Anti-spam implementations in a router at the network layer

Details Anti-spam implementations in a router at the network layer Anti-spam implementations in a router at the network layer

2006-09-14

2009-10-20

Sam, Phirin (Department: 2419)

Multiplex communications

Pathfinding or routing

C709S206000, C726S022000

Reexamination Certificate

active

07606214

ABSTRACT:
In one embodiment, a router inspects at a network layer source addresses of network layer packets flowing through the router. The router compares the source addresses to addresses of computers employed by spammers, and performs a predetermined action on a particular network layer packet having a source address that belongs to a computer of a spammer. The predetermined action may involve dropping the particular network layer packet or limiting the data transfer rate of the particular network layer packet.

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