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Special Forums IP Networking Protection against arp spoofing Post 302586616 by chrisperry on Monday 2nd of January 2012 07:05:15 PM
Old 01-02-2012
There is only one router in that network, so all arp traffic is passing through it and it can be monitored and filtered.
Yes, the attacker must be on my local network, that's the idea. Arp spoofing is common on public hotspots, university networks etc.

But you are right, dropping all trafic is not a good solution.
Do you propose another protection?
 

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NETWORKS(5)							File Formats Manual						       NETWORKS(5)

NAME
networks - network name data base DESCRIPTION
The networks file contains information regarding the known networks which comprise the DARPA Internet. For each network a single line should be present with the following information: official network name network number aliases Items are separated by any number of blanks and/or tab characters. A ``#'' indicates the beginning of a comment; characters up to the end of the line are not interpreted by routines which search the file. This file is normally created from the official network data base main- tained at the Network Information Control Center (NIC), though local changes may be required to bring it up to date regarding unofficial aliases and/or unknown networks. Network number may be specified in the conventional ``.'' notation using the inet_network() routine from the Internet address manipulation library, inet(3N). Network names may contain any printable character other than a field delimiter, newline, or comment character. FILES
/etc/networks SEE ALSO
getnetent(3N) BUGS
A name server should be used instead of a static file. 4.2 Berkeley Distribution May 6, 1986 NETWORKS(5)
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