {
    destination 172.28.24.10:80
    ip-protocol tcp
    mask 255.255.255.255
    pool foo
    profiles {
        http { }
        tcp { }
    }
    rules {
        rule1
        rule2
    }
    source 0.0.0.0/0
    source-address-translation {
        type automap
    }
    vs-index 3
}
root@(ve11a)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm rule rule1
ltm rule rule1 {
    when HTTP_REQUEST priority 1 {
  HTTP::redirect "http://www.google.com"
}
}
root@(ve11a)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm rule rule2
ltm rule rule2 {
    when HTTP_REQUEST priority 2 {
  HTTP::header insert test 1234
}
}

 /var/log/ltm

[root@ve11a:Active:In Sync] config  tail -f /var/log/ltm
Nov 23 22:21:35 ve11a err tmm1[14890]: 01220001:3: TCL error: /Common/rule2  - Operation not supported (line 1)     invoked from within "HTTP::header insert test 1234"

could you please elaborate ?

e.g.

 configuration

root@(ve11a)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm virtual bar
ltm virtual bar {
    destination 172.28.24.10:80
    ip-protocol tcp
    mask 255.255.255.255
    pool foo
    profiles {
        http { }
        tcp { }
    }
    rules {
        rule1
        rule2
    }
    source 0.0.0.0/0
    source-address-translation {
        type automap
    }
    vs-index 3
}
root@(ve11a)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm rule rule1
ltm rule rule1 {
    when HTTP_REQUEST priority 1 {
  HTTP::redirect "http://www.google.com"
}
}
root@(ve11a)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm rule rule2
ltm rule rule2 {
    when HTTP_REQUEST priority 2 {
  HTTP::header insert test 1234
}
}

 /var/log/ltm

[root@ve11a:Active:In Sync] config  tail -f /var/log/ltm
Nov 23 22:21:35 ve11a err tmm1[14890]: 01220001:3: TCL error: /Common/rule2  - Operation not supported (line 1)     invoked from within "HTTP::header insert test 1234"