DHCPv6 Relay to MIST not working as expected

DHCPv6 Stats not incrementing.

Topology:

Wifi-----MIST------ACX(dhcpv6 relay agent)

DHCPv6 Statistics:

syntax error, expecting .

root@JNPR> show dhcpv6 relay statistics routing-instance Guest

Dhcpv6 Packets dropped:

Total 0

Messages received:

DHCPV6_DECLINE 0

DHCPV6_SOLICIT 0

DHCPV6_INFORMATION_REQUEST 0

DHCPV6_RELEASE 0

DHCPV6_REQUEST 0

DHCPV6_CONFIRM 0

DHCPV6_RENEW 0

DHCPV6_REBIND 0

DHCPV6_RELAY_FORW 0

DHCPV6_LEASEQUERY_REPLY 0

DHCPV6_LEASEQUERY_DATA 0

DHCPV6_LEASEQUERY_DONE 0

DHCPV6_ACTIVELEASEQUERY 0

Messages sent:

DHCPV6_ADVERTISE 0

DHCPV6_REPLY 0

DHCPV6_RECONFIGURE 0

DHCPV6_RELAY_REPL 0

DHCPV6_LEASEQUERY 0

DHCPV6_LEASEQUERY_REPL 0

DHCPV6_LEASEQUERY_DATA 0

DHCPV6_LEASEQUERY_DONE 0

DHCPV6_ACTIVELEASEQUERY 0

DHCP Configuration on ACX

set routing-instances Guest forwarding-options dhcp-relay dhcpv6 group DHCPv6-Server active-server-group Infoblox

set routing-instances Guest forwarding-options dhcp-relay dhcpv6 group DHCPv6-Server interface irb.6

set routing-instances Guest forwarding-options dhcp-relay dhcpv6 server-group Infoblo x.x.x.x.x

ACX was not receiving any DHCPv6 solicits. MIST requires that the ACX or any IPv6 Relay agent to send a Router-Advertisement with Managed bit set (Mbit) to indicate that DHCPV6 will be used. This informs MIST to forward DHCPv6 solicits from wireless devices.

On ACX configured the following.

set protocols router-advertisement interface <interface> managed-configuration