Hi Erwin, In addition to Barry's (correct) answer, you should be using SDC in order to get past your corporate firewall, rather than relying on IP ranges.
http://code.google.com/securedataconnector/ -Nick Johnson On Thu, Jun 24, 2010 at 7:10 PM, Barry Hunter <[email protected]>wrote: > Apparently URLFetch will always make requests from these blocks: > > $ dig _netblocks.google.com TXT > > I dont know how often it changes, but just monitor that TXT record. > > But those ranges are necessarily large, so of course will be allowing > access from other Google products. > > > > On 24 June 2010 12:39, Erwin Streur <[email protected]> wrote: > > We have developed a application as a Google App, which does call backs > > into our corporate domain for sending updates to the backend systems > > using HTTP. Of course the corporate network is firework protected and > > we have set rules to allow trafic based on the IP address ranges which > > were used then. > > > > A couple of weeks ago traffic failed, which was caused by the HTTP > > requests coming from a different IP address range. The range was added > > also to the firewall rules. Last week it happened again. > > > > So my questions are: > > - What are now the IP address ranges used GAE for outgoing HTTP > > transfic? > > - Is there a webpage listing them and which is kept up to date? > > > > Regards, > > > > Erwin > > > > -- > > 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]<google-appengine%[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]<google-appengine%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/google-appengine?hl=en. > > -- Nick Johnson, Developer Programs Engineer, App Engine Google Ireland Ltd. :: Registered in Dublin, Ireland, Registration Number: 368047 Google Ireland Ltd. :: Registered in Dublin, Ireland, Registration Number: 368047 -- 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.
