xenial (1) dhcpstarv.1.gz

Provided by: dhcpstarv_0.2.2-1_amd64 bug

NAME

       dhcpstarv - DHCP starvation attack.

SYNOPSIS

       dhcpstarv -h

       dhcpstarv [-epv] [-d MAC] -i IFNAME

OPTIONS

       -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 IFNAME.

       -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.

DESCRIPTION

       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.

       dhcpstarv 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 network.

       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.