KerOS firmware v5.7.2 (February 2023)

Changes from v5.5.4

Fix security vulnerabilities on KerOS API
Trigger autorestart of GWMP sockets when uplink message are timed out
Define pools instead of servers for NTP synchronization
Properly stop and restart LoRaWAN frames reception when applying a different channel plan

Advanced LoRaWAN frames filtering (normal and reverse) with the support of :
- Multiple ranges filters for NetID, JoinEUI and DevEUI
- Proprietary frames
Support default generic APN configuration (no MCC/MNC needed), by default set to BICS APN in provisioning file
Limited support of Wirnet iZeptoCell Cellular, see restrictions for more details

Make ZTP more robust against backhaul disconnections
Set network monitoring enabled by default
Prevent disabling cellular backhaul on WebUI for new product iZeptoCell-Cellular
Set a fallback DNS server configuration by default
Automatically adjust TCP packets (fragmentation) depending on backhaul MTU
Add option --minimal/-m for get_logs script to get a smaller logs archive
Support of Japan version of WAN modem installed in iFemtocell-evo 923 and iStation 923

Some issues with the Wi-Fi interface (instabilities, no fallback…) on Wirnet iFemtoCell
When upgrading from KerOS firmware 4.x, all trustzone secrets are lost
When upgrading from KerOS FW 4.x, a hardware reset is necessary for FW 5.x burner to correctly detect USB
Update status for an update from KerOS FW 5.1.x, FW 5.2.x or FW 5.3.x is in error, but the update is working fine
No more support of GSM dongles

Compatible with Wirnet™ i-series gateways (Wirnet iBTS, Wirnet iFemtoCell, Wirnet iStation, Wirnet iFemtoCell-evolution, Wirnet iZeptoCell Ethernet, Wirnet iZeptoCell Cellular).

Compatible with Wirnet™ i-series gateways secured with Kerlink Production fuses or without any fuses flashed.
Regular update (keros.ipk) is incompatible with firmware older than v5.x

To upgrade the system from KerOS version 4.3.3 to KerOS version 5.x the use of a liveburner is MANDATORY. Two possibilities are available:
- Upgrade with a custom liveburner. It allows to keep some elements like gateway configuration. To use a custom liveburner, please refer to the dedicated page: Major version upgrade with a custom liveburner.
- Upgrade with a regular liveburner (erasing the whole partition to reinstall the firmware)

The firmware is released in two formats: KerOS and Liveburner.

KerOS : Update the Firmware
To update the firmware from v5.x, the regular update procedure can be used. See system upgrade page.

Liveburner : Reset the Firmware of the product

KerOS IPK:keros_5.7.2_klkgw-signed.ipk md5: dbc5eaf5f7cbdae2691f74d98a259a58
Liveburner IPK 5.7.2: liveburner_5.7.2_klkgw-signed.ipk md5: 197c9c8f14952b1bf8339ad4c5863c2f
Liveburner IPK 4.3.3-2: liveburner_4.3.3-2_klkgw-signed.ipk md5: 12CFEFB8D4630A34AA90C77E6C73A193
Custom liveburner IPK: custom-liveburner_5.7.2_klkgw-signed.ipk md5: 455a15b7b10dae4171a2e8b1b04fdf79
Update liveburner package: update_liveburner_package-v5.5.4.tar.gz md5: b34113c633b829de2422e297ccdb1f53
64-bit toolchain: poky-glibc-x86_64-keros-toolchain-klkgw-5.7.2.sh md5: 25044a8909fa95749ad2eb8bcf52e00d