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networkingwiresharkipv6dhcp

Why ipv6 address already there before DHCP?

According to an ipv6 dhcp log (Wireshark) example:

https://packetpushers.net/wp-content/uploads/2011/10/dhcpv6_2.jpg

We can see the client's ipv6 address already there before doing DHCP (S.A.R.R.)

because protocol allowed it ? just do a confirmation with DHCP server to keep the existed ipv6 address?

Solution

  • IPv6 hosts may automatically generate IP addresses internally using stateless address autoconfiguration (SLAAC), or they may be assigned configuration data with DHCPv6.

    https://en.wikipedia.org/wiki/DHCPv6