Hi,
I need to create a tracked object based on a specific IPv6 route which I learn through BGP on a 6in4 Tunnel interface (HE BGP 6in4 Tunnel).
This is the definition of my tracked object:
track 61 ipv6 route 2001:470::/32 reachability
I would now expect this tracked object 61 to be up as soon as there is a valid route for 2001:470::/32 in my IPv6 routing table.
And indeed there is a valid IPv6 route for that network.
#show bgp ipv6 u 2001:470::/32
BGP routing table entry for 2001:470::/32, version 12
Paths: (1 available, best #1, table default)
Advertised to update-groups:
1
Refresh Epoch 1
6939
2001:470:12:xxx::1 (FE80::D842:xxxx) from 2001:470:12:xxx::1 (72.52.92.xxx)
Origin IGP, localpref 100, valid, external, best
rx pathid: 0, tx pathid: 0x0
#show ipv6 route 2001:470::/32
Routing entry for 2001:470::/32
Known via "bgp xxx", distance 20, metric 0, type external
Route count is 1/1, share count 0
Routing paths:
2001:470:12:xxx::1
Last updated 00:18:09 ago
#show ipv6 route 2001:470:12:xxx::1
Routing entry for 2001:470:12:xxx::/64
Known via "static", distance 1, metric 0
Route count is 1/1, share count 0
Routing paths:
directly connected via Tunnel1
Last updated 00:20:36 ago
#show ipv6 cef 2001:470::/32
2001:470::/32
nexthop 2001:470:12:xxx::1 Tunnel1
But the tracked object itself remains down.
#show track 61
Track 61
IPv6 route 2001:470::/32 reachability
Reachability is Down (BGP)
1 change, last change 00:23:25
First-hop interface is unknown
Tracked by:
Static IPv6 Routing 0
Debug track:
track-tim (61) Delay timer allocate
track-cfg (61) ipv6 route 2001:470::/32 reachability (added)
track-sta (61) New IPv6 route 2001:470::/32, no ipv6 route->BGP, reachability Down
track-que (61) Queuing ADDED client event for all clients
track-que (61) Unqueuing ADDED client event for all clients
track-cli (61) Start tracking by Static IPv6 Routing
track-err (61) ipv6 route_assert_threshold: != TRACK_IPV6_ROUTE_METRIC_THRESHOLD
Does anybody have a idea why the tracked object reports "no ipv6 route->BGP" / "Down (BGP)" even though the is a valid route present? Are there any other constraints which must be fulfilled for tracked route objects to work?
Of course all further actions bound to this tracked object won't work either.
I am running recent IOS Version 15.5(3)M2.
best regards
David
