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Configure DHCPv6 on a Layer 3 Switch

us flag

I am training under Packet Tracer and I would like to be able to assign IPv6 addresses to my VLANs using a Layer 3 Switch as a DHCPv6 server (Between Layer 3 Switch and PCs there is a normal Switch). I tried Stateless and Statefull but it seems that my subnets are not taken into account. I specify that the IPv6 address pool provided is 2001:0:ABCD::/64.

Here is a part of my Layer 3 Switch code:

ipv6 unicast-routing

ipv6 dhcp pool DHCPv6-VLAN-10
address prefix 2001:0:abcd:0:10::/80
dns-server 2001:0:abcd:0:30::3

interface vlan 10
ipv6 enable
ipv6 address 2001:0:abcd:0:10::2/80
ipv6 nd other-config-flag
ipv6 dhcp server DHCPv6-VLAN-10

But the IP Configuration on the PC displays :

Ipv6 request successful

IPv6 Address : 2001:0:abcd:0:6D0:BAFF:FE0B:1601

and do not display the DNS Server IPv6 address...

I guess the problem comes from the prefix but I'm not sure and especially I don't see how to do otherwise.

Do you have any suggestions for me?

vidarlo avatar
ar flag
Why /80 subnets? Don't do that. Use a /64. Things behave in weird ways if you don't.
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