4Patch Release Note

PCR: 02122

Module: FIREWALL

Network affecting: No

A fatal error sometimes occurred if a TCP session originating on the public side of the firewall sent packets before the session was established with the host on the private side of the firewall. This issue has been resolved.

PCR: 02128

Module: FIREWALL

Network affecting: No

Some FTP packets handled by the firewall were forwarded with incorrect sequence numbers, causing FTP sessions to fail. This issue has been resolved.

PCR: 02150

Module: CORE, SNMP

Network affecting: No

When passing 64-bit counters in an SNMP packet, only the lower 32 bits were passed. Now the full 64 bits of the counter will be returned if all are required.

PCR: 02158

Module: FIREWALL

Network affecting: No

When a TCP RST/ACK was received by a firewall interface, the packet that was passed to the other side of the firewall lost the ACK flag, and had an incorrect ACK number. This issue has been resolved.

PCR 02161

Module: IPG

Network affecting: No

The IP Filter SIZE parameter was not being applied correctly. This issue has been resolved.

PCR 02162

Module: IPG

Network affecting: No

The SET IP FILTER command would not update the SIZE parameter correctly. This issue has been resolved.

PCR 02172

Module: IPG

Network affecting: No

The TOS field in IP packets was not being processed by IP POLICY filters with an identifier greater than 7. This issue has been resolved.

PCR: 02174

Module: FIREWALL

Network affecting: No

A feature has been added that makes pings pass from the source IP address of the public interface to the IP address on the private interface in the firewall.

PCR: 02195

Module: SWI

Network affecting: No

If a port on a Rapier 48 or Rapier 48 i went down, some associated entries were not promptly removed from the forwarding, Layer 3 and default IP tables. This issue has been resolved.

PCR: 02198 Module: DHCP

Network affecting: Yes

This PCR includes the following enhancements:

•A new command, SET DHCP EXTENDID allows for multiple DHCP clients, and handling of arbitrary client IDs on the server.

•Static DHCP entries now return to the correct state when timing out.

•DHCP entry hashes now have memory protection to prevent fatal errors.

•DHCP client now retransmits XID correctly.

Patch 86222-21 for Software Release 2.2.2 C613-10319-00 REV T

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Allied Telesis 86222-21 manual PCR Module CORE, Snmp Network affecting No, PCR 02198 Module Dhcp Network affecting Yes
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86222-21 specifications

Allied Telesis 86222-21 is a versatile and robust network switch designed for a variety of applications across different industries. This device is engineered to deliver high-performance connectivity, making it an ideal choice for both enterprise environments and smaller businesses looking to enhance their network infrastructure.

One of the standout features of the Allied Telesis 86222-21 is its support for advanced Layer 2 switching capabilities. This allows for efficient data transfer within local area networks (LANs) by enabling the management of data packets based on MAC addresses. The device is equipped with multiple Gigabit Ethernet ports, promoting fast and reliable connections for numerous devices and reducing latency in data transmission.

In a world increasingly dependent on cloud services and virtualization, the 86222-21 is designed to accommodate the growing need for bandwidth. It supports Power over Ethernet (PoE), which simplifies the installation of networked devices like IP cameras and wireless access points by providing power through the Ethernet cable, eliminating the need for separate power supplies. This not only streamlines device management but also enhances flexibility in network design.

Security is a paramount concern for any modern network, and this model addresses those needs with robust built-in security features. The device includes VLAN support, allowing for the segmentation of networks into distinct domains for enhanced data security and management. Access Control Lists (ACLs) further bolster network security by enabling fine-grained control over which devices can communicate with each other.

Allied Telesis 86222-21 also features an intuitive management interface, which is crucial for IT administrators responsible for maintaining network performance. The graphical user interface (GUI) and command line interface (CLI) provide flexibility in managing the switch, allowing for configuration changes and monitoring of network health with ease.

Additionally, this network switch is designed with energy efficiency in mind. It complies with various energy-saving standards, which not only reduces operational costs but also contributes to environmental sustainability.

Overall, the Allied Telesis 86222-21 is a powerful and flexible switch equipped with advanced features that cater to the needs of modern networks. It promotes efficient data management, robust security, and energy efficiency, making it a fitting solution for diverse networking requirements. Whether used in small offices or larger enterprise environments, its adaptability and performance capabilities make it a valuable asset in the pursuit of effective network communication.
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