This config will dropp all ipv6 packages on vlan 1

ASW-02# conf
ASW-02(config)# ipv6 access-list "drop-all-v6"
ASW-02(config-ipv6-acl)# 10 deny ipv6 ::/0 ::/0
ASW-02(config-ipv6-acl)# exit
ASW-02(config)# vlan 1
ASW-02(vlan-1)# ipv6 access-group "drop-all-v6" vlan
ASW-02(vlan-1)#