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ipv6calc(8) system administration ipv6calc(8)




ipv6calc [ OPTIONS] <input data>
or in pipe mode
echo <input data> | ipv6calc [OPTIONS]


This program formats and calculates IPv6/IPv4/MAC addresses and can do many more tricky things, e.g. includes a pipe filter capability.


General options:
[-d|--debug DEBUGVALUE] : debug value (bitwise like) can also be set by IPV6CALC_DEBUG environment value
[-v|--version [-v [-v]]] : version information (2 optional detail levels)
[-v|--version -h] : explanation of feature tokens
<TP [-V|--verbose] : be more verbose
[-h|--help|-?] : this online help
External database options (depending on compiled-in suppport):
[--db-ip2location-disable ] : IP2Location support disabled
[--db-ip2location-dir DIRECTORY] : IP2Location database directory (default: /usr/share/IP2Location)
[--db-geoip-disable ] : GeoIP support disabled
[--db-geoip-dir DIRECTORY] : GeoIP database directory (default: /usr/share/GeoIP)
Special options:
[-q|--quiet] : be more quiet (auto-enabled in pipe mode)
[-f|--flush] : flush each line in pipe mode
Usage with new style options:
[--in|-I INPUT-TYPE] : specify input type (default: autodetect)
[--out|-O OUTPUT-TYPE] : specify output type (sometimes: autodetect)
[--action|-A ACTION] : specify action (default: format conversion, sometimes: autodetect)
[<format option> ...] : specify format options
<input data> [...] : input data

Available input types: [-m] -I|--in -?|-h|--help

Available output types: [-m] -O|--out -?|-h|--help

Available action types: [-m] -A|--action -?|-h|--help

Other usage:
--showinfo|-i [--machine_readable|-m] : show information about input data
--showinfo|-i --show_types : show available types on '-m'
Usage with shortcut options: <shortcut option> [<format option> ...] <input data>
for more information and available format options use: <shortcut option> -?|-h|--help
-r|--addr2ip6_int (-O
-r|--addr_to_ip6int (-O
-a|--addr2ip6_arpa (-O
-a|--addr_to_ip6arpa (-O
-b|--addr_to_bitstring (-O bitstring)
--addr2compaddr (--printcompressed)
--addr_to_compressed (--printcompressed)
--addr2uncompaddr (--printuncompressed)
--addr_to_uncompressed (--printuncompressed)
--addr_to_base85 (-I ipv6addr -O base85)
--base85_to_addr (-I base85 -O ipv6addr)
--mac_to_eui64 (-I mac -O eui64)
--addr2fulluncompaddr (--printfulluncompressed)
--addr_to_fulluncompressed (--printfulluncompressed)
--addr2if_inet6 (-I ipv6addr -O ifinet6)
--addr_to_ifinet6 (-I ipv6addr -O ifinet6)
--if_inet62addr (-I ifinet6 -O ipv6addr --printcompressed)
--ifinet6_to_compressed (-I ifinet6 -O ipv6addr --printcompressed)
--eui64_to_privacy (-I iid_token -O iid_token -A genprivacyiid)
--ipv4_to_6to4addr (-I ipv4 -O ipv6addr -A conv6to4)
See inline help or documentation for more.


Report bugs to <> or to the authors.


To run this program the standard way type:
ipv6calc --showinfo -i -m ::1
ipv6calc --showinfo -m
ipv6calc --showinfo --show_types
ipv6calc --ipv4_to_6to4addr
ipv6calc --addr_to_uncompressed ::1
Usage of filters in pipe mode:
cat <Apache-Logfile> | ipv6calc -E,iid-random


Peter Bieringer <>
0.99.0 Peter Bieringer <>