NebulaFlex Switch GS1350 Series - V4.90 Patch 1 Firmware Release
Zyxel Employee
Zyxel Switch GS1350 Series Release Note
March 2024
Firmware Version on all models
(Click Hyperlink to download the firmware directly)
Zyxel GS1350-6HP - V4.90(ABPI.1)C0
Zyxel GS1350-12HP - V4.90(ABPJ.1)C0
Zyxel GS1350-18HP - V4.90(ABPK.1)C0
Zyxel GS1350-26HP - V4.90(ABPL.1)C0
New Feature and Enhancements
1. [Standalone] Supports auto STP path cost which will determine path cost by the port's current link speed.
2. [Standalone] Supports “Account Security” option on WEB GUI to encrypt admin/user account passwords and options to display user/AAA/SNMP credentials
3. [Standalone] NCC discovery adds reminder to save configurations.
4. [Standalone] Extend RADIUS server support range from IPv4 to IPv6.
5. [Standalone] Enhance security by forcing users to change the password after first login.
6. [Standalone] Enhance Auto PD recovery with a ping test button to verify connectivity.
7. [Standalone] Enable Nebula Control Center Discovery by default setting.
8. [Standalone] Add option 82 profile name in DHCP relay VLAN setting table
9. [Standalone] Add note on cable diagnostics to inform the operating limits for local webgui.
10. [Standalone][Nebula] The year of Time Range page starts with current system time.
11. [Standalone][Nebula] The admin account can be changed, providing flexibility and security to the network management system.
12. [Standalone][Nebula] Support user uses “setup.zyxel.com” directly to access local web GUI.
13. [Standalone][Nebula] Support public key authentication for SSH.
14. [Standalone][Nebula] Support logs to indicate the cause of CPU high.
15. [Standalone][Nebula] Strengthen user security with the encryption of Radius shared secret.
16. [Standalone][Nebula] Strengthen security for network management with built-in notification in case of abnormal login attempt.
17. [Standalone][Nebula] Renovate Web GUI layout for better usability of Switch management.
18. [Standalone][Nebula] Remote management offers support for IPv6.
19. [Standalone][Nebula] Log information for IP conflict between Switch and gateway both obtain the same IP address.
20. [Standalone][Nebula] Intuitive Cloud connection status with help message.
21. [Standalone][Nebula] Improve Dashboard's port link speed color display to enhance user experience and intuitiveness.
22. [Standalone][Nebula] The login page will automatically redirect from HTTP to HTTPS to enhance network security.
23. [Standalone][Nebula] Enhance security by supporting the ECDSA algorithm in SSH.
24. [Standalone][Nebula] Disable Telnet feature by default setting
25. [Standalone][Nebula] Allow SSH and CLI commands to be combined and display the command result directly.
26. [Standalone][Nebula] Adding the Port Setup link when clicking switch port icon on the dashboard.
27. [Nebula] Unlock local Web GUI for cloud mode.
28. [Nebula] Unlock CLI to support full configuration in cloud mode.
29. [Nebula] The interval time of Loop guard err-disable recovery can be configured now.
30. [Nebula] Support Hardware monitor (CPU/Memory/Temperature).
31. [Nebula] Support DHCP relay and added DHCP option 82 for DHCP relay.
32. [Nebula] Support auto configuration recovery on Nebula to prevent loss connection with NCC by misconfiguration.
33. [Nebula] Provide the Nebula password reminder on login page of web GUI.
34. [Nebula] Nebula Switch supports SSH connection to access command line for advanced features.
Bug Fix
| Bug fix | C | S |
| 1. [eITS#230800182] Fixed open source packages related vulnerabilities. [CVE-2016-0799][CVE-2016-2177] [CVE-2016-2182][CVE-2016-2842] [CVE-2016-0797][CVE-2016-2105] [CVE-2016-2106][CVE-2016-2109] [CVE-2021-23840][CVE-2021-3712] [CVE-2016-6306][CVE-2017-3735] [CVE-2017-3737][CVE-2018-0739] [CVE-2019-1547][CVE-2021-23841] [CVE-2016-0701][CVE-2019-1563] | V | V |
| 2. Fixed time range not work in v4.90 patch 0. | - | V |
| 3. [eITS#231201249] Fixed configure DHCPv6 client may cause switch crash | - | V |
| 4. [eITS#240200888] Switch crashes because the length of assigned IPv6 address is too long | - | V |
| 5. [eITS#220900092] Fixed OpenSSH related vulnerabilities. [CVE-2010-5107][CVE- 2015-5600][CVE-2016-6515]. | V | V |
| 6. [eITS#221101240] Fix recording syslog may cause memory leak. | V | V |
| 7. [eITS#221101132] After restoring config via SFTP may cause fail due to syntax error. | V | V |
| 8. [eITS#221201201] Getting logging information that contains special characters causes switch hang. | V | V |
| 9. [eITS#230301330] Fixed failing to import certificate while the file size is over 5k. | - | V |
| 10. [eITS#230400140] Fixed switch crashed issues that is caused by Nessus version 10.5.1 to scan SSH. | V | V |
| 11. [eITS#230500677] Fixed timer unexpected goes slowly after lots of STP topology change occur. | V | V |
| 12. [eITS#230500705][eITS#230901020] Switch sometime disconnect with NCC when DNS requery find server IP has changed. | V | - |
| 13. [eITS#230700521] Fix crash issue which V receiving an unexpected format DHCP V packet when device enable DHCP snooping. | V | - |
| 14. [eITS#230801140] Fix the crash when enable IPv6 and receiving an IPv6 NA packet. | - | V |
| 15. [eITS#231001905] After switch crash, switch cannot successfully reboot. | V | V |
| 16. [eITS#221200596] Fixed the issue where the switch fails to process NTP packets, causing incorrect timing and not being able to show device status on NCC. | V | - |
Please refer to the Download Link for more details.
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