You're a bit fuzzy (at least it's not clear to me) on whether it's the proxy which is requiring authentication, the remote server which is using browser-based (i.e. HTTP Basic authentication), or the target site which has a login page which you need to fill in.

In the first case, read perldoc lwpcook for its section on proxies which gives an example of the syntax to use to connect through an authenticating HTTP proxy. In the second case, you want to read "Access to protected documents" in the same place.

As for the final case, you probably want WWW::Mechanize as has been already mentioned.

In reply to Re: Accessing webpages with proxy url requiring user/pass by Fletch
in thread Accessing webpages with proxy url requiring user/pass by cdherold

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