Release Notes PN 93000699_E1 Digi Connect WAN 3G 82001532_E1 EOS May 20, 2009 INTRODUCTION This is a production release of firmware for the Digi Connect WAN 3G. The Digi Connect WAN 3G is a hardened, upgradeable 3G cellular router that provides secure high speed wireless connectivity to remote sites and devices. It can be used for primary wireless broadband network connectivity to equipment at remote locations, as well as for a backup to existing landline communications. The Digi Connect WAN 3G is ideal for use where wired networks (e.g., leased line/frame relay, ISDN, DSL) are not feasible, or where alternative network connections are required. SUPPORTED PRODUCTS Digi Connect WAN 3G SUPPORTED CELLULAR MODEMS Within the cellular product family, Digi has continued to add support for cellular modules as vendors make updates and improvements to support the latest chipsets and cellular technology. As new modules come on the market and older ones go obsolete, Digi is committed to supporting the products we have sold and continue to sell to our customers. The level of support that we are able to provide falls into one of the following categories: 1) FULL SUPPORT These modules are shipping in Digi products. An essential part of our product testing is to make sure these modules are compatible and function properly. Operational and performance issues with these modules that are found by customers will be verified, scoped and scheduled to be fixed in an upcoming firmware release. Sierra Wireless: MC5725, p2005001,20224 [Sep 21 2006 15:43:22],, VID: PID: MC5727, Modem Revision: p2410701,51240 [Nov 08 2007] BOOT: SWI6800V2_PP.01.07.01 2007/11/08 APPL: SWI6800V2_PP.01.07.01 2007/11/08 MC8775, H1_1_9_3MCAP C:/WS/FW/H1_1_9_3MCAP/MSM6280/SRC 2007/12/12 MC8790, Revision ID: K1_0_2_8AP C:/WS/FW/K1_0_2_8AP/MSM6290/SRC 2008/09/17 Ericsson: F3507g, Revision ID: R1D06 Option Wireless: GTM382, Revision IDs: 1.4.6.0Hd (Date: Oct 1 2008, Time: 11:50:07) 1.8.0.0Hd (Date: Jan 14 2009, Time: 14:46:50) 1.9.1.0Hd (Date: Mar 26 2009, Time: 09:10:10) 2) PARTIAL SUPPORT These modules had shipped in Digi products in the past but are no longer actively supported by the module vendor. Firmware testing no longer includes these modules, however every attempt is made to maintain support as features and improvements are implemented. Issues with these modules that are found by customers will be verified, scoped and either scheduled to be fixed or a newer, supported module offered as an upgrade option. Sierra Wireless: MC5720, MC8755 3) LIMITED SUPPORT These modules have never shipped in Digi products and have never been part of firmware testing and verification efforts. These modules may be similar to full/partially supported modules by the same vendor and may even have been informally tested and shown to work in Digi products. Operational and performance issues with these modules that are found by customers will be evaluated and scoped to be fixed on a business case basis. Sierra Wireless: MC8780, MC8781, MC8775V, MC5725V, MC8755V, MC8765, MC8785V 4) NOT SUPPORTED These modules have never shipped in Digi products and are known to be incompatible. Sierra Wireless: EM3420, EM5625 ENHANCEMENTS Add support for new cellular modules: - Ericsson F3507g - Option Wireless GTM382 Improve event log messages for the DHCP Server feature. (29931) Improve a timing condition to reduce by up to five seconds the time it takes before the first mobile PPP connection is established when the Digi device boots. Eliminate some timing dependencies when mobile band and carrier selection options are used with GSM modems. Eliminate a condition that could result in a false indication that the mobile call has dropped when establishing a PPP connection. This avoids unnecessary modem resets and decreases the time that the mobile PPP connection is unavailable. Hide the Dynamic DNS feature on versions of Digi devices that do not support cellular modems. This feature applies only to cellular devices. Add the ability to enable/disable incoming dynamic VPN configurations, and to display all incoming dynamic VPN tunnels. (28912) BUG FIXES Fix a bug that could result in a USB stall condition when accessing some USB devices. Part of this fix eliminates a possible USB resource leak that could be recovered only by rebooting the Digi device. Clear some SIM-related information between modem resets on Digi devices that support two SIMs, to avoid posible confusion that can result when switching between SIMs. The correct information is read from the SIM following the modem reset. KNOWN ISSUES Problems have been encountered with some Linksys VPN appliance models when using different Diffie-Hellman group settings for phase 1 and phase 2. To work around this issue and successfully establish the VPN tunnel, use the same Diffie-Hellman group for both phase 1 and phase 2 settings. DOCUMENTATION ERRATA None. ADDITIONAL INFORMATION It is recommended that you perform a backup of your device's settings prior to upgrading your firmware. If you should need to revert back to a previous version of firmware, this will ensure that you will be able to restore your device to its previous settings in the event that some settings are not restored properly after downgrading the firmware. To backup your device settings, follow this simple procedure: 1) Open the web user interface and navigate to the "Administration" section and select "Backup/Restore". 2) Click the "Backup" button and select the location to where you want to save your backup file. To restore: 1) Navigate to the same section within the web UI. 2) Click the "Browse" button to select the backup file you saved in the previous steps. 3) Click the "Restore" button to upload the configuration settings contained in your backup file. On initial boot of this device, it will generate some encryption key material: an RSA key for SSL/TLS operations, and a DSA key for SSH operations. This process can take as long as 40 minutes to complete. Until the corresponding key is generated, the device will be unable to initiate or accept that type of encrypted connection. It will also report itself as 100% busy but, since key generation takes place at a low priority, the device will still function normally. On subsequent reboots, the device will use its existing keys and will not need to generate another unless a reset to factory defaults is done, which will cause a new key to be generated on the next reboot. HISTORY 82001532_E1 (2.8.4.13) - May 20, 2009 See ENHANCEMENTS and BUG FIXES information above. 82001532_E (2.8.4.7) - March 31, 2009 ENHANCEMENTS: CELLULAR ENHANCEMENTS: Add support for new cellular modules: - Sierra Wireless MC5727 - Sierra Wireless MC8790 Add support for new Sprint provisioning method (OMA-DM). Add support for on-board GPS receivers on some modules (MC5727, MC8790). Add configuration capabilities in CLI, web UI and RCI. Add capability to report ICCID of the SIM cards. Improve mobile band and carrier selection for GSM modules. Add warning and informational text to web UI, carrier scan wizard and web help. For carrier selection, indicate discovery of 2G and 3G carriers when displayed in the carrier scan wizard. (25271, 28118, 29251) Add information to the event log and the UI (CLI, web and RCI) that indicates the user's choice of manual or automatic cellular band and carrier selection. (24942) Improve the CDMA module provisioning wizard: - Enable PPP on successful provisioning. (29078) - If network provisioning fails, offer a choice of retrying network provisioning, instead of manual provisioning. Choice of manual is available only at the start of the provisioning wizard. Add support to SNMP for mobile link up/down traps. (25003) GENERAL/OTHER ENHANCEMENTS: Add support for higher memory platforms (32MB RAM and 16MB Flash). Add configuration web page for MEI in all MEI-capable products. Update "display techsupport" to include new and additional commands. Add the current date/time to the device status display (CLI and web UI), in addition to the uptime value for the device. For event logging, add the device uptime to end-of-log display line (both CLI and web UI), if the timestamp display for logging is other than the uptime (such as date/time). Add simple CLI to manipulate the time source management settings. See CLI command "set clocksource". Use NMEA 0183 default settings for GPS profile. These settings are: 4800,8,N,1,no flow control. (29439) BUG FIXES: CELLULAR BUG FIXES: Fix a panic in the mobile carrier scan thread in the web UI. (26476) Fix a bug in which PPP statistics may display as negative values in "display pppstats". (related to 22844) Correct a bug in which e-mail alarms and snmp traps are not working for a mobile configuration change event. (26810) Fix a problem in which GSM manual carrier selection would always force that connection to have 2G service, even if 3G service is available and supported by the cell modem. (28118) Fix a high CPU utilization issue that occurs while PPP is bringing up a connection. (29771) GENERAL/OTHER BUG FIXES: Implement RFC-specified validation for a hostname, per the requirements for DHCP option 12. The RFCs consulted include 952, 1035, 1123 and 2132. The maximum length of the hostname is increased to 127, increased from 31. Support for a FQDN also has been implemented. Web UI help has been updated to describe a valid hostname construction. (27588) Strip carriage returns from TFTP loaded Python scripts. (26971) Add a very basic stat call for FAT FS, so we can report st_size. (22785) Add a check to the DHCP server to accept datagrams only if received on the interface being served by the DHCP server. Affects only devices with multiple LAN interfaces Fix a bug that occurs when restoring a public key: the value is set to the key plus additional bytes, resulting in a corrupt key. (27780) Add option value ranges to CLI "udpserial" command help. (29034) Fix a bug in which the event log includes one or more messages that specify the wrong (misleading) system time value when the device boots. Affects devices with a real time clock. (29804) If a public key has been enabled for SSH, allow authentication based on the key regardless of the password setting. Dynamically generate a list of accepted authentication methods based on the configuration of the device. (27834) 82001532_D1 (2.8.1.13) - December 11, 2008 ENHANCEMENTS: None. BUG FIXES: Upgrading the Connect WAN 3G to the D revision firmware from an earlier revision could result in a permanent hang or panic condition. The problem could occur if VPN settings were configured using the B1 revision or earlier firmware, and if those settings were still configured in the Connect WAN 3G. Note that only a full revert to factory default settings would have removed those VPN settings. The problem occurs during an implicit conversion of the VPN settings from an older format to their newer format required by the D revision and later firmware. (28851) 82001532_D (2.8.1.8) - October 21, 2008 ENHANCEMENTS: Improve configuration settings implementation to use less memory, better support customized defaults and more effectively manage NVRAM. Add dynamic web page generation support for native web server from Python. Add support for Connectware Manager Web Services. Add support for file system access from Connectware Manager. Add dual SIM support for use with GSM cellular modules. Add native GPS support with Geofencing application. Add VPN "Responder Only" feature. Add automatic failover from one network interface to another as the default gateway using customer-configurable rules. Failover-capable interfaces include cellular and Ethernet. Allow the system time to be set from the Cellular System Time. The real time clock can be set by this source as well. Support a Customizable Dialserve Initialization String. Split apart support for the Web Server (HTTP) service and Secure Web Server (HTTPS) service so they are managed independently of one another. Change mobile PPP interface to be always "mobile0" rather than a set of "pppX" interfaces where X varies among products. Add an on-board Primary Roaming List (PRL) update mechanism for Sierra Wireless CDMA/EVDO cellular modules. Add display of mobile network MCC and MNC numeric values in addition to associated names for Sierra Wireless cellular modems. (26910) Add a conditional second cellular signal strength bar graph to web UI, and a new "Service Mode" item. Add CLI counterparts for these (display mobile). These changes applies to products equipped with Sierra Wireless MC5720/25 modules, for the purpose of reporting signal strength for both 1xRTT service and EV-DO service. The reporting for other cellular modules is unaffected by these changes. Also, show the correct signal strength for the current technology in use for the mobile connection (2G or 3G). On products that have bi-color mobile Signal Strength and/or Link LEDs, correctly set and update the color as follows: - Indicate 3G service via a green LED. - Indicate 2G service via a yellow LED. Since the in-use service may change during the life of the mobile PPP connection, the color is updated if/as the service changes. Add options to set the DNS priorities and gateway priorities lists from the command-line. (27324) Added these options to "set network": gwpriority=(comma-separated interface name list) dnspriority=(comma-separated priority list) Event logging enhancements. - For "uptime", display days+hh:mm:ss versus a time in seconds. - In CLI, support user-selectable time display format. - Automatically determine appropriate time display format according to time source availability and use in a given product. Add start-up event logging in the "system" facility of these items: - product name and ID - model name (if different than the product name) - firmware (EOS) version - boot version - POST version - manufacturing VPD version (build tag) - hardware strapping value The above information is also shown by the "display device" command. Add service provider support for Bell Mobility. BUG FIXES: Fix memory leak related to RCI requests. Increase the general event log maximum message size to avoid message truncation. (24640) 82001532_C1 (2.7.2.11) - July 17, 2008 ENHANCEMENTS: Improve the DHCP client capability so it persists in attempting to acquire IP configuration information if the DHCP client is enabled in the device configuration settings, and the DHCP client fails to acquire the IP configuration. This could occur if no DHCP server was available when the device booted, or if the Ethernet cable was disconnected at that time. Improve the detail reported in "display techsupport" for the network settings. Specifically, use "show network globalsettings if=*" to report everything available ("show network" is less complete). BUG FIXES: An engineering change in some versions of supported Sierra Wireless 3G PCI Express modules (8775, 8775V, 8780, 8781) was incompatible with the implemented existing reset logic for all other PCIe based modules, causing the Sierra Wireless modules to come up in "Low-Power Mode." A change was made to the firmware to not drive the PCIe reset pin for Sierra Wireless modules, correcting the issue. Fix a DCD detection problem for Siemens USB modems. (26059) Fix e-mail alarm failures. (26107, 25684, 25810) Correct a time rollover bug (wraparound to zero) in the Event Log. Eliminate a memory leak on the VPN identity key/certificate web page. (26255) Correct a bug in which two of the options of the "set vpn global" CLI command, didn't work as the CLI help stated. Specifically, the options "suppress_phase1_lifetimes" and "suppress_delete_sa_for_pfs" are documented to accept "on" and "off" as values. However, the command was expecting "yes" and "no" instead. The command has been modified to accept "on" and "off" as documented, and "yes" and "no" are still accepted as valid option values. (26607) Fix VPN tunnel settings backup/restore issues. (26648, 25010) o Default settings could be backed up but not restored for some options (such as "host address" of 0.0.0.0). o The manual tunnel outbound authentication algorithm "SHA1" could not be restored. It could be set correctly by use of CLI command and web page settings. Fix a problem in which packets would have a zero Ethernet MAC address for up to four minutes when running in IP Pass-through mode. (26760) 82001532_C (2.7.2.6) - March 28, 2008 ENHANCEMENTS: Update the IP Network Stack to benefit from many improvements and fixes from the network stack vendor. Add support for NAT-T (NAT traversal) VPN tunneling. Add support for Simple Certificate Enrollment Protocol (SCEP) for X.509 certificates. Add support for Virtual Router Redundancy Protocol (VRRP) per RFC 3768. Add support for DNS Proxy, optionally integrated with the DHCP Server. Add support for Python scripting feature. Add support for Device-Initiated RealPort. Add support to the Mobile Configuration web page (Advanced Settings) for user-requested PRL updates. This enhancement applies to the MC5720 and MC5725 air interfaces. Add DMZ support to the NAT feature. Enhance the Event Logging feature to permit the user to clear the log on demand, thereby removing all log entries. This is supported in the web UI (Event Logging page) and the CLI ("display logging action=clear"). Add two new options to the CLI command "display logging": head=(lines) tail=(lines) where "(lines)" is a number of log entries to display. The "head" option displays lines from the start of the event log (the oldest entries), and the "tail" option displays lines from the end of the event log (the most recent entries). (25091) Add support to permit the publication of private IP addresses to the DynDNS service. (25403) Add support for Dynamic DNS service updates when the Digi device is operating in IP Pass-through mode. (25129) Add "show ddns" to the list of commands run by "display techsupport". (25725) Reduce runtime memory usage, including both executable code and data. The firmware image size also is somewhat reduced. This results in more available memory in the Digi device, which can help improve performance during intervals of high memory demand operations. Add support for new air interface cards: o Sierra Wireless MC8780 (GSM/GPRS/UMTS/HSDPA/HSUPA) - Succeeds MC8775 (and MC8755). - Supports European frequency. - Adds HSUPA support. o Sierra Wireless MC8781 (GSM/GPRS/UMTS/HSDPA/HSUPA) - Succeeds MC8775 (and MC8765). - Supports North American frequency. - Adds HSUPA support. Improve web UI in numerous areas for usability and feature additions: o Mobile service provisioning. o Mobile service configuration and authentication. o Advanced network configuration: ability to prioritize the ordering of DNS servers and default gateway selection. Add support for CDMA technology selection (i.e., 1xRTT / EVDO / Automatic) for the Sierra Wireless MC5720 and MC5725 modules. Add support for carrier/band/service class (i.e., 2G/3G) selection for the following Sierra Wireless modules: MC8755, MC8765, MC8775, MC8780 and MC8781. The following previous KNOWN ISSUES from earlier releases have been addressed and are no longer issues for the Digi Connect WAN 3G: o On some IPSec VPNs, SA lifetime is not negotiated correctly. To work around this issue, configure the SA lifetime on the Digi Connect WAN 3G to be less than that configured on the VPN concentrator. o For IPSec VPN tunnels using AES encryption, multiple key lengths (128-, 192- and 256-bit) are supported for ISAKMP/IKE phase 1 encryption proposals. For ISAKMP/IKE phase 2 proposals, currently only 256-bit keys are supported for AES encryption. Add the "display dnsserver" CLI command to report the DNS servers that are configured in the Digi Connect WAN 3G. Add VPN-related CLI options for the "display" command" o ikesa - IKE SA table o ikespd - IKE SPD table o ipsecspd - IPSec SPD table Improve the information provided by the "display techsupport" and "display netdevice" CLI commands. Enable automatic ("sticky") response for UDP Sockets feature to the last client when no UDP Sockets "destinations" are defined. (CR 23531) Enhance NAT trace for improved troubleshooting detail. Revise the signal strength reporting ranges for consistency across the Digi cellular product line and with both service provider and modem manufacturer recommendations. Update service provider support for AT&T. BUG FIXES: Fix a problem in the "set vpn tunnel" CLI. The CLI help incorrectly specifies an option "public_interface" that is actually "interface". The valid interface names shown also may be incorrect. The help has been corrected. (25131) Fix a memory leak in the Python feature. Some of the semaphores created by Python were not being released to the system when they were no longer needed. (25288) Fix a problem in which NAT-T (VPN) failed because a mobile provider network changed the UDP source port for NAT-T, and our version of IKE did not handle that condition properly. (25489) Fix a problem in which possible "garbage" characters may be collected and stored as part of the "Current Network" mobile status item. This information is reported to the user in CLI, web UI and XML sent to the Connectware Manager server. The "garbage" characters were problematic for the Connectware Manager in particular. This fix affects devices that are equipped with the MC87x5 air interface modules, when the "Current Network" value is less than eight characters in length. (24868) Remove the VPN "interfaces" (vpn0, etc.) from the list of valid interfaces for configuring a static route. These are not true network interfaces in Digi's network stack. They are not suitable for static routes, since only IPSEC policies may be used for the purpose of routing packets through tunnels. These VPN pseudo-interfaces are meaningful only for the VPN "Virtual Host" mode, which was included in 82001532_A. Fix a problem for the MC5720 and MC5725 modules, in which the illuminated signal strength LEDs differ from the number of "bars" shown in the web UI (Mobile System Information page) or CLI ("display mobile" command output). (23706) In certain situations, the Sierra Wireless MC5720/MC5725 would indicate that a call had been made, but would not assert the carrier signal on the data virtual UART. This would result in a valid call being dropped prematurely. This has been remedied. Improve the reliability of information reported in the mobile status, including network- and modem-specific status, phone number (when available), and SIM status for GSM. Fixes for mobile service provider support and configuration: o Username and password are no longer required fields for some AT&T (Cingular) Orange service accounts. (23161) o When authentication is disabled: (22466) - Clear the CHAP ID, CHAP key, PAP ID, and PAP password. o Provide a default initialization string for a CDMA Custom Provider. (21890) o Change "European Provider" to "European/EMEA Provider". (19833) Eliminate a possible condition in which a system resource could be lost (leaked) when a cell modem is reset between PPP connections. Only a Digi device reboot would reclaim the resource. Fix an initialization problem with GSM data-only mode configuration in which the mode could remain incorrectly set if a different cellular provider selection is used. Specifically, if data-only mode is enabled, it could not be correctly disabled in the cellular modem. 82001532_B1 (2.6.3.8) - November 29, 2007 ENHANCEMENTS: None. BUG FIXES: Enable CTS Errata fix to address quicker hardware flow control issues. May see double characters if this is not enabled. 82001532_B (2.6.3.6) - November 8, 2007 ENHANCEMENTS: None. BUG FIXES: Fix issue with stdio holding onto pointers to invalid data. Add SIM PIN retry mechanism to account for slow module access to SIM. Fix missing MEI serial port initialization. 82001532_A1 (2.6.3.5) - October 16, 2007 ENHANCEMENTS: Add support for displaying SIM status as text in addition to the numerical status value. Enable the watchdog code to allow Python to maintain the watchdog so that if a python script that should be working with the watchdog fails, the unit is reset. Added "onexit" parameter to the "set python" cil command. Add support for CLI command access through Python scripts. Improve the ability of SureLink feature to do a DNS lookup when no DNS names were retrieved from the network (use static DNS names instead). BUG FIXES: Fix Cellular Data Only mode initialization where a different cellular provider was selected. Fix a bug where the zigbee socket layer would cause a "hang". Fix a bug where USB Transport Descriptors were leaking from the Sierra Wireless driver. Fix a bug where the flash filesystem could cause the unit to reference a memory structure that had been freed which resulted in heap corruption. 82001532_A (2.6.3.3) - September 27, 2007 Initial release.