redirect based on internal or external IP using Apache

Question

I am new to apache, so forgive me if this is a beginner questions.

I am trying to redirect request to apache based on the IP address. Depending on where the request originates from, the request will either have a external or internal IP address. External will be redirected to the external site, internal will be redirected to the internal site.

Request to www.site.com will be evaluated based on the IP address. Then redirected to either www.site.com/external or www.site.com/internal . I am able to accomplish this with the following.

 RewriteCond %{REMOTE_ADDR} ^1.1.1.1 
 RewriteRule ^(.*)$ www.site.com/internal [R=301,L] 
 RewriteCond %{REMOTE_ADDR} ^2.2.2.2 
 RewriteRule ^(.*)$ www.site.com/external [R=301,L] 

The problem I am running into is that this is in a loop. Every request will be evaluated and redirected. If possible, I need a way to redirect once, then let other request (www.site.com/external/a/b/c or www.site.com/internal/x/y/z )not be evaluated and then redirected

Answer 1

The way I would handle this is adding a second rewritecond to each stanza, looking at REQUEST_URI to make sure that the target path is not there, eg

RewriteCond %{REMOTE_ADDR} ^1.1.1.1  
RewriteCond %{REQUEST_URI} !^/internal  
RewriteRule ^(.*)$ www.site.com/internal [R=301,L]