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[HELP] Tunnel is Reseting

R2#sh int tu1
Tunnel1 is reset, line protocol is down 
  Hardware is Tunnel
  Description: Tunnel1
  Internet address is 10.10.10.15/24
  MTU 1514 bytes, BW 1000 Kbit, DLY 10000 usec, 
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation TUNNEL, loopback not set
  Keepalive not set
  Tunnel source xx.xx.xx.xx (Serial0/0), destination UNKNOWN
  Tunnel protocol/transport multi-GRE/IP
    Key 0x186A1, sequencing disabled
    Checksumming of packets disabled
  Tunnel TTL 255
  Fast tunneling enabled
  Tunnel transmit bandwidth 8000 (kbps)
  Tunnel receive bandwidth 8000 (kbps)
  Tunnel protection via IPSec (profile "vpnprof")
  Last input never, output 01:13:04, 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
     311 packets output, 40997 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 output buffer failures, 0 output buffers swapped out
 
sh run int tu1
Building configuration...
 
Current configuration : 664 bytes
!
interface Tunnel1
 description Tunnel1
 bandwidth 1000
 ip address 10.10.10.15 255.255.255.0
 no ip redirects
 ip mtu 1416
 ip flow egress
 ip authentication mode eigrp 100 md5
 ip authentication key-chain eigrp 100 Lab12
 ip nhrp authentication Lab#!
 ip nhrp map multicast xx.xx.xx.xx
 ip nhrp map 10.10.10.1 xx.xx.xx.xx
 ip nhrp network-id 100001
 ip nhrp holdtime 360
 ip nhrp nhs 10.10.11.1
 ip nhrp shortcut
 ip nhrp redirect
 ip route-cache flow
 ip tcp adjust-mss 1360
 delay 1000
 tunnel source serial0/0
 tunnel mode gre multipoint
 tunnel key 100001
 tunnel protection ipsec profile vpnprof shared
end
 

Any log files from the router buffer or syslog server?

At a guess, the remote end is down /unreachable.

Regards

I guess I had to initiate some traffic before it went back up.

Thanks