$ dig _netblocks.google.com TXT will give you the ranges. But they are nesserially broad, and pretty much include the whole of Google - not just AppEngine.
(they are of course for SPF but apprently urlfetchs should always come from the range too - also no idea how often it changes) On 2 December 2010 19:43, Brian <[email protected]> wrote: > Hi, > > I hope this is the right place to ask this question. > > I have an application that I'd like to implement using app engine. It needs > to send messages via an SMS gateway. The gateway offers > a http interface and so I was planning to use a cron-driven URL fetch to > send the SMS requests. The problem is that the gateway allows restricting > the http requests to a specific source IP address (or range thereof). The > client will probably want to make this restriction. I'm guessing there's > no way to predict what IP address the request would originate from? > > Brian > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/google-appengine?hl=en. > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
