Config ipv6 bgp Sonic

[wegarc]

I have bgp problem with ipv6 config for ipv4 is all ok operative 100%.

My bgp config is:

router bgp 266832
 no bgp ebgp-requires-policy
 neighbor 199.100.24.1 remote-as 174
 neighbor 2804:5330:2:6::1 remote-as 174
 !
 address-family ipv4 unicast
  network 45.238.146.0/24
  redistribute kernel
  redistribute connected
  redistribute static
 exit-address-family
 !
 address-family ipv6 unicast
  network 2803:8ca0::/42
 exit-address-family
exit
!
ip prefix-list LOCAL_VLAN_IPV4_PREFIX seq 5 permit 10.11.12.0/24
ip prefix-list LOCAL_VLAN_IPV4_PREFIX seq 10 permit 199.100.24.0/29
ip prefix-list LOCAL_VLAN_IPV4_PREFIX seq 15 permit 45.238.146.0/29
ip prefix-list LOCAL_VLAN_IPV4_PREFIX seq 20 permit 45.238.146.16/29
ip prefix-list LOCAL_VLAN_IPV4_PREFIX seq 25 permit 45.238.146.8/29
ip prefix-list LOCAL_VLAN_IPV4_PREFIX seq 30 permit 45.238.146.24/30
ip prefix-list LOCAL_VLAN_IPV4_PREFIX seq 35 permit 45.238.146.32/28
ip prefix-list LOCAL_VLAN_IPV4_PREFIX seq 40 permit 10.10.16.0/24
!
ip nht resolve-via-default
!
end

Rutas ipv6.
sonic# show ipv6 route
Codes: K - kernel route, C - connected, S - static, R - RIPng,
       O - OSPFv3, I - IS-IS, B - BGP, N - NHRP, T - Table,
       v - VNC, V - VNC-Direct, A - Babel, F - PBR,
       f - OpenFabric,
       > - selected route, * - FIB route, q - queued, r - rejected, b - backup
       t - trapped, o - offload failure

C>* 2804:5330:2:6::/112 is directly connected, Vlan2000, 00:12:19
K>* 2804:5330:2:6::2/128 [0/1024] is directly connected, Vlan2000, 00:12:19
K>* fd00::/80 [0/1024] is directly connected, docker0, 00:12:19
C * fe80::/64 is directly connected, Vlan2222, 00:09:48
C * fe80::/64 is directly connected, Ethernet8, 00:12:19
C * fe80::/64 is directly connected, Ethernet4, 00:12:19
C * fe80::/64 is directly connected, Ethernet0, 00:12:19
C * fe80::/64 is directly connected, Vlan500, 00:12:19
C * fe80::/64 is directly connected, Vlan2223, 00:12:19
C * fe80::/64 is directly connected, Vlan2100, 00:12:19
C * fe80::/64 is directly connected, Vlan210, 00:12:19
C * fe80::/64 is directly connected, Vlan209, 00:12:19
C * fe80::/64 is directly connected, Vlan204, 00:12:19
C * fe80::/64 is directly connected, Vlan202, 00:12:19
C * fe80::/64 is directly connected, Vlan2000, 00:12:19
C>* fe80::/64 is directly connected, Bridge, 00:12:19
sonic#

Anexo bgp summ.
sonic# show bgp summ

IPv4 Unicast Summary (VRF default):
BGP router identifier 199.100.24.2, local AS number 266832 vrf-id 0
BGP table version 16
RIB entries 21, using 3864 bytes of memory
Peers 2, using 1446 KiB of memory

Neighbor         V         AS   MsgRcvd   MsgSent   TblVer  InQ OutQ  Up/Down State/PfxRcd   PfxSnt Desc
199.100.24.1     4        174        16        23        0    0    0 00:12:40            1       16 N/A
2804:5330:2:6::1 4        174       660      1008        0    0    0    never         Idle        0 N/A

Total number of neighbors 2

Show bgp neighbor.
sonic# show ip bgp neighbors  2804:5330:2:6::1
BGP neighbor is 2804:5330:2:6::1, remote AS 174, local AS 266832, external link
  BGP version 4, remote router ID 38.28.20.11, local router ID 199.100.24.2
  BGP state = Idle
  Last read 00:13:40, Last write 00:00:00
  Hold time is 180, keepalive interval is 60 seconds
  Configured tcp-mss is 0, synced tcp-mss is 0
  Graceful restart information:
    Local GR Mode: Helper*
    Remote GR Mode: NotApplicable
    R bit: False
    Timers:
      Configured Restart Time(sec): 120
      Received Restart Time(sec): 0
  Message statistics:
    Inq depth is 0
    Outq depth is 0
                         Sent       Rcvd
    Opens:                387         13
    Notifications:        768        742
    Updates:                0          0
    Keepalives:             0          0
    Route Refresh:          0          0
    Capability:             0          0
    Total:               1155        755
  Minimum time between advertisement runs is 0 seconds

 For address family: IPv4 Unicast
  Not part of any update group
  Community attribute sent to this neighbor(all)
  0 accepted prefixes

  Connections established 0; dropped 0
  Last reset 00:13:40,   Notification sent (OPEN Message Error/Unsupported Capability)
  Message received that caused BGP to send a NOTIFICATION:
    FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF
    004B0104 00AE00B4 261C140B 2E020601
    04000200 01020280 00020202 00020641
    04000000 AE021405 12000100 01000200
    01000200 02000100 800002
Local host: 2804:5330:2:6::2, Local port: 55964
Foreign host: 2804:5330:2:6::1, Foreign port: 179
Nexthop: 199.100.24.2
Nexthop global: 2804:5330:2:6::2
Nexthop local: fe80::3e2c:99ff:fef2:c10d
BGP connection: shared network
BGP Connect Retry Timer in Seconds: 120
Next start timer due in 1 seconds
Read thread: off  Write thread: off  FD used: -1

Please help me!