Cisco Cisco Packet Data Interworking Function (PDIF)
IKEv2 Error Codes and Notifications
▀ ePDG Subscriber Rules
▄ ePDG Administration Guide, StarOS Release 18
126
Value
Error Code
ePDG Support
36
INTERNAL_ADDRESS_FAILURE
The ePDG sends this code when the ePDG experiences a failure in address
assignment.
assignment.
37
FAILED_CP_REQUIRED
The ePDG sends this code when the CP payload (CFG_REQUEST) was
expected but not received.
expected but not received.
38
TS_UNACCEPTABLE
The ePDG sends this code when the TSi and/or TSr parameters contain IP
protocol values other than 0.
protocol values other than 0.
39
INVALID_SELECTORS
The ePDG does not send this code because the selector range is not checked
and ingress filtering is applied instead.
and ingress filtering is applied instead.
40
TEMPORARY_FAILURE
when it is under collision scenarios as specified in RFC 5996.
41
CHILD_SA_NOT_FOUND
when it is under collision scenarios as specified in RFC 5996.
The following tale lists the IKEv2 error codes expected by the ePDG from the WLAN UEs.
Table 26.
IKEv2 Error Codes Expected by the ePDG
Value
Error Code
ePDG Behavior Upon Receipt
1
UNSUPPORTED_CRITICAL_PAYLOAD The ePDG sends an INFORMATIONAL (Delete) message and deletes the
session information.
4
INVALID_IKE_SPI
The ePDG ignores the error message and maintain the state of existing SAs.
7
INVALID_SYNTAX
The ePDG sends an INFORMATIONAL (Delete) message and deletes the
session information.
session information.
9
INVALID_MESSAGE_ID
The ePDG deletes the session information without sending an
INFORMATIONAL (Delete) message.
INFORMATIONAL (Delete) message.
11
INVALID_SPI
When notified in an IKE_SA message, the ePDG sends an
INFORMATIONAL (Delete) message and deletes the session information.
When notified outside an IKE_SA message, the ePDG ignores the error
message and maintain the state for any existing SAs.
INFORMATIONAL (Delete) message and deletes the session information.
When notified outside an IKE_SA message, the ePDG ignores the error
message and maintain the state for any existing SAs.
39
INVALID_SELECTORS
The ePDG sends an INFORMATIONAL (Delete) message for the IKE SA
and deletes the session information.
and deletes the session information.
40
TEMPORARY_FAILURE
On receipt of temporary_failure - If ePDG receives this for a rekey initiated
by ePDG, ePDG shall retry rekey after some time.
by ePDG, ePDG shall retry rekey after some time.
41
CHILD_SA_NOT_FOUND
On receipt of CHILD_SA_NOT_FOUND - Epdg deletes the CHILDSA
existing in ePDG, based on SPI.
existing in ePDG, based on SPI.
The following table lists the notify status types defined in RFCs 4306 and 4739 that are supported by the ePDG.
Table 27. Notify Status Types Supported by the ePDG
Value
Notify Status Type