Hi Ruoshui, App Engine will make outgoing HTTP requests from a subset of the addresses returned by the TXT record _netblocks.google.com. Note that these can change at any time, so you can't simply fetch the list as it stands now and assume that will continue to be the case.
IP-based authentication is a poor choice here, as you will open yourself up to access by any App Engine application. Instead, you should implement a proper authentication system and use that instead of relying on IP ranges for your security. -Nick Johnson On Wed, Jul 6, 2011 at 10:49 PM, liu <[email protected]> wrote: > Hi Barry, > > Thank you so much for your response. I have looked through the SDC, > and realised that it only supports linux installation, which is not > possible on our windows machine. > > We are doing a big commercial project in which a large Wireless Sensor > Network is deployed at a UK based global semiconductor company site to > monitor the energy usage, but the problem is we have to give them > valid IP address for Google App Engine apps in order for them to > whitelist them at the firewall. So we can send inbound and outbound > data through firewall between WSN and GAE apps. Otherwise, the > firewall will block any traffic from the apps residing at Google App > Engine. > > I was not able to find such information from GAE doc, so I would like > to have any helps from you guys. Since this is a big commercial > project using GAE service, so it is really urgent and important for us > to nail down this issue asap. > > Many thanks, > > Best regards, > > Ruoshui > > On Jun 30, 7:25 am, Barry Hunter <[email protected]> wrote: > > This sounds like an application for the Secure data connector > > > > http://code.google.com/securedataconnector/ > > > > If you where to whitelist appengines many IPs - you would be opening > > up your firewall to anyone with a app on appengine - or even access to > > a comprismised or low security app. (think shell.appspot.com ) > > > > > > > > On Thu, Jun 30, 2011 at 9:50 AM, liu <[email protected]> wrote: > > > Dear all, > > > > > We are setting up a network locally which is protected by a firewall, > > > and we also have an application running on Google app engine to pull > > > the data out of the network remotely. The problem is how I can > > > whitelist the IP addresses for the traffic flow between the local > > > network and the application running on google app engine please? I > > > can't find any IP address range for the google app engine, so that I > > > can put them in the allowable list at the firewall. > > > > > Any helps and suggestions are highly appreciated. > > > > > Best regards, > > > > > Liu > > > > > -- > > > 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 athttp:// > groups.google.com/group/google-appengine?hl=en.- Hide quoted text - > > > > - Show quoted text - > > -- > 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. > > -- Nick Johnson, Developer Programs Engineer, App Engine -- 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.
