Cisco Cisco Packet Data Gateway (PDG)
ePDG Support
Error Code
Value
The ePDG sends this code when the CP
payload (CFG_REQUEST) was expected
but not received.
payload (CFG_REQUEST) was expected
but not received.
FAILED_CP_REQUIRED
37
The ePDG sends this code when the TSi
and/or TSr parameters contain IP protocol
values other than 0.
and/or TSr parameters contain IP protocol
values other than 0.
TS_UNACCEPTABLE
38
The ePDG does not send this code because
the selector range is not checked and ingress
filtering is applied instead.
the selector range is not checked and ingress
filtering is applied instead.
INVALID_SELECTORS
39
when it is under collision scenarios as
specified in RFC 5996.
specified in RFC 5996.
TEMPORARY_FAILURE
40
when it is under collision scenarios as
specified in RFC 5996.
specified in RFC 5996.
CHILD_SA_NOT_FOUND
41
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
ePDG Behavior Upon Receipt
Error Code
Value
The ePDG sends an INFORMATIONAL
(Delete) message and deletes the session
information.
(Delete) message and deletes the session
information.
UNSUPPORTED_CRITICAL_PAYLOAD
1
The ePDG ignores the error message and
maintain the state of existing SAs.
maintain the state of existing SAs.
INVALID_IKE_SPI
4
The ePDG sends an INFORMATIONAL
(Delete) message and deletes the session
information.
(Delete) message and deletes the session
information.
INVALID_SYNTAX
7
The ePDG deletes the session information
without sending an INFORMATIONAL
(Delete) message.
without sending an INFORMATIONAL
(Delete) message.
INVALID_MESSAGE_ID
9
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.
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.
INVALID_SPI
11
ePDG Administration Guide, StarOS Release 19
121
IKEv2 Error Codes and Notifications