DMVPN in Cisco 3945 output drop in tunnel interface
I configured DMVPN in Cisco 3945 and checked the tunnel interface. I found out that I have output drop. How can I remove that output drop? I already set the ip mtu to 1400.
CORE-ROUTER#sh int tunnel 20 Tunnel20 is up, line protocol is up Hardware is Tunnel Description: <Voice Tunneling to HO> Internet address is 172.15.X.X./X MTU 17878 bytes, BW 1024 Kbit/sec, DLY 50000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation TUNNEL, loopback not set Keepalive not set Tunnel source 10.15.X.X (GigabitEthernet0/1) Tunnel Subblocks: src-track: Tunnel20 source tracking subblock associated with GigabitEthernet0/1 Set of tunnels with source GigabitEthernet0/1, 1 member (includes iterators), on interface <OK> Tunnel protocol/transport multi-GRE/IP Key 0x3EA, sequencing disabled Checksumming of packets disabled Tunnel TTL 255, Fast tunneling enabled Tunnel transport MTU 1438 bytes Tunnel transmit bandwidth 8000 (kbps) Tunnel receive bandwidth 8000 (kbps) Tunnel protection via IPSec (profile "tunnel_protection_profile_2") Last input 00:00:01, output never, output hang never --More-- Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 7487 Queueing strategy: fifo Output queue: 0/0 (size/max) 30 second input rate 0 bits/sec, 0 packets/sec 30 second output rate 0 bits/sec, 0 packets/sec 48007 packets input, 4315254 bytes, 0 no buffer Received 0 broadcasts (0 IP multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 42804 packets output, 4638561 bytes, 0 underruns 0 output errors, 0 collisions, 0 interface resets 0 unknown protocol drops 0 output buffer failures, 0 output buffers swapped out
interface Tunnel20 description <Bayantel Voice tunneling> bandwidth 30720 ip address 172.15.X.X 255.255.255.128 no ip redirects ip mtu 1400 no ip next-hop-self eigrp 20 no ip split-horizon eigrp 20 ip nhrp authentication 0r1x@IT ip nhrp map multicast dynamic ip nhrp network-id 1002 ip nhrp holdtime 300 ip tcp adjust-mss 1360 tunnel source FastEthernet0/0/1 tunnel mode gre multipoint tunnel key 1002 tunnel protection ipsec profile tunnel_protection_profile_2 shared
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We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
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