SMPP DATA_SM stops kannel from receiving further messages

Hi,

I have Kannel connected to a LogicaCMG SMSC via SMPP 3.4. SMSC sends a
DATA_SM PDU and Kannel responds with a GENERIC_NACK PDU. At this point, the
SMSC stops sending any further queued messages and Kannel is stuck :(

I am using a receiver only connection to the SMSC with no transmit
connections from Kannel.

Here is a dump from the relavent section of the log file:

2004-07-07 20:02:31 [4069] [7] DEBUG: Optional parameter tag (0x000e)
2004-07-07 20:02:31 [4069] [7] DEBUG: Optional parameter length read as 1
2004-07-07 20:02:31 [4069] [7] DEBUG: Optional parameter tag (0x0424)
2004-07-07 20:02:31 [4069] [7] DEBUG: Optional parameter length read as 2
2004-07-07 20:02:31 [4069] [7] DEBUG: Optional parameter tag (0x000d)
2004-07-07 20:02:31 [4069] [7] DEBUG: Optional parameter length read as 1
2004-07-07 20:02:31 [4069] [7] DEBUG: Optional parameter tag (0x0426)
2004-07-07 20:02:31 [4069] [7] DEBUG: Optional parameter length read as 1
2004-07-07 20:02:31 [4069] [7] DEBUG: SMPP[xxxxxxxxxxxxxxx]: Got PDU:
2004-07-07 20:02:31 [4069] [7] DEBUG: SMPP PDU 0x81d16e0 dump:
2004-07-07 20:02:31 [4069] [7] DEBUG:   type_name: data_sm
2004-07-07 20:02:31 [4069] [7] DEBUG:   command_id: 259 = 0x00000103
2004-07-07 20:02:31 [4069] [7] DEBUG:   command_status: 0 = 0x00000000
2004-07-07 20:02:31 [4069] [7] DEBUG:   sequence_number: 1 = 0x00000001
2004-07-07 20:02:31 [4069] [7] DEBUG:   service_type: NULL
2004-07-07 20:02:31 [4069] [7] DEBUG:   source_addr_ton: 2 = 0x00000002
2004-07-07 20:02:31 [4069] [7] DEBUG:   source_addr_npi: 1 = 0x00000001
2004-07-07 20:02:31 [4069] [7] DEBUG:   source_addr: "xxxxxxxxxx"
2004-07-07 20:02:31 [4069] [7] DEBUG:   dest_addr_ton: 0 = 0x00000000
2004-07-07 20:02:31 [4069] [7] DEBUG:   dest_addr_npi: 1 = 0x00000001
2004-07-07 20:02:31 [4069] [7] DEBUG:   destination_addr: "xxx"
2004-07-07 20:02:31 [4069] [7] DEBUG:   esm_class: 0 = 0x00000000
2004-07-07 20:02:31 [4069] [7] DEBUG:   registered_delivery: 17 = 0x00000011
2004-07-07 20:02:31 [4069] [7] DEBUG:   data_coding: 0 = 0x00000000
2004-07-07 20:02:31 [4069] [7] DEBUG:   source_addr_subunit: 2 = 0x00000002
2004-07-07 20:02:31 [4069] [7] DEBUG:   source_network_type: 1 = 0x00000001
2004-07-07 20:02:31 [4069] [7] DEBUG:   more_messages_to_send: 1 =
0x00000001
2004-07-07 20:02:31 [4069] [7] DEBUG:   message_payload: "99"
2004-07-07 20:02:31 [4069] [7] DEBUG: SMPP PDU dump ends.
2004-07-07 20:02:31 [4069] [7] ERROR: SMPP[xxxxxxxxxxxxxxx]: Unknown PDU
type 0x00000103, ignored.
2004-07-07 20:02:31 [4069] [7] DEBUG: SMPP[xxxxxxxxxxxxxxx]: Sending PDU:
2004-07-07 20:02:31 [4069] [7] DEBUG: SMPP PDU 0x81d20d8 dump:
2004-07-07 20:02:31 [4069] [7] DEBUG:   type_name: generic_nack
2004-07-07 20:02:31 [4069] [7] DEBUG:   command_id: 2147483648 = 0x80000000
2004-07-07 20:02:31 [4069] [7] DEBUG:   command_status: 3 = 0x00000003
2004-07-07 20:02:31 [4069] [7] DEBUG:   sequence_number: 1 = 0x00000001
2004-07-07 20:02:31 [4069] [7] DEBUG: SMPP PDU dump ends.
2004-07-07 20:02:38 [4069] [7] DEBUG: SMPP[xxxxxxxxxxxxxxx]: Sending enquire
link:
2004-07-07 20:02:38 [4069] [7] DEBUG: SMPP PDU 0x81d16a0 dump:
2004-07-07 20:02:38 [4069] [7] DEBUG:   type_name: enquire_link
2004-07-07 20:02:38 [4069] [7] DEBUG:   command_id: 21 = 0x00000015
2004-07-07 20:02:38 [4069] [7] DEBUG:   command_status: 0 = 0x00000000
2004-07-07 20:02:38 [4069] [7] DEBUG:   sequence_number: 7 = 0x00000007
2004-07-07 20:02:38 [4069] [7] DEBUG: SMPP PDU dump ends.
2004-07-07 20:02:38 [4069] [7] DEBUG: SMPP[xxxxxxxxxxxxxxx]: Got PDU:
2004-07-07 20:02:38 [4069] [7] DEBUG: SMPP PDU 0x81d16a0 dump:
2004-07-07 20:02:38 [4069] [7] DEBUG:   type_name: enquire_link_resp
2004-07-07 20:02:38 [4069] [7] DEBUG:   command_id: 2147483669 = 0x80000015
2004-07-07 20:02:38 [4069] [7] DEBUG:   command_status: 0 = 0x00000000
2004-07-07 20:02:38 [4069] [7] DEBUG:   sequence_number: 7 = 0x00000007
2004-07-07 20:02:38 [4069] [7] DEBUG: SMPP PDU dump ends.


Ambar Roy

One97 Communications (P) Ltd.
701-702, Arunachal Building,
19 Barakhamba Road,
New Delhi - 110 001

98100-94479
[email protected]