unicast flooding on bridge0 and odd DUP! ICMP packets

[Rudy]

I am having issues when I add 3 vlans (all off of em1) to bridge0.

[1] when I ping ips on 2 of the 3 vlans, I get a redirect from localhost 
and then a dup
# ifconfig bridge0 10.7.0.1/16
# ping 10.7.1.31  (which lives on vlan714)
PING 10.7.1.31 (10.7.1.31): 56 data bytes
36 bytes from localhost (127.0.0.1): Redirect Host(New addr: 10.7.1.31)
Vr HL TOS  Len   ID Flg  off TTL Pro  cks      Src      Dst
  4  5  00 0054 af97   0 0000  3f  01 b6e4 10.7.0.1  10.7.1.31

64 bytes from 10.7.1.31: icmp_seq=0 ttl=64 time=286.316 ms
64 bytes from 10.7.1.31: icmp_seq=0 ttl=64 time=286.350 ms (DUP!)

# ping 10.7.1.5  (which lives on vlan7)
PING 10.7.1.5 (10.7.1.5): 56 data bytes
64 bytes from 10.7.1.5: icmp_seq=0 ttl=64 time=5.160 ms
64 bytes from 10.7.1.5: icmp_seq=1 ttl=64 time=3.392 ms
64 bytes from 10.7.1.5: icmp_seq=2 ttl=64 time=6.250 ms

So, what would possible cause my localhost to spit out the redirect? 
(the route is the same for both IPs:
arana-zebra> sh ip route 10.7.1.5
Routing entry for 10.7.0.0/16
   Known via "connected", distance 0, metric 1, best
   * directly connected, bridge0

arana-zebra> sh ip route 10.7.1.31
Routing entry for 10.7.0.0/16
   Known via "connected", distance 0, metric 1, best
   * directly connected, bridge0


[2] When putting live traffic on the links, I saw a lot of unicast 
traffic going over the wire.  I had 'PRIVATE' set on all bridge members.

Is anyone running a bridge with 50 vlan members?  Do you see any unicast 
flooding?  (I added "switchport block unicast" to the vlan egree points 
on the switches -- going to wifi antennas.)

My goal: set up dhcpd router with a big pool -- spanning all the vlans 
-- but keeping the vlan traffic separate (hence the PRIVATE on the 
bridge members).

Rudy