Lesson plan
Arptables
The arptables computer software utility is a network administrator's tool for maintaining the Address Resolution Protocol (ARP) packet filter rules in the Linux kernel firewall modules. The tools may be used to create, update, and view the tables that contain the filtering rules, similarly to the iptables program from which it was developed. A popular application is the creation of filter configurations to prevent ARP spoofing. Linux kernel 2.4 only offers two ARP filtering chains, INPUT and OUTPUT, and Linux kernel 2.6 adds the third, FORWARD, applied when bridging packets.
Article summary
The arptables computer software utility is a network administrator's tool for maintaining the Address Resolution Protocol (ARP) packet filter rules in the Linux kernel firewall modules. The tools may be used to create, update, and view the tables that contain the filtering rules, similarly to the iptables program from which it was developed. A popular application is the creation of filter configurations to prevent ARP spoofing. Linux kernel 2.4 only offers two ARP filtering chains, INPUT and OUTPUT, and Linux kernel 2.6 adds the third, FORWARD, applied when bridging packets.
Key claims
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
Bibliography
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Key claims and bibliography are generated from the same tracked claims and sources as the article page.