#dhcpv6 — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #dhcpv6, aggregated by home.social.
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RFC 9915: #DHCPv6
#IPv6 dispose de 3 mécanismes principaux pour l'allocation d'une adresse IP à une machine. L'allocation statique, « à la main », le système d'« autoconfiguration » SLAAC et #DHCP. DHCP pour IPv6 était normalisé dans le RFC 8415, que notre #RFC met à jour. Le protocole n'a guère changé, le principal changement est la suppression de certaines fonctions peu utilisées.
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About fucking time... Android finally doing proper DHCPv6. When this is live on my phone I can turn off SLAAC, and not have Windows insist on using it (yes, there's meant to be ways to stop Windows from using SLAAC, so it only uses DHCPv6, but I never saw any of them work). *I* don't want 'random' addresses, I want predictable ones for firewalling and ACLs: https://android-developers.googleblog.com/2025/09/simplifying-advanced-networking-with.html?m=1
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About fucking time... Android finally doing proper DHCPv6. When this is live on my phone I can turn off SLAAC, and not have Windows insist on using it (yes, there's meant to be ways to stop Windows from using SLAAC, so it only uses DHCPv6, but I never saw any of them work). *I* don't want 'random' addresses, I want predictable ones for firewalling and ACLs: https://android-developers.googleblog.com/2025/09/simplifying-advanced-networking-with.html?m=1
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About fucking time... Android finally doing proper DHCPv6. When this is live on my phone I can turn off SLAAC, and not have Windows insist on using it (yes, there's meant to be ways to stop Windows from using SLAAC, so it only uses DHCPv6, but I never saw any of them work). *I* don't want 'random' addresses, I want predictable ones for firewalling and ACLs: https://android-developers.googleblog.com/2025/09/simplifying-advanced-networking-with.html?m=1
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About fucking time... Android finally doing proper DHCPv6. When this is live on my phone I can turn off SLAAC, and not have Windows insist on using it (yes, there's meant to be ways to stop Windows from using SLAAC, so it only uses DHCPv6, but I never saw any of them work). *I* don't want 'random' addresses, I want predictable ones for firewalling and ACLs: https://android-developers.googleblog.com/2025/09/simplifying-advanced-networking-with.html?m=1
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About fucking time... Android finally doing proper DHCPv6. When this is live on my phone I can turn off SLAAC, and not have Windows insist on using it (yes, there's meant to be ways to stop Windows from using SLAAC, so it only uses DHCPv6, but I never saw any of them work). *I* don't want 'random' addresses, I want predictable ones for firewalling and ACLs: https://android-developers.googleblog.com/2025/09/simplifying-advanced-networking-with.html?m=1
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[Перевод] Практическое руководство по атакам на IPv6 в локальной сети
Отключение IPv6 на шлюзе давно перестало быть надежной защитой. Протокол по умолчанию активен на большинстве клиентских машин, которые периодически отправляют в сеть служебные запросы вроде Router Solicitation. Именно эта «скрытая» активность открывает двери для целого класса атак, позволяющих перехватить трафик, подменить DNS или провести NTLM-Relay. В этой статье мы подробно, с примерами кода на Python/Scapy и командами для настройки, рассмотрим самые распространенные векторы атак на IPv6 в локальном сегменте: RA Spoofing: Как навязать себя в качестве шлюза по умолчанию. RDNSS Spoofing: Как стать DNS-сервером для современных ОС без DHCPv6. DHCPv6-атаки: Механика работы mitm6 и ее ручная реализация. Пассивный сбор данных: Как составить карту сети, просто слушая эфир. Материал будет полезен пентестерам, сетевым инженерам и системным администраторам, которые хотят понять реальные риски IPv6 и научиться им противостоять.
https://habr.com/ru/articles/930526/
#ipv6 #пентест #RA_Spoofing #RDNSS #DHCPv6 #Scapy #MITM #Kali_Linux #информационная_безопасность #infosec
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For those who specialize in DHCPv6 and systemd: Is there a way to tell the DHCPv6 server "If this IP is available, just give me it, don't give me anything else", or at least get systemd to do that? I'm trying to make an oracle cloud instance running Arch+systemd-networkd that uses DHCPv6 for IP configuration only use one of two IPs assigned to the oracle instance, but leave the other one unused so I can do NDP proxying and route it to my laptop over wireguard, giving my laptop a public IPv6 address as a result, but it appears that oracle is forcing my VPS to use both IPv6 addresses, which is not what I want.
Redacted logs, for context:Jun 18 06:08:27 somewhere systemd-networkd[-1]: eth0: DHCPv6 address 2000::4201/128 (valid for 1d 5
9min 59s, preferred for 23h 59min 59s)
Jun 18 06:08:27 somewhere systemd-networkd[-1]: eth0: DHCPv6 address 2000::1337/128 (valid for 1d 5
9min 59s, preferred for 23h 59min 59s)Feel free to boost this for increased visibility if you wish, and if you know of any mailing lists or IRC channels I should ask on, please let me know.
Relevant tags to try to help people who might know something see this:
#dhcp #ipv6 #systemd #oracle #dhcpv6 #networking #systemdnetworkd #systemd-networkd -
#Kea 2.7.9 (dev) has been released (#DHCP / #DHCPv4 / #DHCPv6 / #DNS / #ISC / #InternetSystemsConsortium) https://www.isc.org/kea/
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#Kea 2.4.2 (old stable) has been released (#DHCP / #DHCPv4 / #DHCPv6 / #DNS / #ISC / #InternetSystemsConsortium) https://www.isc.org/kea/
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#Kea 2.6.3 (stable) has been released (#DHCP / #DHCPv4 / #DHCPv6 / #DNS / #ISC / #InternetSystemsConsortium) https://www.isc.org/kea/
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So … my ideal DDI solution consists of:
- #Kea #DHCPv4 #DHCPv6
- #PowerDNS Auth
- #ISC #Stork for Kea Management
- Custom application, that can
- Translate Kea Leases into a PowerDNS Remote backend
- Manipulate PowerDNS through its HTTP Api (i.e. an Admin interface)Stork apparently got the ability to manage/configure Kea, so that's something I don't have to build.
Why not NSUpdate? Because it sucks.
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#Kea 2.7.0 (dev) has been released (#DHCP / #DHCPv4 / #DHCPv6 / #DNS / #ISC / #InternetSystemsConsortium) https://www.isc.org/kea/
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#Kea 2.6.0 (stable) has been released (#DHCP / #DHCPv4 / #DHCPv6 / #DNS / #ISC / #InternetSystemsConsortium) https://www.isc.org/kea/
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I'm trying DHCP and DHCPv6 on an Arduino Uno and I'm wondering why it doesn't work ... the script would use 264.3% RAM (5412 bytes / 2048 bytes).
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Are there any #Ubiquiti users who made #IPv6 over #PPPoE with #DHCPv6 work (prefix delegation)? I have spent months debugging it while feeding a support ticket that goes nowhere. I can see packets that advertise the network prefix allocated by the ISP but not replies to router solicitations later. In effect, I never end up with an IPv6 on the router (#UDMPro).
Obviously, the ISP's #Huawei router just works...
Did I ever mention my love-hate relationship with Ubiquiti?!
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heise-Angebot: c’t-Workshop: Einführung in den DHCP-Server Kea
Der moderne DHCP-Server Kea bietet zahlreiche Vorteile gegenüber älteren Konkurrenten. Der praxisorientierte c’t-Workshop erklärt, wie Sie davon profitieren.
c’t-Workshop: Einführung in den DHCP-Server Kea -
heise-Angebot: c’t-Workshop: Einführung in den DHCP-Server Kea
Der moderne DHCP-Server Kea bietet zahlreiche Vorteile gegenüber älteren Konkurrenten. Der praxisorientierte c’t-Workshop erklärt, wie Sie davon profitieren.
c’t-Workshop: Einführung in den DHCP-Server Kea -
heise-Angebot: c’t-Workshop: Einführung in den DHCP-Server Kea
Kea ist der Nachfolger des Klassikers ISC-DHCP. Der c’t-Workshop zeigt die Vorteile des neuen DHCP-Servers und wie man Kea installiert, einrichtet und wartet.
c’t-Workshop: Einführung in den DHCP-Server Kea -
New RIOT release online https://github.com/RIOT-OS/RIOT/releases/tag/2021.10. Thanks, Benjamin Valentin for managing! New features include #FIDO2, #RPL over #BLE , GNRC TCP, #DHCPv6 relay agent +++ #IoT #openSource #operatingSystem
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JunOS: IPv6 DHCPv6 Client + PD
Im Zuge meiner Unitymedia Umstellung habe ich auch native IPv6 Konnektivität (via DHCPv6 + Prefix Delegation) erhalten, welche ich zuvor mit einem Tunnel von Hurricane Electric realisiert hatte. Auf der Fritzbox selbst funktioniert die Dual-Stack Adressierung logischerweise out-of-the-box. Ich nutze allerdings den
https://www.commander1024.de/wordpress/2019/07/junos-ipv6-dhcpv6-client-pd/
#DHCPv6 #IPv6 #Juniper #JunOS #Networking #RouterAdvertisement
