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addr6 - Online in the Cloud

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This is the command addr6 that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


addr6 - An IPv6 address analysis and manipulation tool

SYNOPSIS


addr6 [-a IPV6_ADDR -i] [-d] [-d] [-q] [-s] [-j PREFIX] [-b TYPE] [-k SCOPE] [-w
UNICAST_TYPE] [-g IID_TYPE] [-J PREFIX] [-B TYPE] [-K SCOPE] [-W UNICAST_TYPE] [-G
IID_TYPE] [-v] [-h]

DESCRIPTION


addr6 is an IPv6 address analysis tool tool. It can employed identify the address
type/scope, and infer the type of Interface ID employed by an IPv6 address. Additionally,
addr6 can also produce statistics about a set of IPv6 addresses.

addr6 can filter lists of IPv6 addresses based on a number of criteria (address type,
address scope, prefixes, duplicate addresses, etc.). There are two types of filters:
"block filters" and "accept filters". If any "block filter" is specified, and IPv6
addresses matching any of those filters will be discarded. If any "accept filter" is
specified, any IPv6 address matching that filter will be accepted (and printed on stdout).

OPTIONS


addr6 takes its parameters as command-line options. Each of the options can be specified
with a short name (one character preceded with the hyphen character, as e.g. "-i") or with
a long name (a string preceded with two hyphen characters, as e.g. "--stdin").

-a IPV6_ADDRESS, --address IPV6_ADDRESS

This option ca be employed to specify a single IPv6 address that is meant to be
processed by the tool. This option is typically employed in conjunction with the
'-d' tool, to decode the IPv6 address in question.

-i, --stdin

This option request the tool to read IPv6 addresses from standard input (stdin),
until an EOF (End-Of-File) condition is found.

-j PREFIX, --accept PREFIX

Accept IPv6 addresses belonging to the specified IPv6 prefix (PREFIX/LEN).

-b TYPE, --accept-type TYPE

Accept IPv6 addresses belonging to the specified address type. Valid address types
are:

* unicast
* unspec
* multicast

-k SCOPE, --accept-scope SCOPE

Accept IPv6 addresses belonging to the specified address scope. Valid address
scopes are:

* reserved
* interface (or "interface-local)
* link (or "link-local")
* admin (or "admin-local")
* site (or "site-local")
* admin (or "admin-local")
* organization (or "organization-local")
* global
* unassigned
* unspecified

-w UNICAST_TYPE, --accept-utype UNICAST_TYPE

Accept IPv6 addresses belonging to the specified unicast type. Valid unicast
address types are:

* loopback
* ipv4-compat
* ipv4-mapped
* link-local
* site-local
* unique-local
* 6to4
* teredo
* global

-g IID_TYPE, --accept-iid IID_TYPE

Accept unicast IPv6 addresses with an Interface ID of the specified type. Valid
Interface ID types are:

* ieee
* isatap
* ipv4-32
* ipv4-64
* ipv4-all
* embed-port
* embed-port-rev
* embed-port-all
* low-byte
* byte-pattern
* random

-J PREFIX, --block PREFIX

Block IPv6 addresses belonging to the specified IPv6 prefix (PREFIX/LEN).

-B TYPE, --block-type TYPE

Block IPv6 addresses belonging to the specified address type. Valid address types
are:

* unicast
* unspec
* multicast

-K SCOPE, --block-scope SCOPE

Block IPv6 addresses belonging to the specified address scope. Valid address scopes
are:

* reserved
* interface (or "interface-local)
* link (or "link-local")
* admin (or "admin-local")
* site (or "site-local")
* admin (or "admin-local")
* organization (or "organization-local")
* global
* unassigned
* unspecified

-W UNICAST_TYPE, --block-utype UNICAST_TYPE

Block IPv6 addresses belonging to the specified unicast type. Valid unicast address
types are:

* loopback
* ipv4-compat
* ipv4-mapped
* link-local
* site-local
* unique-local
* 6to4
* teredo
* global

-G IPV6_ADDRESS, --block-iid IID_TYPE

Block unicast IPv6 addresses with an Interface ID of the specified type. Valid
Interface ID types are:

* ieee
* isatap
* ipv4-32
* ipv4-64
* ipv4-all
* embed-port
* embed-port-rev
* embed-port-all
* low-byte
* byte-pattern
* random

-q, --print-unique

This option causes the tool to eliminate duplicate addresses from the list of IPv6
addresses read from standard input (stdin). That is, when reading a list of
addresses from stdin, only the first "copy" of each address will be processed by
the tool (with later ones being simply ignored).

-c, --print-canonic

This option request the tool to print the IPv6 address specfied with the '-a'
option (or a list of addresses read froom stdin if the '-i' option was set) in its
canonic form. This is useful to before comparing textual representations of IPv6
addresses, since the same address can usually be written in multiple different
ways.

-d, --print-decode

This option request the tool to decode the IPv6 address specfied with the '-a'
option (or a list of addresses read froom stdin if the '-i' option was set). The
current version of the tool supports only decode type, in which information is
printed for each address with the following syntax:

AddressType=AddressSubtype=Scope=IIDType=IIDSubtype

This simple syntax is meant to be easy for scripting purposes. Future versions of
the tool will incorporate a human-friendly mode.

-s, --print-stats

This option requests the tool to produce address statistics from the list of IPv6
addresses read from standard input. This option should be used in conjunction with
the '-i' option, such that multiple addresses can be given as input to addr6.

addr6 will always print the total number of IPv6 addresses that have been examined,
and the percentage of unicast, multicast, and unspecified (::) addresses. If at
least one unicast address is identified, unicast-specific statistics will be
printed. In the same way, if at least one multicast address is identified, then
multicast-specific statistics will be printed.

Unicast-specific statistics include:

1) Number and percentage of each unicast address type (global
unicast, link-local unicast, 6to4, Teredo, etc.).

2) Number and percentage of each of the different Interface
ID types (IEEE-based, low-byte, etc.).

Only those unicast address types for which there are multiple possible types of
Interface-IDs will be considered for the Interface-ID assessment. Namely,

* 6to4
* Global Unicast
* Link-local Unicast
* Site-local unicast addresses (deprecated)
* Unique local unicast addresses

Unicast address types such as 'Teredo' are not considered by this analysis, since
they have a single type of Interface-ID, as specified by the corresponding
specifications.

Multicast-specific statistics include:

1) Number of addresses and percentage of each multicast
address type (Permanent, Embedded-RP, etc).

2) Number addresses and percentage of each of the multicast
address scope different Interface ID types (Link, Interfa-
ce, Global, etc.)

-v, --verbose

This option selects the "verbosity" of the tool. If this option is left
unspecified, only minimum information is printed.

-h, --help

Print help information for the addr6 tool.

EXAMPLES


The following sections illustrate typical use cases of the addr6 tool.

Example #1

$ cat addresslist.txt | addr6 -i -q

addr6 will read IPv6 addresses from stdin ('-i' option), and will only print the first
instance of each address ('-q' option), thus effectively removing any duplicates from the
list.

Note: In this particular scenario, the address list results
from the command 'cat addresslist.txt', that has its output
redirected to the standard input of the addr6 tool.

Example #2

$ addr6 -a fc00::1

Decode the IPv6 address specified with the '-a' option. Note that while the '-d' option
was not set, this is the default behavior of the tool (unless overridden y another
option).

Example #3

$ cat addresslist.txt | addr6 -i -q -s

addr6 will read IPv6 addresses from stdin ('-i' option), will ignore duplicate addresses
('-q' option), and will print statistics about the processed IPv6 addresses.

Note: In this particular scenario, the address list results
from the command 'cat addresslist.txt', that has its output
redirected to the standard input of the addr6 tool.

Example #4

$ cat addresslist.txt | addr6 -i -q -d

addr6 will read IPv6 addresses from stdin ('-i' option), will ignore duplicate addresses
('-q' option), and will decode each of the remaining addresses.

Note: In this particular scenario, the address list results
from the command 'cat addresslist.txt', that has its output
redirected to the standard input of the addr6 tool.

Example #5

$ cat addresslist.txt | addr6 -i -j 2001:db8::/16

addr6 will read IPv6 addresses from stdin ('-i' option), will discard any addresses that
do not belong to the prefix 2001:db8::/16 (i.e., it will "accept" addresses belonging to
such prefix).

Note: In this particular scenario, the address list results
from the command 'cat addresslist.txt', that has its output
redirected to the standard input of the addr6 tool.

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