EntityQ880302· pop 12· linked from 27 articlesblack holeSign in to saveplace in a network where incoming traffic is silently discarded without informing the sourceConnectionsfirewallEntityBlack holeConceptInternational Standard Book NumberEntityUniversity of CambridgeEntitycomputer networkEntityAmazonEntityIP addressEntitydigital object identifierEntityInternational Standard Serial NumberEntityDomain Name ServerEntityrouterEntityInternet protocol suiteEntityInternet ProtocolEntityelectronic spamEntityinternet service providerEntityCiscoCompanyIPv6Entitydenial-of-service attackEntityUser Datagram ProtocolEntitynetwork cardEntityCategoriesBlacklistingComputer network securityPackets (information technology)Routing