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49 lines
1.5 KiB
Markdown
49 lines
1.5 KiB
Markdown
* Program: dhcpdiscover
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This program checks the existence and more details of a DHCP server
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* About the code structure
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The Makefile found in the directory of this README is for OpenWRT. It can be imported as a package. Inside the src/ directory the C code of dhcpdiscover can be found. If you want to compile it for your computer execute: cd src && make
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* Licence information
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Code under GPLv3
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Copyright (c) 2001-2004 Ethan Galstad (nagios@nagios.org), 2013 OpenWRT.org
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* Contributors
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Mike Gore 25 Aug 2005: Modified for standalone operation
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Pau Escrich Jun 2013: Added -b option and ported to OpenWRT
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___________________________________________________________
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```
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Usage: dhcpdiscover [-s serverip] [-r requestedip] [-m clientmac ] [-b bannedip] [-t timeout] [-i interface]
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[-v] -s, --serverip=IPADDRESS
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IP address of DHCP server that we must hear from
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-r, --requestedip=IPADDRESS
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IP address that should be offered by at least one DHCP server
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-m, --mac=MACADDRESS
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Client MAC address to use for sending packets
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-b, --bannedip=IPADDRESS
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Server IP address to ignore
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-t, --timeout=INTEGER
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Seconds to wait for DHCPOFFER before timeout occurs
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-i, --interface=STRING
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Interface to to use for listening (i.e. eth0)
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-v, --verbose
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Print extra information (command-line use only)
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-p, --prometheus
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Print extra information in prometheus format
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-h, --help
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Print detailed help screen
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-V, --version
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Print version information
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Example: sudo ./dhcpdiscover -i eth0 -b 192.168.1.1
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```
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