Cookie

Hello Mika.

You can use an iRule to inject a HTTP header with this info.

when SERVER_CONNECTED {
    set node [IP::remote_addr]
}
 
when HTTP_RESPONSE {
    HTTP::header insert {LB-SERVER} $node
}

# curl -v http://10.130.4.50 -o /dev/null
...[Omitted]
HTTP/1.1 200 OK
< Date: Tue, 18 Aug 2020 08:18:42 GMT
< Server: Apache/2.2.15 (CentOS)
< X-Powered-By: PHP/5.3.3
< Content-Length: 7677
< Connection: close
< Content-Type: text/html; charset=UTF-8
< LB-SERVER: 172.16.1.2

Regards,

Dario.