wrong default route in BGP + IPv6

hello all,

I’m implementing an enviroment with BGP + Ipv6 but I m having a trouble with the routes that I receive from ISP. I received the correct route default , but the vyos send the packets to fe80 address… and this address fe80 is the link local address from ISP too. i dont know how to fix it…

vyos@vyos:~$ show ipv6 bgp
BGP table version is 0, local router ID is
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, R Removed
Origin codes: i - IGP, e - EGP, ? - incomplete

Network Next Hop Metric LocPrf Weight Path
*> ::/0 2804:xxxx:fba5::1
0 3549 i
*> 2801:xxxx:70::/48
:: 0 32768 i

Total number of prefixes 2

vyos@vyos:~$ show ipv6 route
Codes: K - kernel route, C - connected, S - static, R - RIPng, O - OSPFv3,
I - ISIS, B - BGP, * - FIB route.

B>* ::/0 [20/0] via fe80::xxxx:84c9, eth2, 04:24:21
C>* ::1/128 is directly connected, lo
S>* 2801:xxxx:70::/48 [254/0], bh
C>* 2801:xxxx:70::/64 is directly connected, eth3
S>* 2801:xxxx:10::/64 [1/0] via 2801:xxxx::1, eth3
C>* 2804:xxxx:fb70::/64 is directly connected, eth2
S>* 2804:xxxx:fba5::1/128 [1/0] via 2804:xxxx:fb70::1, eth2
C * fe80::/64 is directly connected, eth1
C * fe80::/64 is directly connected, eth2
C * fe80::/64 is directly connected, eth3
C>* fe80::/64 is directly connected, eth0

BGP neighbor is 2804:xxxx:fba5::1, remote AS xxxx, local AS xxxxx, external link
BGP version 4, remote router ID 67.x.x.155
BGP state = Established, up for 04:34:05
Last read 11:35:21, hold time is 90, keepalive interval is 30 seconds
Neighbor capabilities:
4 Byte AS: advertised and received
Route refresh: advertised and received(old & new)
Address family IPv4 Unicast: advertised
Address family IPv6 Unicast: advertised and received
Address family IPv6 Multicast: received
Graceful Restart Capabilty: received
Remote Restart timer is 120 seconds
Address families by peer:
Graceful restart informations:
End-of-RIB send: IPv6 Unicast
End-of-RIB received:
Message statistics:
Inq depth is 0
Outq depth is 0
Sent Rcvd
Opens: 2 2
Notifications: 0 1
Updates: 4 2
Keepalives: 818 852
Route Refresh: 0 0
Capability: 0 0
Total: 824 857
Minimum time between advertisement runs is 30 seconds
Update source is 2804:xxxx:fb70::2

For address family: IPv4 Unicast
Inbound soft reconfiguration allowed
Community attribute sent to this neighbor(both)
0 accepted prefixes

For address family: IPv6 Unicast
Community attribute sent to this neighbor(both)
1 accepted prefixes

Connections established 2; dropped 1
Last reset 04:34:15, due to BGP Notification received
External BGP neighbor may be up to 5 hops away.
Local host: 2804:xxxx:fb70::2, Local port: 35000
Foreign host: 2804:xxxx:fba5::1, Foreign port: 179
Nexthop global: 2804:xxxx:fb70::2
Nexthop local: ::
BGP connection: non shared network
Read thread: on Write thread: off