Dear Colleagues, The RIPE NCC is pleased to release an application for the purpose of determining the maximum size of DNS responses that a resolver can receive. This application is meant to assist users and network administrators to prepare their networks and resolvers for a signed root zone. To download this application, and learn how to use it, please see the RIPE Labs website: http://labs.ripe.net/content/testing-your-resolver-dns-reply-size-issues If you have any questions or comments, please feel free to post them on the RIPE Labs website. Regards, Anand Buddhdev, DNS Services Manager, RIPE NCC