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Puneet KhoslaPuneet Khosla 

How to send Salesforce IP address from salesforce iframe / webtab

The problem is in a webtab (or apex:iframe) I am opening a site that sits behind a firewall.
I am able to configure the router to add the Salesforce IP address range, however Salesforce iframe sends the request to the external site (behind the firewall) using user's IP address and not salesforce IP address range.

Is there a way to send the IP address of Salesforce or any other option that we can use open the external site from within salesforce
Andy BoettcherAndy Boettcher
The browser's IP representation is based on the client-side (i.e. your user's computer) - not Salesforce itself.  You are not able to spoof that address to send Salesforce's IP addresses.