Can't assign IPv6 address on 3650

[altyoung]

On my 3650-48PS running on SW 3.03.05SE, I tried to assign an IPv6 address to interface Gi 1/0/1 , but only see these options: dhcp, flow, mld, nd, snooping, traffic-filter when I do IPv6  ? .   Can someone please let me know why I am not seeing IPv6 address options and how get I get it on the switch?   Thank you very much.

[Seb Rupik]

Have you enabled the appropriate SDM template?:

sdm prefer dual-ipv4-and-ipv6 default

[altyoung]

I only see Advanced option when I do SDM Prefer?  I tried it before posting this message here.  Any other idea?     

[Jose Quesada]

First, try to enable IPv6 on the switch with the command "ipv6 unicast-routing" on global config mode. Then, go to the interface and try again.

If the IOS doesn't accepts the command, it might be due that the IOS is not IPv6-ready.

[altyoung]

I did do "ipv6 unicast-routing", but "Ipv6 Address" was not available for the interface.  The switch does have some Ipv6 options like I  "IPv6 Global-Prefix" is available.   Does this mean it's IPv6 ready?   Thanks.  

[Jose Quesada]

don't forget to change the interface from L2 to L3 with the "no switchport" command as suggested previously.

[Nagendra Kumar Nainar · Accepted solution]

Hi,

By default the ports on 3650 will be Layer2. When the port is Layer2 you only will see dhcp, flow, mld, nd, snooping etc. 

Try changing the port to Layer 3 by configuring "no switchport". You should be able to configure the IPv6 address after changing it to L3.

HTH,

Nagendra

[altyoung]

changing port to layer 3 worked.  Thank you all for your help.