https://github.com/nspeed-app/testdhcpv6pd

test DHCPv6 prefix delegation
https://github.com/nspeed-app/testdhcpv6pd

client dhcpv6

Last synced: 5 months ago
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test DHCPv6 prefix delegation

• Host: GitHub
• URL: https://github.com/nspeed-app/testdhcpv6pd
• Owner: nspeed-app
• License: bsd-3-clause
• Created: 2023-04-12T13:42:00.000Z (about 3 years ago)
• Default Branch: main
• Last Pushed: 2025-04-28T11:39:21.000Z (about 1 year ago)
• Last Synced: 2026-01-12T05:34:47.657Z (5 months ago)
• Topics: client, dhcpv6
• Language: Go
• Homepage:
• Size: 2.72 MB
• Stars: 7
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# testdhcpv6pd

Sends a DHCPv6-PD solicit message and displays the response (no request is done)

## usage

````text

testdhcpv6pd [options] [interface name] or [interface index]

Available options:

  -a string

        anonymize ip addresses (format = list word indexes to show) (default "12345678")

  -dll string

        specify type 3 DUID-LL using the provided mac address ( : or - separated digits)

  -dllt string

        specify type 1 DUID-LLT using the provided mac address ( : or - separated digits)

  -dlltt uint

        specify the Time field for DUID-LLT

  -duu string

        specify type 4 DUID-UUID (format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx)

  -p value

        ask for a specific prefix and/or length (repeatable, default is one prefix of ::/64)

  -s    dont print debug messages

  -test

        dry-run only,  print the solicit paquet, nothing is send on the network

  -v    display version

````

Without argument, `testdhcpv6pd` will display the available interfaces

Use -s to suppress packet debugging 

Use `-a format` to anonymize the prefix where `format` is a list of indexes. 

Each index, from 1 to 8, is the nibble (field) number of the address to display (`1111:2222:3333:4444:5555:6666:7777:8888`).

Non displayed parts will be replaced by `xxxx`.

For instance `-a 18` only displays the first and last part of the address.

Likewise, `-a 14` displays  `2a01:xxxx:xxxx:1234::/64` instead of `2a01:341c:325d:1234::/64`

Use `-p ::/60` to request a /60 prefix or even `-p 2a01:xxxx:xxxx:xxxx::/64` to request a specific prefix. 

Can be repeated. The values used for the `iaid` are 1, 2, etc

Other options allow to change the DUID.

## notes

Not tested on *bsd, plan9

Linux systems require *at least* `cap_net_bind_service` capability to bind to port 546 (see `man 7 capabilities`) or just use `sudo`

Darwin/MacOS: use `sudo`