5. Combating prefix hijacking

As seen in the previous paragraphs, it is impossible for a network administrator to maintain a list of associations between AS numbers and the prefixes they are authorized to issue. As a result, the risk of prefix usurpation is very high. Global monitoring tools frequently record occurrences of this type of incident, and are essential for detecting them and triggering appropriate reactions . To combat this vulnerability and improve routing security on the Internet, the RPKI (Resource Public Key Infrastructure, ) architecture...