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Omoeba's avatar
Omoeba
New Contributor

Ipv6 auto config

does cox use dhcpv6 or slaac( auto configuration) for ipv6?

5 Replies

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  • Hi Omoeba,

    We aren't able to confirm the answer to this question at this time. We'll update you as soon as we can.

  • grymwulf's avatar
    grymwulf
    Contributor II

    Since I've seen Cox issue /56 addresses for IPv6 that would eliminate the possibility of using slaac - as that requires a /64 - "Moreover, it is important to note that SLAAC most commonly uses eui-64 format for address assignment. This means that IPv6 addresses will be built from a combination of the Layer 3 subnet prefix and the MAC address of the client. The requirement for SLAAC is that the LAN segment must use a /64 mask."

  • grymwulf's avatar
    grymwulf
    Contributor II

    Your router needs to send a 'hint' requesting the /56 address (or /60, /58) with its DHCP announce

  • Omoeba's avatar
    Omoeba
    New Contributor

    Ipv6 not working every 2-3 days, need to change ipv6 settings to auto detect and refresh ipv6 connection