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54 lines
1.9 KiB
ReStructuredText
54 lines
1.9 KiB
ReStructuredText
=====================================
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Configure IPv6 for generic DSL dialup
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=====================================
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------------
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Introduction
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------------
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This short article shows how to setup IPv6 on a standard DSL connection and how
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to handover the delegated prefix from your provider in your local LAN.
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It's compatible and tested for but not limited to:
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- Deutsche Telekom
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-------------------------
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Step 1 - General Settings
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-------------------------
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Go to :menuselection:`System --> Settings --> General` and check that **Prefer IPv4 over IPv6**
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is not ticked. This value is default so just check if it has been touched.
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Also enable **Allow DNS server list to be overridden by DHCP/PPP on WAN** at the
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bottom, so you get the correct DNS servers if you just use IPv4 ones.
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-------------------
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Step 2 - Allow IPv6
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-------------------
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Next go to :menuselection:`Firewall --> Settings --> Advanced` and verfiy that **Allow IPv6** is enabled.
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--------------------------------
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Step 3 - Interface Configuration
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--------------------------------
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In :menuselection:`Interfaces --> [WAN]` and set **IPv6 Configuration Type** to DHCPv6 and in section
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**DHCPv6 client configuration** at the bottom tick:
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- Request only an IPv6 prefix
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- Send IPv6 prefix hint
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- Use IPv4 connectivity
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Set the prefix size to the one your provider delegates, mostly /56 or 64, sometimes /48.
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Then change to :menuselection:`Interfaces --> [LAN]` and set **IPv6 Configuration Type** to **Track Interface**.
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At the bottom in section **Track IPv6 Interface** choose **IPv6 Interface** as WAN and for
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**IPv6 Prefix ID** a value of 0 is perfectly fine.
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Hit Apply and disable/enable the NICs of your internal systems. Depending on the system
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and vendor, also a reboot could be required.
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If you experience problems with the 24h disconnect disrupting connectivity, it may help to set **Prevent Release**
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in section :menuselection:`Interfaces --> Settings`.
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