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mGre via UMTS

Kruemel2oo2
Level 1
Level 1

Hello,

I hope somebody can help me.  I want a MultiGre tunnel via UMTS.

Here are my Configs.

mHub:

interface Tunnel1

  ip address 192.168.1.254 255.255.255.0

  no ip redirects

  ip nhrp map multicast dynamic

  ip nhrp network-id 1

  ip nhrp holdtime 600

  ip nhrp registration timeout 30

  no ip split-horizon eigrp 10

  tunnel source GigabitEthernet0/1

  tunnel mode gre multipoint

  tunnel key 12345

!

interface GigabitEthernet0/1

ip address  X.X.X.X S.S.S.S

  duplex auto

  speed auto

!

Spoke:

interface Tunnel1

  ip address 192.168.1.76 255.255.255.0

  ip nhrp map multicast X.X.X.X

  ip nhrp map 192.168.1.254 X.X.X.X

  ip nhrp network-id 1

  ip nhrp holdtime 600

  ip nhrp nhs 192.168.1.254

  ip nhrp registration timeout 30

  tunnel source Cellular0/1/0

  tunnel destination X.X.X.X

  tunnel key 12345

!

interface Cellular0/1/0

  ip address negotiated

  ip nat outside

  ip virtual-reassembly in

  encapsulation ppp

  dialer in-band

  dialer string gsm

  dialer-group 1

  async mode interactive

  ppp authentication pap callin

  ppp chap hostname xxxxx

  ppp chap password 0 xx

  ppp ipcp dns request

!

sh int tun 1 //Spoke

Tunnel1 is up, line protocol is up

   Hardware is Tunnel

   Internet address is 192.168.1.76/24

   MTU 17912 bytes, BW 100 Kbit/sec, DLY 50000 usec,

      reliability 255/255, txload 1/255, rxload 1/255

   Encapsulation TUNNEL, loopback not set

   Keepalive not set

   Tunnel source Y.Y. Y.Y (Cellular0/1/0), destination X.X.X.X

    Tunnel Subblocks:

       src-track:

          Tunnel76 source tracking subblock associated with Cellular0/1/0

           Set of tunnels with source Cellular0/1/0, 1 member (includes iterators), on interface <OK>

   Tunnel protocol/transport GRE/IP

     Key 0x7B, sequencing disabled

     Checksumming of packets disabled

   Tunnel TTL 255, Fast tunneling enabled

   Tunnel transport MTU 1472 bytes

   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 IP multicasts)

      0 runts, 0 giants, 0 throttles

      0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

      278 packets output, 33440 bytes, 0 underruns

      0 output errors, 0 collisions, 0 interface resets

      0 unknown protocol drops

      0 output buffer failures, 0 output buffers swapped out

There are output packets but no input packets.

What could be the reason?

Jörg

1 Reply 1

Kruemel2oo2
Level 1
Level 1

If I debug the tunnel (spoke) I get these information:

*Nov  8 12:38:29.662: Tunnel1: GRE/IP encapsulated [Cellular_IP]->[Tunnel_Destination] (linktype=74, len=120)

*Nov  8 12:38:29.662: Tunnel1 count tx, adding 0 encap bytes

Maybe it helps.

Jörg

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