| Microsoft Internet Security and Acceleration Server 2004 SDK |
The following are the run-time error codes, defined in Wspfwerr.h, that may be returned by the Microsoft Firewall service.
| Symbolic name | Message ID | Message text |
|---|---|---|
| FWX_E_TERMINATING | 0xC0040001 | The object is shutting down. |
| FWX_E_INVALID_ARG | 0xC0040002 | The argument is invalid. |
| FWX_E_ALREADY_IN_BLOCKING_OP | 0xC0040003 | The blocking operation is already started. |
| FWX_E_NOT_IN_BLOCKING_OP | 0xC0040004 | There is no blocking operation to be ended. |
| FWX_E_FILTER_NOT_REGISTERED | 0xC0040005 | The filter is not registered. |
| FWX_E_ALREADY_EXISTS | 0x800700B7 | The object cannot be created because an object with the same name already exists. |
| FWX_E_BUFFERFULL | 0xC0040007 | Not all the data was appended to the buffer object because the buffer was full. |
| FWX_E_ALREADY_EMULATED | 0xC0040009 | The connection is already emulated by another filter. |
| FWX_E_BAD_CONTEXT | 0xC004000A | The method was not called while handling any of the supported events. |
| FWX_E_NOT_SUPPORTED | 0xC004000B | Modifying this property is not allowed for this session. |
| FWX_E_NOT_AUTHENTICATED | 0xC004000C | The action cannot be performed because the session is not authenticated. |
| FWX_E_POLICY_RULES_DENIED | 0xC004000D | The policy rules do not allow the user request. |
| FWX_E_MIME_NEEDED | 0xC004000E | The MIME type is required. |
| FWX_E_MUST_USE_DS | 0xC004000F | |
| FWX_E_NOT_EMULATED | 0xC0040010 | The connection is not emulated. |
| FWX_E_IS_BUSY | 0xC0040011 | |
| FWX_E_NETWORK_RULES_DENIED | 0xC0040012 | |
| FWX_E_FRAGMENT_PACKET_DROPPED | 0xC0040013 | |
| FWX_E_FWE_SPOOFING_PACKET_DROPPED | 0xC0040014 | |
| FWX_E_TCPIPDROP_PACKET_DROPPED | 0xC0040015 | |
| FWX_E_NO_BACKLOG_PACKET_DROPPED | 0xC0040016 | |
| FWX_E_TCP_NOT_SYN_PACKET_DROPPED | 0xC0040017 | |
| FWX_E_BAD_LENGTH_PACKET_DROPPED | 0xC0040018 | |
| FWX_E_PING_OF_DEATH_PACKET_DROPPED | 0xC0040019 | |
| FWX_E_OUT_OF_BAND_PACKET_DROPPED | 0xC004001A | |
| FWX_E_IP_HALF_SCAN_PACKET_DROPPED | 0xC004001B | |
| FWX_E_LAND_ATTACK_DROPPED | 0xC004001C | |
| FWX_E_UDP_BOMB_DROPPED | 0xC004001D | |
| FWX_E_FULLDENY_DROPPED | 0xC004001E | |
| FWX_E_IPOPTIONS_DROPPED | 0xC004001F | |
| FWX_E_UNCOMPLETED_CONNECTION_REQUEST | 0xC0040020 | An attempt to log on to the VPN server was rejected during the authentication phase because the authentication data was not received in a timely manner. The client session was disconnected. |
| FWX_E_CONNECTION_REQUEST_REJECTED | 0xC0040021 | An attempt to log on to the VPN server was rejected during the authentication phase. The client session was disconnected. |
| FWX_E_VALIDATE_QUARANTINE_FAILED | 0xC0040022 | The VPN quarantine settings could not be validated. The client session was disconnected. |
| FWX_E_VPN_CONNECTIONS_LIMIT_EXCEEDED | 0xC0040023 | The VPN client connection limit was exceeded. The client session was disconnected. |
| FWX_E_OUT_OF_RESOURCES | 0xC0040024 | |
| FWX_E_BROADCAST_PACKET_DROPPED | 0xC0040025 | |
| FWX_E_UNKNOWN_ADAPTER_DROPPED | 0xC0040026 | |
| FWX_E_ICMP_ERROR_PACKET_DROPPED | 0xC0040027 | |
| FWX_E_INVALID_PROTCOL_PACKET_DROPPED | 0xC0040028 | |
| FWX_E_PORT_ZERO_PACKET_DROPPED | 0xC0040029 | |
| FWX_E_SYN_ATTACK_START | 0xC004002A | ISA Server detected a SYN attack. |
| FWX_E_SYN_ATTACK_END | 0xC004002B | ISA Server is no longer experiencing a SYN attack. |
| FWX_E_INVALID_DHCP_OFFER | 0xC004002C | |
| FWX_E_UNREACHABLE_ADDRESS | 0xC004002D | |
| FWX_E_ADDRESS_NOT_ALLOWED | 0xC004002E | |
| FWX_E_IPSEC_NO_ROUTE_DROPPED | 0xC004002F | |
| FWX_E_OUTBOUND_PATH_THROUGH_DROPPED | 0xC0040030 | |
| FWX_E_BAD_TCP_CHECKSUM_DROPPED | 0xC0040031 | |
| FWX_E_VPN_USER_MAPPING_FAILED | 0xC0040032 | An attempt to map a VPN client to a Windows user failed. The client session was disconnected. |
| FWX_E_RULE_QUOTA_EXCEEDED_DROPPED | 0xC0040033 | A connection was rejected because the maximum number of connections that can be created for a rule during one second was exceeded. |