BOGON FILTER Meaning and
Definition
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A bogon filter, often referred to as a bogon blacklist, is a filtering mechanism employed in computer networks to block or restrict traffic coming from known or suspected sources of unauthorized or malicious activities. Specifically, bogons are IP addresses or ranges of IP addresses that have not yet been assigned or allocated by the Internet Assigned Numbers Authority (IANA). Consequently, these IP addresses are considered invalid or illegitimate since they do not belong to any legitimate network.
A bogon filter operates by scrutinizing incoming and outgoing network traffic, examining the source IP addresses of packets, and comparing them against a predefined list of known bogon addresses. This list is typically updated regularly to ensure the filters remain effective against newly discovered bogons. When a match is found between a source IP address and a bogon address in the filter, the corresponding data packet is either blocked or flagged for further inspection, depending on the specific configuration employed.
By implementing a bogon filter, network administrators increase the security and integrity of their network infrastructure. It plays a significant role in thwarting malicious actors attempting to exploit undefined IP address ranges or launch attacks from unassigned or unverified sources. Bogon filters are frequently deployed in firewalls, routers, and other security devices to minimize the risk of unauthorized or suspicious network traffic entering or exiting the network.
Overall, the utilization of a bogon filter helps network administrators maintain a secure network environment and protects against potential cyber threats that may arise from unvalidated or unallocated IP addresses.
Common Misspellings for BOGON FILTER
- vogon filter
- nogon filter
- hogon filter
- gogon filter
- bigon filter
- bkgon filter
- blgon filter
- bpgon filter
- b0gon filter
- b9gon filter
- bofon filter
- bovon filter
- bobon filter
- bohon filter
- boyon filter
- boton filter
- bogin filter
- bogkn filter
- bogln filter
- bogpn filter
Etymology of BOGON FILTER
The term "bogon filter" is derived from the word "bogus" combined with "filter". The word "bogus" originally comes from the late 18th-century term "bogus man", which referred to a counterfeiter or a swindler. It later evolved to solely mean "counterfeit" or "fake".
In the context of computer networking, a "bogon" is a term used to describe an IP address block that has not been allocated or assigned to any specific entity. These IP addresses often belong to private or reserved address spaces or are part of unallocated blocks. Therefore, they should not appear on the internet.
A "bogon filter" is a mechanism employed in computer networks to reject or discard packets with bogon IP addresses. The purpose of this filter is to prevent spoofed or illegitimate traffic from entering a network and potentially causing harm or unintended consequences.
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