Port 80 works. Using a diff. port w/ <virt host> to server diff. page does'nt

[milesdriven]

I have /etc/httpd/conf/httpd.conf set up fine to serve the index.html page on port 80.

I'm trying to use the virtualhost directive to get apache to send a different page on a different port.

I have this in httpd.conf:

<VirtualHost 192.168.0.2:81>
     DocumentRoot /var/www/html
     DirectoryIndex htmlside.html
</VirtualHost>

There is a htmlside.html file in the html directory. I typed this into the browser, and got nothing:

192.168.0.2:81

Typing the domain name that the "ServerName" directive is set to in the main part of httpd.conf pulls up the "already working" page just fine. Typing 192.168.0.2 without a port # brings the "already working" page up fine too.

When I type 192.168.0.2:81 to bring up the "different" page, I get nothing. I tried using port 10000 too - nothing.

Does anyone know what the problem is?

Thanks