BGP hostentry update

[Arvin Gan]

Hi All,
     When I using bird 2.0.2 version ,I have an issue route include "unreachable", but I think this application is reasonable , anyone can help me ?
Error is reported in codes:
rt_update_hostentry()
{
  ....
      if (a->hostentry)
                {
                  /* Recursive route should not depend on another recursive route */ -------do you know the reason ??
                  log(L_WARN "Next hop address %I resolvable through recursive route for %N",
                      he->addr, n->n.addr);
                  goto done;
                }
   ......
}

bird> show route all
Table master4:
192.170.13.0/24      unreachable [bgp1 04:31:13.630 from 192.170.23.15] * (55/-) [AS2000i]
        Type: IBGP univ
        BGP.origin: IGP
        BGP.as_path: 2000
        BGP.next_hop: 192.170.40.13
        BGP.local_pref: 100
192.170.15.0/24      unicast [bgp1 04:31:13.630] * (55/0) [?]
        via 192.170.23.15 on A3IF1
        Type: IBGP univ
        BGP.origin: Incomplete
        BGP.as_path:
        BGP.next_hop: 192.170.23.15
        BGP.local_pref: 100
192.170.23.0/24      unicast [direct1 04:31:07.741] * (255)
        dev A3IF1
        Type: device univ
                     unicast [bgp1 04:31:13.630] (55/0) [?]
        via 192.170.23.15 on A3IF1
        Type: IBGP univ
        BGP.origin: Incomplete
        BGP.as_path:
        BGP.next_hop: 192.170.23.15
        BGP.local_pref: 100
192.170.27.0/24      unreachable [bgp1 04:31:13.630 from 192.170.23.15] * (55/-) [?]
        Type: IBGP univ
        BGP.origin: Incomplete
        BGP.as_path:
        BGP.next_hop: 192.170.15.27
        BGP.local_pref: 100
                     unicast [kernel2 04:31:06.395] (10)
        via 192.170.23.15 on A3IF1 onlink
        Type: inherit univ
        Kernel.source: 4
        Kernel.metric: 5
192.169.23.0/24      unicast [direct1 04:31:08.093] * (255)
        dev N1IF1
        Type: device univ
192.170.40.0/24      unicast [bgp1 04:31:13.630] * (55/0) [?]
        via 192.170.23.15 on A3IF1
        Type: IBGP univ
        BGP.origin: Incomplete
        BGP.as_path:
        BGP.next_hop: 192.170.23.15
        BGP.local_pref: 100
                     unicast [kernel2 04:31:06.395] (10)
        via 192.170.23.15 on A3IF1 onlink
        Type: inherit univ
        Kernel.source: 4
        Kernel.metric: 5

Thanks
Arvin
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