[c-nsp] no bgp route from 0.0.0.0 for a interface ip address

[tao liu]

Why bgp route from 0.0.0.0 doesn't exist, 192.168.2.50 is a interface ip
address on routerB!
Instead bgp route for 192.168.2.50 is from "192.168.96.1" and
"192.168.2.49", it is strange.
we redistribute static and connected on all four routers.
the topology like below:


lo0:192.168.96.2                lo0:192.168.96.1
routerA                 ----   ebgp  -----     routerB
------ibgp-------- routerBB
              192.168.2.49
192.168.2.50                                             |
|
|
|----------------ibgp--------------------------routerAA--------ebgp---------------

routerB# show ip bgp 192.168.2.50
BGP routing table entry for 192.168.2.50/32, version 151
Paths: (2 available, best #2, table default, RIB-failure(17) - next-hop
mismatch
)
  Advertised to update-groups:
     1
  65450
    192.168.96.1 from 192.168.96.1 (192.168.96.1)
      Origin incomplete, metric 0, localpref 100, valid, internal
  65450
    192.168.2.49 from 192.168.2.49 (192.168.0.2)
      Origin incomplete, metric 0, localpref 100, valid, external, best