From: nhatphuc (nhatphuc@gmail.com)
Date: Wed Jan 02 2008 - 09:41:37 ARST
HI Group,
I have a tunnel interface configured and tested successfully. After I reboot
all router, I can't ping tunnel interface address, if I delete the tunnel
int and create it again. Everything works well.
Have you ever experienced this ?
Thanks
Phuc
Below is my config:
===============BEFORE DELETING TUNNEL INTERFACE
=============ROUTER4 Config
Rack1R4#sh run int tun 0
Building configuration...
Current configuration : 141 bytes
!
interface Tunnel0
ip address 187.1.14.4 255.255.255.0
ip pim sparse-mode
tunnel source 187.1.134.4
tunnel destination 187.1.134.1
end
Rack1R4#sh ip int brief
Interface IP-Address OK? Method Status
Protocol
FastEthernet0/0 187.1.4.4 YES NVRAM up
up
FastEthernet0/1 unassigned YES NVRAM administratively down
down
Serial0/0/0 unassigned YES NVRAM up
up
Serial0/0/0.134 187.1.134.4 YES NVRAM up
up
Serial0/1/0 187.1.45.4 YES NVRAM up
up
Loopback0 150.1.4.4 YES NVRAM up
up
Tunnel0 187.1.14.4 YES NVRAM up
up
Tunnel14 unassigned YES NVRAM up
up
Tunnel46 unassigned YES NVRAM up
up
Rack1R4#ping 187.1.14.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 187.1.14.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
Rack1R4#p 187.1.134.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 187.1.134.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 112/112/116 ms
Rack1R4#ping 187.1.14.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 187.1.14.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
Rack1R4#ping 187.1.134.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 187.1.134.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 112/125/176 ms
Rack1R4#sh int tu 0
Tunnel0 is up, line protocol is up
Hardware is Tunnel
Internet address is 187.1.14.4/24
MTU 1514 bytes, BW 9 Kbit, DLY 500000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation TUNNEL, loopback not set
Keepalive not set
Tunnel source 187.1.134.4, destination 187.1.134.1
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: 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
51 packets output, 7302 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
=============ROUTER1 Config
Rack1R1#sh run int tun 0
Building configuration...
Current configuration : 141 bytes
!
interface Tunnel0
ip address 187.1.14.1 255.255.255.0
ip pim sparse-mode
tunnel source 187.1.134.1
tunnel destination 187.1.134.4
end
Rack1R1#sh ip int brief
Interface IP-Address OK? Method Status
Protocol
FastEthernet0/0 187.1.17.1 YES NVRAM up
up
FastEthernet0/1 unassigned YES NVRAM administratively down
down
Serial0/0/0 unassigned YES NVRAM up
up
Serial0/0/0.134 187.1.134.1 YES NVRAM up
up
Serial0/1/0 unassigned YES NVRAM administratively down
down
Loopback0 150.1.1.1 YES NVRAM up
up
Tunnel0 187.1.14.1 YES NVRAM up
up
Tunnel14 unassigned YES NVRAM up
up
Tunnel16 unassigned YES NVRAM up
up
Rack1R1#ping 187.1.14.4
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 187.1.14.4, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
Rack1R1#ping 187.1.134.4
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 187.1.134.4, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 112/113/116 ms
Rack1R1#sh int tun 0
Tunnel0 is up, line protocol is up
Hardware is Tunnel
Internet address is 187.1.14.1/24
MTU 1514 bytes, BW 9 Kbit, DLY 500000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation TUNNEL, loopback not set
Keepalive not set
Tunnel source 187.1.134.1, destination 187.1.134.4
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 00:00:26, output hang never
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
46 packets output, 6682 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
===============AFTER DELETING TUNNEL INTERFACE
Rack1R4#conf
Configuring from terminal, memory, or network [terminal]?
Enter configuration commands, one per line. End with CNTL/Z.
Rack1R4(config)#no int tun 0
Rack1R4(config)#int tun 0
*Jan 2 11:34:34.583: %LINEPROTO-5-UPDOWN: Line protocol on Interface
Tunnel0, changed state to down
Rack1R4(config-if)#ip address 187.1.14.4 255.255.255.0
Rack1R4(config-if)#tun source 187.1.134.4
Rack1R4(config-if)#tun des 187.1.134.1
*Jan 2 11:35:04.015: %LINEPROTO-5-UPDOWN: Line protocol on Interface
Tunnel0, changed state to up
Rack1R4(config-if)#ip pim sparse-
Rack1R4(config-if)#
*Jan 2 11:35:51.383: %PIM-5-NBRCHG: neighbor 187.1.14.1 UP on interface
Tunnel0
Rack1R4(config-if)#^Z
Rack1R4#ping 187.1.1
*Jan 2 11:36:05.971: %SYS-5-CONFIG_I: Configured from console by console
Rack1R4#ping 187.1.14.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 187.1.14.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 136/137/140 ms
Rack1R4#sh int tun 0
Tunnel0 is up, line protocol is up
Hardware is Tunnel
Internet address is 187.1.14.4/24
MTU 1514 bytes, BW 9 Kbit, DLY 500000 usec,
reliability 255/255, txload 28/255, rxload 28/255
Encapsulation TUNNEL, loopback not set
Keepalive not set
Tunnel source 187.1.134.4, destination 187.1.134.1
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 00:00:05, output 00:00:06, output hang never
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 1000 bits/sec, 1 packets/sec
5 minute output rate 1000 bits/sec, 1 packets/sec
17 packets input, 2266 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
17 packets output, 2424 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
Rack1R4#
=======================ROUTER1 CONFIG
Rack1R1#conf
Configuring from terminal, memory, or network [terminal]?
Enter configuration commands, one per line. End with CNTL/Z.
Rack1R1(config)#no int tun 0
Rack1R1(config)#int tun 0
Rack1R1(config-if)#ip a
*Jan 2 11:40:37.155: %LINEPROTO-5-UPDOWN: Line protocol on Interface
Tunnel0, changed state to down
Rack1R1(config-if)#ip add 187.1.14.1 255.255.255.0
Rack1R1(config-if)#tun so 187.1.134.1
Rack1R1(config-if)#tu des 187.1.134.4
Rack1R1(config-if)#ip pim spa
Rack1R1(config-if)#ip pim sparse-mo
*Jan 2 11:41:12.379: %LINEPROTO-5-UPDOWN: Line protocol on Interface
Tunnel0, changed state to up
Rack1R1(config-if)#ip pim sparse-mo
Rack1R1(config-if)#
*Jan 2 11:41:14.787: %PIM-5-NBRCHG: neighbor 187.1.14.4 UP on interface
Tunnel0
Rack1R1(config-if)#^Z
Rack1R1#ping 187.1.14.4
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 187.1.14.4, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 136/138/140 ms
Rack1R1#
Rack1R1#sh int tun 0
Tunnel0 is up, line protocol is up
Hardware is Tunnel
Internet address is 187.1.14.1/24
MTU 1514 bytes, BW 9 Kbit, DLY 500000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation TUNNEL, loopback not set
Keepalive not set
Tunnel source 187.1.134.1, destination 187.1.134.4
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 00:00:07, output 00:00:07, output hang never
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
51 packets input, 10120 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
36 packets output, 5898 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
This archive was generated by hypermail 2.1.4 : Fri Feb 01 2008 - 10:37:57 ARST