get db stream:
****** 77835.0: <Self/self> packet received [44]******
  ipid = 34090(852a), @02855794
flow_self_vector2: send pack with current vid =0, enc_size:0
  processing packet through normal path.
  packet passed sanity check.
  self:192.168.0.1/25900->172.18.1.1/1024,1(8/0)<Root>
  no session found
  created new session from self  7911
  existing vector list 4-27700b4.
  processing packet from self
  flow_first_install_session======>
  ifp2 ethernet0/2, out_ifp N/A, flag 02002600, tunnel 40000008, rc 1
  outgoing wing prepared, ready
  flow got session.
  flow session id 7911
  skip ttl adjust for packet from self.
  post addr xlation: 192.168.0.1->172.18.1.1.
  skipping pre-frag
  going into tunnel 40000008.
  flow_encrypt: pipeline.
chip info: PIO. Tunnel id 00000008
(vn2)  doing ESP encryption and size =48
--- more ---
ipsec encrypt prepare engine done
ipsec encrypt set engine done
ipsec encrypt engine released
  SA lifesize_cur left -1888
ipsec encrypt done
        put packet(35d9500) into flush queue.
****** 77835.0: <Trust/ethernet0/4.4> packet received [60]******
  ipid = 2033(07f1), @033574b4
  packet passed sanity check.
  ethernet0/4.4:192.168.0.2/13059->172.18.1.1/768,1(8/0)<Root>
  no session found
  flow_first_sanity_check: in <ethernet0/4.4>, out <N/A>
  chose interface ethernet0/4.4 as incoming nat if.
  flow_first_routing: in <ethernet0/4.4>, out <N/A>
  search route to (ethernet0/4.4, 192.168.0.2->172.18.1.1) in vr trust-vr for
 vsd-0/flag-0/ifp-null
  [ Dest] 23.route 172.18.1.1->172.18.1.1, to tunnel.1
  routed (x_dst_ip 172.18.1.1) from ethernet0/4.4 (ethernet0/4.4 in 0) to tunn
el.1
  policy search from zone 2-> zone 1
 policy_flow_search  policy search nat_crt from zone 2-> zone 1
  RPC Mapping Table search returned 0 matched service(s) for (vsys Root, ip 10.1
51.64.16, port 5977, proto 1)
  No SW RPC rule match, search HW rule
  Permitted by policy 73
  dip id = 4, 192.168.0.2/13059->172.18.2.2/1874
## 2011-07-19 12:42:21 : NHTB entry search not found: vpn none tif tunnel.1 next
hop 172.18.1.1
  choose interface ethernet0/2 as outgoing phy if
  no loop on ifp ethernet0/2.
  session application type 0, name None, nas_id 0, timeout 60sec
  service lookup identified service 0.
  flow_first_final_check: in <ethernet0/4.4>, out <ethernet0/2>
  existing vector list 5-6bf83cc.
  Session (id:7792) created for first pak 5
  flow_first_install_session======>
## 2011-07-19 12:42:21 : NHTB entry search not found: vpn none tif tunnel.1 next
hop 172.18.1.1
  route to 172.18.1.1
  going into tunnel.
  ifp2 tunnel.1, out_ifp tunnel.1, flag 10002800, tunnel 40000008, rc 1
  outgoing wing prepared, ready
  handle cleartext reverse route
  search route to (tunnel.1, 172.18.1.1->192.168.0.2) in vr trust-vr for vsd-
0/flag-3000/ifp-ethernet0/4.4
  [ Dest] 15.route 192.168.0.2->192.168.0.2, to ethernet0/4.4
  route to 192.168.0.2
  arp entry found for 192.168.0.2
  ifp2 ethernet0/4.4, out_ifp ethernet0/4.4, flag 00800805, tunnel ffffffff, rc
1
  flow got session.
  flow session id 7792
  post addr xlation: 172.18.2.2->172.18.1.1.
  going into tunnel 40000008.
  flow_encrypt: pipeline.
chip info: PIO. Tunnel id 00000008
(vn2)  doing ESP encryption and size =64
ipsec encrypt prepare engine done
ipsec encrypt set engine done
ipsec encrypt engine released