Chapter 10: Security Configuration Guide

Layer-2 Filter Examples

SSR

et.1.1 et.1.2et.1.3

Hub

Engineers, Consultant

Engineering

Finance

File Servers

File Servers

Figure 13. Source Filter Example

Example 1: Address Filters

Source filter: The consultant is not allowed to access any file servers. The consultant is only allowed to interact with the engineers on the same Ethernet segment – port et.1.1. All traffic coming from the consultant’s MAC address will be dropped.

filters add address-filter name consultant source-mac 001122:334455 vlan 1 in-port-list et.1.1

Destination filter: No one from the engineering group (port et.1.1) should be allowed to access the finance server. All traffic destined to the finance server's MAC will be dropped.

filters add address-filter name finance dest-mac AABBCC:DDEEFF vlan 1 in-port-list et.1.1

Flow filter: Only the consultant is restricted access to one of the finance file servers. Note that port et.1.1 should be operating in flow-bridging mode for this filter to work.

filters add address-filter name consult-to-finance source-mac 001122:334455 dest-mac AABBCC:DDEEFF vlan 1 in-port-list et.1.1

Static Entries Example

Source static entry: The consultant is only allowed to access the engineering file servers on port et.1.2.

filters add static-entry name consultant source-mac 001122:334455 vlan 1 in-port-list et.1.1 out-port-list et.1.2 restriction allow

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Cabletron Systems 9032578-02 manual Layer-2 Filter Examples, Et.1.1 et.1.2et.1.3, Hub, Static Entries Example

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