S6800-54QF配置DHCPv6终端无法与核心网关设备主动建立IPv6表项

S6800-54QF作为核心交换机网关设备配置DHCPv6，终端能够正常获取到核心分配的IPv6地址、DNS，网关为FE80::开头的，不是我想要分配的核心交换机IPv6接口地址。目前遇到的问题是，终端需要Ping一下核心交换机IPv6的接口地址建立IPv6表现后才能正常访问出去，这是什么问题？

interface VLan.-interface10

 ip add ress 10.86.28.254 255.255.255.0

 dhcp client identifier ascii 8c946a8a3418-VLAN0010

 ipv6 dhcp select server

 ipv6 dhcp server apply pool 10

 iPV6 address 2406:440:3428:101:FFF:A56:2800:FF09/120

 ipv6 nd autoconfig managed address flag

 ipv6 nd autoconfig other- flag

 undo ipv6 nd ra halt

#

interface Vlan-inte rfacell

 ip address 10.86.29.254 255.255.255.0

 dhcp client identifier ascii 8c946a8a3418-VLAN0011

 ipv6 dhcp select server

 ipv6 dhcp server apply pool 11

 ipv6 address 2406:440:3428:105:FFFF:A56:2900:FF09/120

 ipv6 nd autoconfig managed-address-flag

 ipv6 nd autoconfig other-flag

 undo ipv6 nd ra halt

#

interface Vlar-interface36

 ip address 10.8630:254 255:255.255.0

 dhcp client identifier ascii 8c946a8a3418-VLAN0036

 ipv6 dhcp select server

 ipv6 dhcp server apply pool 36

 ipv6 address 2406:440:3428:106:FFFF:A56:300:FF09/120

 ipv6 nd autoconfig managed-address-flag

 ipv6 nd autoconfig other-flag

 undo ipv6 nd ra halt

#

ipv6 dhcp pool 10

 network 2406:440:3428:101:FFFF:A56:2800:FF00/120 preferred-Lifetime432000 valid-lifetime864000

 address range 2406:440:3428:101:FFFF:A56:2800:FF50 2406:440:3428:101:FFFF:A56:2800:FFBD

 dns-server 240E:1F:1::1

 gateway-list 2406:44:3428:101:FFFF:A56:2800:FF09

#

ipv6 dhcp pool 11

 network 2406:440:3428:105:FFFF:A56:2900:FF00/120 preferred-lifetime432000 valid-lifetime864000

 address range 2406:440:3428:105:FFFF:A56:2900:FF50 2406:440:3428:105:FFFF:A56:2900:FFBD

 dns-server240E:1F:1::1

 gateway-List 2406:440:3428:105:F FFF:A56:2900:FF09

#

ipv6 dhcp pool 36

 network 2406:440:3428:106:FFFF:A56:3000:FF00/120 preferred-lifetime432000 valid-Lifetime864000

 address range 406:4403428:106:FFFF:A56:3000:FF50 2406:440:3428:106:FFFF:A56:3000:FFBD

 dns-server240E:1F:1::1

 gateway-list 2406:440:3428:106:FFFF:A56:3000:FF09