About: packet filter

Premodifier: packet
Head noun: filter

Same concepts
http://dbpedia.org/resource/Firewall_(computing)

Broader concepts

label	provenance	confidence
component	isap:422882945	0.617002
device	isap:389410611	0.499251
firewall	isap:104005255	0.361720

Narrower concepts

label	provenance	confidence
firewall	isap:480268662	0.574461
router	isap:389241593	0.196665
pf	isap:108454611	0.183315
traffic	isap:270516390	0.115616