On Sept 29, Oct 1, and Nov 15, PayPal will be making changes to the IPN. I have copy and pasted the PayPal announcement below. My question is, do we need to make any changes to our WP eStore settings?
----
PayPal understands the importance of keeping our service highly available to our customers. Consequently, to improve our performance, scalability and availability we will soon be significantly expanding the number of IP addresses for our services.
During the first phase of this rollout which starts on September 29, we will begin gradually moving PayPal website (https://www.paypal.com) onto a dynamic range of IP addresses rather than the current 8 IP addresses published in the DNS (Domain Name System).
This change should be transparent to most merchants and may not require any action on your part.
ACTION REQUIRED: if you are using IPN (Instant Payment Notification) for Order Management and your IPN listener script is behind a firewall that uses ACL (Access Control List) rules which restrict outbound traffic to a limited number of IP addresses, then you may need to do one of the following:
• To continue posting back to https://www.paypal.com to perform IPN validation you will need to update your firewall ACL to allow outbound access to *any* IP address for the servers that host your IPN script
OR
• Alternatively, you will need to modify your IPN script to post back IPNs to the newly created URL https://ipnpb.paypal.com using HTTPS (port 443) and update firewall ACL rules to allow outbound access to the ipnpb.paypal.com IP ranges (see end of message).
During the next phase of this rollout we plan to expand the range of IP addresses for the API services on the following endpoints:
api-3t.paypal.com
api-aa-3t.paypal.com
api.paypal.com
api-aa.paypal.com
svcs.paypal.com
We will be using the same IP addresses as listed below which are also documented in the MTS FAQ https://ppmts.custhelp.com/app/answers/detail/a_id/92 .
ACTION REQUIRED: if you are using ACL (access control list) on your firewall to restrict outbound access to the IP addresses currently in the DNS when connecting to PayPal API endpoints, then you will need to update your firewall rules to allow outbound access to the additional IP addresses.
There’s no action required if you are using DNS (domain name system) to make API requests to PayPal and your firewall does not restrict outgoing traffic to a limited set of IP addresses.
While these changes must be made by early March, 2012, we strongly encourage merchants to make any necessary updates by November 15th 2011 as this will help minimize any potential disruptions during the holiday season.
For more information on IPN, please refer to https://www.paypal.com/ipn .
For more information on PayPal APIs, please refer to https://cms.paypal.com/us/cgi-bin/?cmd=_render-content&content_ID=developer/howto_api_reference .
If you are not sure whether this applies to you or not, then please contact your IT personnel. If you are using a third party vendor for the integration, like a shopping cart vendor etc, then please contact the vendor.
New IP address ranges for ipnpb.paypal.com and the PayPal API endpoints:
• 64.4.240.0/20
• 66.211.160.0/19
• 173.0.80.0/20
• 118.214.15.186
• 118.215.103.186
• 118.215.119.186
• 118.215.127.186
• 118.215.15.186
• 118.215.151.186
• 118.215.159.186
• 118.215.167.186
• 118.215.199.186
• 118.215.207.186
• 118.215.215.186
• 118.215.231.186
• 118.215.255.186
• 118.215.39.186
• 118.215.63.186
• 118.215.7.186
• 118.215.79.186
• 118.215.87.186
• 118.215.95.186
• 202.43.63.186
• 69.192.31.186
• 72.247.111.186
• 88.221.43.186
• 92.122.143.186
• 92.123.151.186
• 92.123.159.186
• 92.123.163.186
• 92.123.167.186
• 92.123.179.186
• 92.123.183.186
• 92.123.199.186
• 92.123.203.186
• 92.123.207.186
• 92.123.211.186
• 92.123.215.186
• 92.123.219.186
• 92.123.247.186
• 92.123.255.186
• 95.100.31.186
• 96.16.199.186
• 96.16.23.186
• 96.16.247.186
• 96.16.255.186
• 96.16.39.186
• 96.16.55.186
• 96.17.47.186
• 96.6.239.186
• 96.6.79.186
• 96.7.175.186
• 96.7.191.186
• 96.7.199.186
• 96.7.231.186
• 96.7.247.186
