BGP over GRE

R6#sh ip bgp 44.4.4.4
BGP routing table entry for 44.4.4.4/32, version 140
Paths: (1 available, best #1, table default)
  Not advertised to any peer
  Refresh Epoch 1
  505 303 201
    5.5.5.5 from 5.5.5.5 (55.5.5.5)
      Origin IGP, localpref 100, valid, external, best
      rx pathid: 0, tx pathid: 0x0
R6#

R6#sh ip route 44.4.4.4
Routing entry for 44.4.4.4/32
  Known via "bgp 1.301", distance 20, metric 0
  Tag 505, type external
  Last update from 5.5.5.5 00:01:23 ago
  Routing Descriptor Blocks:
  * 5.5.5.5, from 5.5.5.5, 00:01:23 ago
      Route metric is 0, traffic share count is 1
      AS Hops 3
      Route tag 505
      MPLS label: none

R6#ping 44.4.4.4 so 66.6.6.6
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 44.4.4.4, timeout is 2 seconds:
Packet sent with a source address of 66.6.6.6
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 160/222/324 ms
R6#