[users@httpd] rewrite problem

[Julie Xu]

Hi 
 
I want do rewrite on file proxy.pac. that means if a client use IE  from 
10.1.1.0/24 to query proxy.pac, will get proxy1.pac, and other get proxy.pac.
 
I have did:
 
<IfModule rewrite_module>
        RewriteEngine On
        RewriteCond %{REMOTE_ADDR} ^10\.1\.1\.
        RewriteRule ^proxy.pac$ proxy1.pac
</IfModule>

and reload httpd, but, the client in subnet 10.1.1.0/24 still get proxy.pac not 
proxy1.pac.
 
Could anyone advice me what I did wrong?
 
Any commets will be appreciated
 
Thanks in advance
 
xll