I tried to use SetEnv to set the REMOTE_ADDR but failed. Our Apache webServer has a network device in front, which NATed the client sourceIP. In order to retrieve the sourceIP, we used network device inserted the sourceIP, like to use the inserted one to replace the REMOTE_ADDR. I tried to use mod_header and mod_env to set it but failed. If some one knows how, please help. Many Thanks, Q.Xie --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx