Actaully put the route adding under the conditional logic checking. Ticket #1408.
Send route delete message to blackhole.
Ticket #1408. Do not add static routes for automatically learned dns servers from dhcp if Allow override is not selected.
Actually correct check meaning.
Do not an ip of all 1s as a gateways since it cannot be pinged.
Revert changes to dhclient-script. Appears to have broken DNS servers from DHCP. Ticket #1428
use same egrep statement for both checks
Use full path to egrep
Use some Seth egrep foo to protect from compromised DHCP servers. CVE-2011-0997
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