Switch GS2220 Series Release Note

Zyxel_Chris · November 2022

Zyxel Switch GS2220 Series
Release Note
October, 2022

(Click Hyperlink to download the firmware directly)

Zyxel GS2220-10　　　　 - 4.70(ABRO.6)C0

Zyxel GS2220-10HP　　　 - 4.70(ABRP.6)C0

Zyxel GS2220-28　　　 - 4.70(ABRQ.6)C0

Zyxel GS2220-28HP -4.70(ABRR.6)C0

Zyxel GS2220-50 -4.70(ABRS.6)C0

Zyxel GS2220-50HP -4.70(AbRT.6)C0

CLD=Cloud mode, STD=Standalone mode

No.	New Feature and Enhancements	CLD	STD
1.	Wide Range Detection is integrated into Force-802.3at mode.		V

CLD=Cloud mode, STD=Standalone mode

No.	Bug fix	CLD	STD
1.	[CVE-2022-0778] Vulnerability protection to avoid DoS condition by OpenSSL infinite loop issue.	V	V
2.	[Vulnerability] Vulnerability protection for unauthenticated Denial-of-Service (DoS) by RpAnalyzeHttpRequest.	V	V
3.	[DHCP] DHCP client is not sending decline packet when assigned IP from DHCP server conflicted with other device.	V	V
4.	[ITS: 210501222] Web GUI login page may encounter display error or problem to display proper login page when Switch is under concurrent TCP ping task.	V	V
5.	[ITS: 210900900] Nebula CC may display incorrect ports' TX/RX data.	V	-
6.	[ITS: 210701300] Switch supports IGMPv3 packet for source-type of “block source” parameter for Fast-leave.	V	V
7.	[ITS: 220400686]Networked AV mode wizard allow user to set different VLAN interface with same IP address.	-	V
8.	Support zyDateTimeServerIpAddress (1.3.6.1.4.1.890.1.15.3.82.1.2) MIB.	-	V
9.	[ITS: 220500960] Disabling 802.1x or guest VLAN functionality on other ports will cause the authenticated clients to disconnect and require re-authentication.	V	V
10.	[ITS: 220700265] Firmware upgrade fails when the policy rule is bound to multiple classifiers.	-	V
11.	[ITS: 220701015] Default setting switch might answer ICMP request for unknown IP in the different subnet.	-	V

Please refer to the Download Link for more details.