Chapter 5

Advanced Configuration

The GVRP Error Statistics Table contains the following fields:

Invalid Protocol ID  Displays the device GVRP Invalid Protocol ID statistics.

Invalid Attribute Type  Displays the device GVRP Invalid Attribute ID statistics.

Invalid Attribute Value  Displays the device GVRP Invalid Attribute Value statistics.

Invalid Attribute Length  Displays the device GVRP Invalid Attribute Length statistics.

Invalid Event  Displays the device GVRP Invalid Events statistics.

Use the Clear All Counters button to reset all tables.

ACL > IP Based ACL

The IP Based ACL (Access Control List) screen contains information for defining IP-based Access Control Lists (ACLs).

ACL > IP Based ACL

ACL Name  Displays the user-defined IP based ACLs.

New ACL Name  Define a new user-defined IP based ACL, the name cannot include spaces.

Delete ACL  Deletes the selected ACL.

Action  Indicates the action assigned to the packet matching the ACL. Packets are forwarded or dropped. In addition, the port can be shut down, a trap can be sent to the network administrator, or a packet assigned rate limiting restrictions for forwarding. The options are as follows:

•• Permit  Forwards packets which meet the ACL criteria.

•• Deny  Drops packets which meet the ACL criteria.

•• Shutdown  Drops packet that meets the ACL criteria, and disables the port to which the packet was addressed. Ports are reactivated from the Port Management screen.

Protocol  Creates an Access Control Entry (ACE) based on a specific protocol.

•• Select from List  Selects from a protocols list on which ACE can be based. The possible field values are:

•• Any  Matches the protocol to any protocol.

•• EIGRP  Indicates that the Enhanced Interior Gateway Routing Protocol (EIGRP) is used to classify network flows.

•• ICMP  Indicates that the Internet Control Message Protocol (ICMP) is used to classify network flows.

•• IGMP  Indicates that the Internet Group Management Protocol (IGMP) is used to classify network flows.

•• TCP  Indicates that the Transmission Control Protocol is used to classify network flows.

•• OSPF  Matches the packet to the Open Shortest Path First (OSPF) protocol.

•• UDP  Indicates that the User Datagram Protocol is used to classify network flows.

•• Protocol ID To Match  Adds user-defined protocols to which packets are matched to the ACE. Each protocol has a specific protocol number which is unique. The possible field range is 0–255.

TCP Flags  Filters packets by TCP flag. Filtered packets are either forwarded or dropped. Filtering packets by TCP flags increases packet control, which increases network security. The values that can be assigned are:

•• Set  Enables filtering packets by selected flags.

•• Unset  Disables filtering packets by selected flags.

•• Don’t care  Indicates that selected packets do not influence the packet filtering process.

The TCP Flags that can be selected are:

•• Urg  Indicates the packet is urgent.

•• Ack  Indicates the packet is acknowledged.

•• Psh  Indicates the packet is pushed.

•• Rst  Indicates the connection is dropped.

•• Syn  Indicates request to start a session.

•• Fin  Indicates request to close a session.

WebView Switches

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Linksys SRW2048, SRW248G4, SRW2024, SRW224G4, SRW2016 manual ACL IP Based ACL
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SRW2016, SRW224G4, SRW2024, SRW2048, SRW248G4 specifications

The Linksys SRW2048 is a robust Layer 2 managed switch that caters to the networking needs of small to medium-sized businesses. Designed with performance and reliability in mind, it provides features that ensure optimal network efficiency and security.

One of the standout features of the SRW2048 is its 48 10/100/1000 Mbps Gigabit Ethernet ports, enabling high-speed data transfer and seamless connectivity for various devices within the network. This makes it ideal for environments with heavy data traffic, ensuring minimal latency and high performance.

The SRW2048 also supports advanced Layer 2 management features, including VLAN (Virtual Local Area Network) support, which allows users to segment the network into smaller, manageable sections. This is crucial for improving security and performance, as it reduces unnecessary traffic and potential broadcast storms. With a VLAN configuration, businesses can group users and devices based on function or department, ensuring efficient communication within teams.

In addition to VLAN capabilities, the Linksys SRW2048 incorporates Quality of Service (QoS) features. This technology prioritizes critical network traffic, such as voice over IP (VoIP) and video conferencing, ensuring that these applications receive the bandwidth they require for optimal performance. This is particularly beneficial for businesses that rely on real-time communication tools.

The switch also enhances security through features such as IEEE 802.1X port security, which ensures that only authorized users can access the network. The SRW2048 supports access control lists (ACLs), allowing administrators to set specific permissions for users and devices, further tightening security.

Linksys has also equipped the SRW2048 with a user-friendly web-based management interface, simplifying the process of configuring and monitoring network performance. This accessible interface allows IT personnel to quickly identify issues, manage traffic, and configure settings without extensive training.

Another notable characteristic of the Linksys SRW2048 is its robust build quality and reliability. With a metal chassis and fanless design, it maintains a low acoustic footprint and ensures passive cooling, making it suitable for office environments.

Overall, the Linksys SRW2048 is a feature-rich managed switch that combines advanced networking technologies, efficient performance, and security features to meet the diverse needs of modern businesses. Its scalability, manageability, and robust construction make it a valuable addition to any network infrastructure.
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