dhcpstarv - DHCP starvation attack.
dhcpstarv [-epv] [-d MAC] -i IFNAME
- -d, --dstmac=MAC
- Use MAC as destination hardware address for DHCP
requests. Default is to use broadcast address.
- -e, --exclude=ADDRESS
- Ignore replies from server with IP address ADDRESS.
This must be valid IP address DHCP server include in replies as server ID.
Usually this is a primary IP address of interface which is connected to
client's network segment.
- -h, --help
- Print help and exit.
- -i, --ifname=IFNAME
- Send requests and receive responses on network interface
- -p, --no-promisc
- Do not set network interface to promiscuous mode. Some
servers send replies to hardware address stored in DHCP options in spite
of broadcast option presence, in which case this option cause
dhcpstarv not to receive server replies.
- -v, --verbose
- Print verbose messages.
DHCP starvation is attacking a DHCP server by sending a lot of requests to it.
This lead to server's address pool exhausting after which DHCP server is not
able to respond clients and give them new leases.
is tool that implements DHCP starvation attack. It requests
DHCP leases on specified interface, save them and renew on regular basis.
When a rogue DHCP server appear in network with DHCP infrastructure some clients
can get wrong network settings. Those rogue servers can be switched by users
by accident. The only solution to issue is to disconnect such server from
network. But it takes a lot of time to discover rogue server if network is
complicated, i.e. there are many network devices in it. As a temporary
solution you can attack rogue DHCP server until find and disconnect it from
Copyright (C) 2007 Dmitry Davletbaev
This program is licenced under GNU General Public License version 3.
This program comes with ABSOLUTELY NO WARRANTY. This is free software, and you
are welcome to redistribute it under certain conditions; see
<http://www.gnu.org/licenses/> for details.