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Black hole (networking)

In networking, a black hole or sinkhole is a place in the network where incoming or outgoing traffic is discarded or "dropped" without informing the source that the data did not reach its intended recipient. When examining the topology of the network, the black holes themselves are invisible, and can only be detected by monitoring the lost traffic. The…

Black hole filtering, Addresses & Firewalls and "stealth" ports

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Black hole filtering

Routing tableFirewallRouting protocolDenial-of-service attacksIproute2
13 related topics

Addresses

IP addressTCP/IPICMPUDPRUDP
8 related topics

Firewalls and "stealth" ports

FirewallsPacketsPersonal firewallsRouterNetwork address translation
7 related topics

DNS Blackhole Server

Domain Name SystemReverse DNS lookupsReverse DNS
3 related topics

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Overview

Addresses

Firewalls and "stealth" ports

Black hole filtering

DNS Blackhole Server

DNS-based Blackhole List

Black hole e-mail addresses

Advanced semantic analysis

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Map overview Semantic statistics

Black hole (networking)

Nodes47
Edges46
Triples2
Avg. degree1.96
Density0.042553
Components1

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Important terminology

black hole addresses network firewalls routers packets ip address blackhole null traffic often filtering icmp reserved used routing dns holes

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
0.0.0.0instance ofa null route can be implemented by forwarding packets to an illegal IP address0.80text
or the loopback address.Null routing has an advantage over classic firewalls since it is available on every potential network routerinstance ofa null route can be implemented by forwarding packets to an illegal IP address0.80text

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    Min side: 3
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