X-Forward-For irule

[root@ve1023:Active] config  b virtual bar list
virtual bar {
   snat automap
   pool foo
   destination 172.28.19.79:80
   ip protocol 6
   rules myrule
   profiles {
      http {}
      tcp {}
   }
}
[root@ve1023:Active] config  b pool foo list
pool foo {
   members 200.200.200.101:80 {}
}
[root@ve1023:Active] config  b rule myrule list
rule myrule {
   when HTTP_REQUEST {
   log local0. "\[getfield \[IP::client_addr\] % 1\]: [getfield [IP::client_addr] % 1]"
   if {[HTTP::header exists X-Forwarded-For]}{
      log local0. "\[HTTP::header X-Forwarded-For\]: [HTTP::header X-Forwarded-For]"
      HTTP::header replace X-Forwarded-For "[HTTP::header X-Forwarded-For], [getfield [IP::client_addr] % 1]"
   } else {
      HTTP::header insert X-Forwarded-For [getfield [IP::client_addr] % 1]
   }
}
}

X-Forwarded-For header exists in request.

[root@ve1023:Active] config  ssldump -Aed -nni 0.0 port 80
New TCP connection 1: 172.28.19.253(43292) <-> 172.28.19.79(80)
1328770680.1202 (0.0030)  C>S
---------------------------------------------------------------
HEAD / HTTP/1.1
User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8r zlib/1.2.3 libidn/0.6.5
Host: 172.28.19.79
Accept: */*
X-Forwarded-For: 1.1.1.1

---------------------------------------------------------------

New TCP connection 2: 200.200.200.10(43292) <-> 200.200.200.101(80)
1328770680.1222 (0.0011)  C>S
---------------------------------------------------------------
HEAD / HTTP/1.1
User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8r zlib/1.2.3 libidn/0.6.5
Host: 172.28.19.79
Accept: */*
X-Forwarded-For: 1.1.1.1, 172.28.19.253

---------------------------------------------------------------

[root@ve1023:Active] config  cat /var/log/ltm
Feb  8 22:57:41 local/tmm notice tmm[4369]: 013e0001:5: Tcpdump starting bcast on :::0 from 127.1.1.1:44072
Feb  8 22:58:00 local/tmm info tmm[4369]: Rule myrule : [getfield [IP::client_addr] % 1]: 172.28.19.253
Feb  8 22:58:00 local/tmm info tmm[4369]: Rule myrule : [HTTP::header X-Forwarded-For]: 1.1.1.1
Feb  8 22:58:03 local/tmm notice tmm[4369]: 013e0002:5: Tcpdump stopping on 127.1.1.2:3936 from 127.1.1.1:44072

X-Forwarded-For does not exist.

[root@ve1023:Active] config  ssldump -Aed -nni 0.0 port 80
New TCP connection 1: 172.28.19.253(43294) <-> 172.28.19.79(80)
1328770729.9791 (0.0019)  C>S
---------------------------------------------------------------
HEAD / HTTP/1.1
User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8r zlib/1.2.3 libidn/0.6.5
Host: 172.28.19.79
Accept: */*

---------------------------------------------------------------

New TCP connection 2: 200.200.200.10(43294) <-> 200.200.200.101(80)
1328770729.9802 (0.0010)  C>S
---------------------------------------------------------------
HEAD / HTTP/1.1
User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8r zlib/1.2.3 libidn/0.6.5
Host: 172.28.19.79
Accept: */*
X-Forwarded-For: 172.28.19.253

---------------------------------------------------------------

[root@ve1023:Active] config  cat /var/log/ltm
Feb  8 22:58:44 local/tmm notice tmm[4369]: 013e0001:5: Tcpdump starting bcast on :::0 from 127.1.1.1:34286
Feb  8 22:58:49 local/tmm info tmm[4369]: Rule myrule : [getfield [IP::client_addr] % 1]: 172.28.19.253
Feb  8 22:58:52 local/tmm notice tmm[4369]: 013e0002:5: Tcpdump stopping on 127.1.1.2:3937 from 127.1.1.1:34286