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How can I protect my dhcpd application on a Debian system from DHCP starvation attacks? Is there any option in the .conf file?

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    Give IP addresses based on MAC. If you have too many machines to do that, you can hire somebody to solve the problem for you. – Satō Katsura Mar 15 '17 at 13:08
  • This is a public network. I was just wondering if there was an option within the application itself to protect against this. – Stephen Mar 15 '17 at 13:11
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    large subnets and short lease times – ivanivan Mar 15 '17 at 13:30
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    Which dhcp server are you using? – ilkkachu Mar 15 '17 at 13:47
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    @Stephen, yes, but which DHCP server program? ISC:s DHCP server in the isc-dhcp-server package? dnsmasq? Some other? Or do you just want an answer for some DHCP server, any one? – ilkkachu Mar 15 '17 at 14:21
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The layer 2 network should be protected, means that security measure must be in place: dhcp snooping (bind ip:mac in database) dynamic arp inspection (work hand in hand with dhcp snooping) port security - be strict, one mac address per access port if not trunking

By doing this, you can guarantee, when a device is plug into the network that it is unique

Configure DHCP server to only offer ip address to a known set of MAC address

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