This is a strange request and I'm probably not describing this as clearly as possible since I've found nothing similar via google but here goes...

We're opening a third party web application via popup window from our internal portal. The third party is only allowing access via our internal range of IP addresses. The difficulty is that when we're signed into vpn, our ip address does not fall within the approved ip range.

I'm trying to see if there's a way to initiate a call to the third party url from the server side so that the request comes from our internal ip address yet opens in the client's browser.

Any assistance or direction would be greatly appreciated.