Downstream#show run int tu3
Building configuration...

Current configuration : 181 bytes
!
interface Tunnel3
 ip address 192.168.3.1 255.255.255.0
 keepalive 5 2
 tunnel source 60.49.215.10
 tunnel destination 203.189.20.18


HeadQuarters#show run int tu5
Building configuration...

Current configuration : 191 bytes
!
interface Tunnel5
 ip address 192.168.3.2 255.255.255.252
 keepalive 5 2
 tunnel source 203.189.20.18
 tunnel destination 60.49.215.10
end


Downstream#show int tu3
Tunnel3 is up, line protocol is down 
  Hardware is Tunnel
  Description: "Monitoring Internet Link"
  Internet address is 192.168.3.1/24
  MTU 1514 bytes, BW 9 Kbit, DLY 500000 usec, 
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation TUNNEL, loopback not set
  Keepalive set (5 sec), retries 2
  Tunnel source 60.49.215.10 (FastEthernet1), destination 203.189.20.18
  Tunnel protocol/transport GRE/IP
    Key disabled, sequencing disabled
    Checksumming of packets disabled
  Tunnel TTL 255
  Fast tunneling enabled
  Tunnel transmit bandwidth 8000 (kbps)
  Tunnel receive bandwidth 8000 (kbps)
  Last input never, output 00:00:00, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 1
  Queueing strategy: fifo
  Output queue: 0/0 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     25 packets output, 1200 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 output buffer failures, 0 output buffers swapped out


HeadQuarters#show int tu5
Tunnel5 is up, line protocol is down 
  Hardware is Tunnel
  Description: Internet monitoring for johorbaharu
  Internet address is 192.168.3.2/30
  MTU 1514 bytes, BW 9 Kbit, DLY 500000 usec, 
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation TUNNEL, loopback not set
  Keepalive set (5 sec), retries 2
  Tunnel source 203.189.20.18, destination 60.49.215.10
  Tunnel protocol/transport GRE/IP
    Key disabled, sequencing disabled
    Checksumming of packets disabled
  Tunnel TTL 255
  Fast tunneling enabled
  Tunnel transmit bandwidth 8000 (kbps)
  Tunnel receive bandwidth 8000 (kbps)
  Last input never, output 00:00:03, output hang nevershow 
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/0 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     1386 packets output, 66528 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 output buffer failures, 0 output buffers swapped out


Downstream#
000072: Feb  2 20:33:59.927 GMT: Tunnel3: sending keepalive, 203.189.20.18->60.49.215.10 (len=24 ttl=255), counter=88
000073: Feb  2 20:34:04.927 GMT: Tunnel3: sending keepalive, 203.189.20.18->60.49.215.10 (len=24 ttl=255), counter=89
000074: Feb  2 20:34:09.927 GMT: Tunnel3: sending keepalive, 203.189.20.18->60.49.215.10 (len=24 ttl=255), counter=90
000075: Feb  2 20:34:14.927 GMT: Tunnel3: sending keepalive, 203.189.20.18->60.49.215.10 (len=24 ttl=255), counter=91