Assertion: firewall | /r/CapableOf | implement packet filtering
Facets:
value: at the router level
type: LOCATION
Source sentences:
text: Even if other firewalls are used, implementing packet filtering at the router level affords an initial degree of security at a low network layer.
text: Even if other firewalls are used, implementing packet filtering at the router level affords an initial degree of security at a low network layer.