How to access a .htaccess protected webpage throught a proxy server

Hi I have this situation

I have to access a webserver that is .htaccess restricted to only one of my IP's

I have another 10 IP addresses that must access that webserver.

How can I access that webpage ?

I installed on the computer that has the allowed IP a proxy server but I don't know how to pass to that webserver the connection parameters. I mean if one computer that is conected throught the proxy, to connect directly to that webpage, without asking username and password. The parameters should be passed by the proxy.

Is that possible ?

add the ip addresses to the .htaccess file??

is not so simple, because I don't own the server that is protected by the .htaccess, so I can change that file. I can access that webserver only from one of my IP addresses and I want to access from the other too.

Well, if the file isnt set up to access an ip, you can always get around it by setting up a tunnel between the 10 ip addresses and your proxy, and making it appear as if they are really coming from that address. Sort of like "spoofing". Or, you can just outright spoof your IP address. Other than that, there isnt really a whole lot you can do. Sorry to be the bearer of bad news.