Protocol Error 111
Contents |
CLASS Cause 1 Unallocated (unassigned) number - This cause indicates that the called party cannot be reached because, although the called party number is in a valid format, it is not currently allocated (assigned). Cause 2 No route to specified transit network - This cause indicates isdn disconnect cause codes that the equipment sending this cause has received a request to route the call through a protocol error unspecified 111 reason particular transit network which it does not recognize. The equipment sending this cause does not recognize the transit network either because the transit network does
Ss7 Release Cause Codes
not exist or because that particular transit network, while it does exist, does not serve the equipment that is sending this cause. This cause is supported on a network dependent basis. Cause 3 No route to destination - This cause indicates
Q850 Cause Codes
that the called party cannot be reached because the network through which the call has been routed does not serve the destination desired. This cause is supported on a network-dependent basis. Cause 4 Send special information tone - This cause indicates that the called party cannot be reached for reasons that are of long term nature and that the special information tone should be returned to the calling party. Cause 5 Misdialed trunk prefix - No procedures specified for US networks. Cause sip cause codes 8 Preemption - This cause indicates that the call is being preempted. Cause 9 Preemption - Circuit reserved for reuse. This cause indicates that the call is being preempted and the circuit is reserved for reuse by the preempting exchange. Cause 16 Normal call clearing - This cause indicates that the call is being cleared because one of the users involved in the call has requested that the call be cleared. Under normal situations, the source of this cause is not the network. Cause 17 User busy - This cause is used to indicate that the called party is unable to accept another call because the user busy condition has been encountered. This cause value may be generated by the called user or by the network. In the case of user determined user busy, it is noted that the user equipment is compatible with the call. Cause 18 No user responding - This cause is used when a called party does not respond to a call establishment message with either an alerting or connect indication within the prescribed period of time allocated. Cause 19 No answer from user (user alerted) - This value is used when the called party has been alerted but does not respond with a connect indication within a prescribed period of time. Note - This cause is not necessarily generated by Q.93l procedures but may be generated by internal network timers. Cause 20 Subscriber absent - This cause value
Network + Certification Security+ Certification Cisco Catalyst 1900 Password Recovery 2900 Catalyst Password Recovery 1600 Password Recovery 2500 Password Recovery Cisco Command Summary Cisco Frame Relay Cisco ISDN Cisco ISDN NAT Cisco/Juniper Commands Cisco Switch Cheat Sheet
Cause Code 41 Temporary Failure
Cisco T1 Guide Console Plug Wiring Diagram Dial-on-Demand Routing (DDR) Cisco EIGRP Cisco IGRP 5w56 service Loopback Testing Cisco Default Administratitve Distances Cisco Pix Firewall Show Interface Cisco T1 ISDN Backup VLAN Trunking Protocol IP Routing Overview cause code technologies TCP/IP and TCPDump Binary Conversion Tool Number Conversion Quiz Bridging How Network Traffic Flows What is IP V6? Subnet Calculator IP Subnet Chart Using Traceroute PC IRQ Boot Error Beep Codes How to Check DirectX https://www.dialogic.com/webhelp/MSP1010/10.2.3/WebHelp/MSP_DG/ISUP/Cause_Codes.htm Version Delete Old Files using delold Export/Import Local Groups Front Side Bus How to view all network shares Important Lotus Notes Files Windows Networking with netsh Outlook Command Line Flags What is PCI Express? RAID PC Card Slot Types Microsoft Net Commands Protocols ARP Border Gateway Protocol Frame Relay ISDN The Lesser Known RFC's Routing Information Protocol The X21 Protocol ATM DHCP DNS Ethernet FTP Commands Test Sendmail SASL Authentication HTTP http://networking.ringofsaturn.com/Routers/isdncausecodes.php ICMP IMAP Protocol IP Protocol NAT Network Time Protocol OSPF Ping POP3 Port Numbers PPP Seven Layer Model SMDS SMTP SMTP Reply Codes SMTP Authentication SNMP SONET TCP UDP Well Known Ports X.25 Routers InterJet Bench Config Netopia ISDN Setup Netopia NAT Setup Null Modem Cable Pinouts Portmaster Zyxel ISDN Setup Adtran TSU Setup Ascend NAT Configuration Ascend ISDN Setup Telco Circuit Index Flowpoint DSL ISDN Cause Codes Juniper Show Interface Commands Netopia xDSL Setup Redback Usage Guide Router Lights SQL Delete Rows not in Another Table DB Permissions in Microsoft SQL How to Fix Orphaned SQL Users How to Format Datet/Time SQL Linked Servers Repair a Crashed MySQL Table MySQL Performance Tuning Checking SQL Activity Microsoft SQL Reindexing Script Find a Stored Procedure by String SQL Security Secure Interaction Design Wireless (In)Security Analysis of Authentication Types What is Cyber-Terrorism? Dialup DNS Zones Secure Wireless Network Telco Digital Subscriber Line Cellular Signal Strength Telco Circuit Index Fiber Optic Connectors LAPD Protocol (N-ISDN) Mobile Phone Email Addresses Common Phone Key Pads RJ-45 Cables SONET Telco Basics Java DTMF Tone Generator Tools Browser Sniffer PHP Web Based Diff Web-based Dig Free Online Monitoring Sites IP Calculator Web Based NSLookup Probe Remote Host Online Quizzes Raid Calculator Server BTU Generation Server Power Usage Calcu
Wiki Network Create a new issue Commits Closed Open Issue #8 opened 2015-08-23 12:38:12 UTC by Csaba Sipos@csaba.sipos MAC failure (EMM status #111, protocol error unspecified) Failure https://gitlab.eurecom.fr/oai/openair-cn/issues/8 occures during the calculation of the MAC (Message Authentication Code), while processing https://wiki.freeswitch.org/wiki/Hangup_Causes an integrity protected message coming from the eNodeb. It seems there are multipe reasons behind this. The following contains all the information we know so far, and will be updated in the feature. 1. Findings by Shaun Ying: The UE remembers its previous context and sends a Identity Response message with a cause code MAC value that is integrity protected. However, since OAI EPC is freshly started and it does not remember the previous security context for the same UE, it expects messages without integrity protection during the attach procedure. Since OAI EPC always compares the MAC values, we see the MAC failure error as quoted above. The quick fix is to compare MAC values only when EPC's own MAC protocol error 111 is not 0. You may change Line 317 in openair-cn/NAS/COMMON/API/NETWORK/nas_message.c from: if (mac != header->message_authentication_code) { to if ((mac != 0) && (mac != header->message_authentication_code)) { 2. Findings by David Rupprecht: I think I found the encoding error for the s1ap layer. openair-cn/NAS/MME/EMM/SAP/emm_as.c at line 1556 need to be changed to ...= htons(0x10000 >> emm_security_context->selected_ ....); Then the AS layer uses the same algorithms than the NAS layer, which should not be that way. And there is still a forced selection in rrc_eNB_S1AP.c line 235, that EEA0 is used for AS encryption. That is also the reason, why the error was just occurring for the integrity algorithm. The patch is attached. Altough both of the above patches are improving the situation, they are not solving this issue completely. For exmaple with the two patches applied, the Attach procudure is now successfully happens, the MAC failures can still occur eg. during a Detach procedure (or during other NAS realted signalling). Failure occures during the calculation of the MAC (Message Authentication Code), while processing an integrity protected message coming from the eNodeb. It seems there are multipe reasons behind this. The following contains all the information we kno
to SIP Code Table The following table describes the mappings implemented by FreeSwitch (see mod_sofia.c:hangup_cause_to_sip). Unspecified causes codes (no value in the "SIP Equiv." column in the table) are translated to SIP "480 Temporarily Unavailable" by FreeSwitch. The table also contains non-standard codes above 127 (ISUP and ISDN only specify codes up to 127). These codes are used internally to FreeSwitch to indicate other states. (These codes do not map directly to SIP error codes either.) The complete list of SWITCH_CAUSE_ codes (switch_call_cause_t) is defined in include/switch_types.h. See ITU-T Q.850 standard for a formal definition of standard telephony disconnect cause codes for ISDN, and the mapping between Q.931 (DSSS1) and ISUP codes. See ITU Q.1912.5 for a formal definition of interoperability between ISUP and SIP, especially section 6.11 which specifies the "Reason" header and gives the mapping of the disconnect cause codes between ISUP and SIP. Another set of mappings are the Q.SIG / SIP mappings from RFC 4497 section 8.4.1. (Q.SIG is one of many extensions to Q.931 used for PBX-to-PBX signalling on private links.) In practice it appears that FreeSwitch implements neither Q.1912.5 nor RFC4497. ITU-T Q.850 Code SIP Equiv. Enumeration Cause Description 0 UNSPECIFIED Unspecified. No other cause codes applicable. This is usually given by the router when none of the other codes apply. This cause usually occurs in the same type of situations as cause 1, cause 88, and cause 100. 1 404 UNALLOCATED_NUMBER Unallocated (unassigned) number [Q.850 value 1] This cause indicates that the called party cannot be reached because, although the called party number is in a valid format, it is not currently allocated (assigned). 2 404 NO_ROUTE_TRANSIT_NET No route to specified transit network (national use) [Q.850] This cause indicates that the equipment sending this cause has received a request to route the call through a particular transit network, which it does not recognize. The equipment sending this cause does not recognize the transit network either because the transit network does not exist or be