Hi Rene,
First thanks a lot for all that great work you are doing :-).
I have a drama going on right now and I could not isolate the root cause of the problem.
Symptoms:
on my Hub the GRE Tunnel interface stat UP/Down - I am using cisco appliances running Version 12.2(8r).
Can you please help ?
-----
Router_1#show ip inter br
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 unassigned YES TFTP up down
Serial0/0 unassigned YES NVRAM administratively down down
FastEthernet0/1 192.168.123.1 YES manual up up
Serial0/1 unassigned YES NVRAM administratively down down
Loopback0 1.1.1.1 YES NVRAM up up
Tunnel0 172.16.123.1 YES manual up down
-
Router_1#show run inter tu0
Building configuration...
Current configuration : 223 bytes
!
interface Tunnel0
ip address 172.16.123.1 255.255.255.0
no ip redirects
ip nhrp authentication DMVPN
ip nhrp map multicast dynamic
ip nhrp network-id 1
tunnel source FastEthernet0/1
tunnel mode gre multipoint
end
-
Router_1#show run inter fa0/1
Building configuration...
Current configuration : 135 bytes
!
interface FastEthernet0/1
description Conection to ISP Switch
ip address 192.168.123.1 255.255.255.0
duplex auto
speed auto
end
-
Router_1#show inter tu0
Tunnel0 is up, line protocol is down
Hardware is Tunnel
Internet address is 172.16.123.1/24
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 192.168.123.1 (FastEthernet0/1), destination UNKNOWN
Tunnel protocol/transport multi-GRE/IP, key disabled, sequencing disabled
Checksumming of packets disabled, fast tunneling enabled
Last input 00:55:03, output never, 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
2 packets input, 210 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
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
Thank you in advance.