Configuring Port Security | HP 2626 (J4900A/B), 4100gl, 2600-PWR

Configuring and Monitoring Port Security

Port Security Command Options and Operation

The following command example shows the option for entering a range of ports, including a series of non-contiguous ports. Note that no spaces are allowed in the port number portion of the command string:

ProCurve(config)# show port-security A1-A3,A6,A8

Configuring Port Security

Using the CLI, you can:

■Configure port security and edit security settings.

■Add or delete devices from the list of authorized addresses for one or more ports.

■Clear the Intrusion flag on specific ports

Syntax: port-security [e] < port-list >

[learn-mode < continuous static configured port-access >] [address-limit < integer >]

[mac-address < mac-addr >] [< mac-addr> . . . < mac-addr>] [action < none send-alarm send-disable >] [clear-intrusion-flag]

(For the configured option, above, refer to the Note on page 9-8.

no port-security < port-list> mac-address < mac-addr> [< mac-addr> . . .

<mac-addr >]

Specifying Authorized Devices and Intrusion Responses

Learn-Mode Static. This example configures port A1 to automatically accept the first device (MAC address) it detects as the only authorized device for that port. (The default device limit is 1.) It also configures the port to send an alarm to a network management station and disable itself if an intruder is detected on the port.

ProCurve(config)# port-security a1 learn-mode static action send-disable

The next example does the same as the preceding example, except that it specifies a MAC address of 0c0090-123456 as the authorized device instead of allowing the port to automatically assign the first device it detects as an authorized device.

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HP 2626 (J4900A/B), 4100gl, 2600-PWR, 6108 Configuring Port Security, Specifying Authorized Devices and Intrusion Responses

Contents

Access Security Guide Page Access Security Guide December Publication Number Contents Terminology Operating Rules and Notes Contents Overview Client Options General FeaturesConfiguring the Switch To Access a Radius Server General Authentication Process Using a TACACS+ Server Viewing the Switch’s Current Authentication ConfigurationConfiguring the Switch’s TACACS+ Server Access Messages Related to TACACS+ Operation Operating Notes Configuring Secure Shell SSH Local Authentication Process Vii Generate the Switch’s Server Host CertificateCommon Errors in SSL Setup Configuring and Monitoring Port Security Viii Operating Notes for Port Security ContentsAccess Levels Web Configuring IP Authorized Managers About Your Switch Manual Set Switch manual set includes the following Configuration Management Guide Feature IndexFeature Xii Product Documentation Feature Xiii Xiv Tftp Contents Getting Started Introduction Overview of Access Security FeaturesAccess security features covered in this guide include Getting Started Management Access Security Protection Fabric than if you use only local passwords General Switch Traffic Security Guidelines Management Access Security Protection Conventions Feature Descriptions by ModelCommand Syntax Statements Port Identity Examples Command PromptsScreen Simulations Sources for More Information Getting Help in the Menu Interface IP Addressing Run SetupNeed Only a Quick Start? Main Menu of the Menu interface, select To Set Up and Install the Switch in Your Network Interpreting LED behavior This page is intentionally unused Configuring Username and Password Security Overview Web browser interface T e U t i o n To set a new password Configuring Local Password SecurityMenu Setting Passwords Console Passwords Commands Used in This Section CLI Setting Passwords and UsernamesContinue Deletion of password protection? No Click on the Security tab Web Setting Passwords and UsernamesClick on Device Passwords When Security Is Important Front-Panel Security Clear Button ResetClearFront-Panel Button Functions Press and hold the Reset button Reset ButtonRestoring the Factory Default Configuration Configuring Front-Panel Security ResetClear Self Test Syntax show front-panel-security Default Front-Panel Security Settings Either form of the command enables password-clear Changing the Operation of the Reset+Clear Combination Example of Re-Enabling the Clear Button’s Default Operation Default configuration settings Password RecoveryDisabling or Re-Enabling the Password Recovery Process Management access to the switch Steps for Disabling Password-Recovery No front-panel-security password-recovery Password Recovery Process 11. Example of the Steps for Disabling Password-Recovery This page is intentionally unused Overview Client Options General Features Overview Radius server uses the device MAC address as the username Lock a particular device to a specific switch and portClient Options General Features Web-based Authentication How Web and MAC Authentication OperateAuthenticator Operation Progress Message During Authentication MAC-based Authentication How Web and MAC Authentication Operate Terminology Operating Rules and Notes Management Operating Rules and Notes General Setup Procedure for Web/MAC Authentication Do These Steps Before You Configure Web/MAC Authentication General Setup Procedure for Web/MAC Authentication Addresses Aabbcc-ddeeff Aa-bb-cc-dd-ee-ff Aabbccddeeff Configuring the Switch To Access a Radius Server Radius Server Configuration Commands Example of Configuring a Switch To Access a Radius Server Configuring Web Authentication Overview Configure the Switch for Web-Based Authentication Command Configuration Level Syntax no aaa port-access web-based e port-list Syntax aaa port-access web-based e port-list max-requests Default 30 seconds Configuring MAC Authentication on Switch Configure the Switch for MAC-Based Authentication Syntax Default 30seconds Show Status and Configuration Web-Based Authentication Command Show Status and Configuration of MAC-Based Authentication Syntax show port-access port-list mac-based clients Show Client Status Timed out-unauth vlan This page is intentionally unused TACACS+ Authentication TACACS+ Authentication Example of TACACS+ Operation Terminology Used in Tacacs Applications TACACS+ Authentication General Authentication Setup Procedure General System Requirements Using the Encryption Key on Determine the following TACACS+ Authentication Before You Begin Configuring TACACS+ on the SwitchSwitch offers three command areas for TACACS+ operation This example shows the default authentication configuration CLI Commands Described in this SectionViewing the Switch’s Current Authentication Configuration Example of the Switch’s TACACS+ Configuration Listing Configuring the Switch’s Authentication Methods Authentication for the access being configured is local AAA Authentication ParametersName Default Range Function Method/privilege path. Available only if the primary method Primary/Secondary Authentication Table Login Primary to Local authentication ProCurve config# aaa authentication num-attempts Configuring the Switch’s TACACS+ Server Access Switch or your TACACS+ server Syntax tacacs-server host ip-addr key key-string Details on Configuring Tacacs Servers and Keys Name Default Range Tacacs-server host ip-addr None Name Default Range Key key-string None null Timeout 1 ProCurveconfig# no tacacs-server host To configure north01 as a per-server encryption key Changes without executing write mem How Authentication OperatesGeneral Authentication Process Using a TACACS+ Server TACACS+ Authentication Terminal must initiate a new session before trying again Local Authentication ProcessAuthentication General Operation Using the Encryption KeyEncryption Options in the Switch ProCurveconfig# tacacs-server key north40campus Operating Notes Tacacs-server configurationMessages Related to TACACS+ Operation CLI Message Meaning TACACS+ Authentication Radius Authentication and Accounting Web Series 2600, 2600-PWR, and 2800 switches Port-Access Radius Authentication and Accounting Host See Radius Server Switch Operating Rules for Radius General Radius Setup Procedure Preparation for Configuring Radius on the Switch Configuring the Switch for Radius Authentication Radius Authentication Commands Outline of the Steps for Configuring Radius Authentication Radius server documentation Radius Authentication and Accounting Example Configuration for Radius Authentication Configure the Switch To Access a Radius Server Configuring Radius Accounting instead of continuing here Radius Authentication and Accounting Configure the Switch’s Global Radius Parameters T e Radius Authentication and Accounting Listings of Global Radius Parameters Configured In Figure Local Authentication Process Configuring Radius Accounting Radius Accounting Commands Under Port-Based Access Control Access methodsConfigured one or more Radius servers to support the switch This section assumes you have already Steps for Configuring Radius Accounting Operating Rules for Radius Accounting Configure the Switch To Access a Radius Server Key key-string Radius Authentication and Accounting Start-Stop Syntax no aaa accounting update periodic 1 Viewing Radius Statistics General Radius Statistics Values for Show Radius Host Output Figure Term Definition Radius Authentication Statistics Syntax show authentication 14. Listing the Accounting Configuration in the Switch Radius Accounting Statistics Changing RADIUS-Server Access Order 17. Search Order for Accessing a Radius Server 18. Example of New Radius Server Search Order Messages Related to Radius Operation Message Meaning This page is intentionally unused Configuring Secure Shell SSH Client Public Key Authentication Model Configuring Secure Shell SSH Use a key to authenticate itself to the switch Using these algorithms unless otherwise noted Terminology Prerequisite for Using SSH Public Key Formats Primary SSH AuthenticationSSH Options Configuring Secure Shell SSH General Operating Rules and Notes SSH-Related Commands in This Section Configuring the Switch for SSH OperationAssign Local Login Operator and Enable Manager Password Generate the Switch’s Public and Private Key Pair Example of Configuring Local Passwords Pair automatically disables SSH To the switch using the earlier pairCLI kill command Operation Provide the Switch’s Public Key to ClientsFor example, to generate and display a new key Example of a Public Key Generated by the Switch Inserted Bit Exponent e Modulus n Switch’s Public and Private Key Pair on To enable SSH on the switch Always 896 bits 49, 80, 1506, Configure the Switch for SSH Authentication U t i o n T e Option B Configuring the Switch for Client Public-Key SSH Copies a public key file into the switch Further Information on SSH Client Public-Key Authentication Use an SSH Client To Access the Switch Configuring Secure Shell SSH 14. Example of a Client Public Key Property Supported Comments Value Ascii Deletes the client-public-key file from the switch U t i o n Messages Related to SSH Operation 00000K Peer unreachable Generating new RSA host key. If Configuring Secure Socket Layer SSL Steps for Configuring and Using SSL for Switch Server Certificate authentication with User Password Configuring Secure Socket Layer SSL Otherwise noted 3DES 168-bit, 112 EffectiveRC4 40-bit, 128-bit Configuring Secure Socket Layer SSL Prerequisite for Using SSL General Operating Rules and Notes Configuring the Switch for SSL Operation SSL-Related CLI Commands in This Section Security Tab Password Button Verified unequivocally Generate the Switch’s Server Host CertificateParticular switch/client session, and then discarded Earlier certificate To Generate or Erase the Switch’s Server Certificate with CLI For example, to generate a key and a new host certificate Comments on Certificate FieldsCertificate Field Descriptions Field Name Description Can resume SSL operation For example, to display the new server host certificate Configuring Secure Socket Layer SSL Configuring Secure Socket Layer SSL Web browser Interface showing current SSL Host Certificate Configuring Secure Socket Layer SSL Example of a Certificate Request and Reply T e Zeroize the switch’s host certificate or certificate key. Using the CLI interface to enable SSLUsing the web browser interface to enable SSL Execute no web-management ssl Enable SLL Port number Selection Common Errors in SSL Setup Error During Possible Cause This page is intentionally unused Configuring Port-Based Access Control Operating Rules for Authorized-Client Configuring Port-Based Access Control Why Use Port-Based Access Control? Configuring Port-Based Access Control Example of an 802.1X Application How 802.1X Operates Switch-Port Supplicant Operation Example of Supplicant Operation Authenticator at the same time 802.1X standard General Operating Rules and Notes Configuring Port-Based Access Control General Setup Procedure for Port-Based Access Control Do These Steps Before You Configure 802.1X Operation Overview Configuring 802.1X Authentication on Switch Authenticators operate as expected Configuring Port-Based Access Control 802.1X Authentication Commands Configuring Switch Ports as 802.1X AuthenticatorsEnable 802.1X Authentication on Selected Ports Quiet-period 0 Max-requests 1 Clears authenticator statistics counters Configure the 802.1X Authentication Method Example of 802.1X Port-Access Authentication Enable 802.1X Authentication on the Switch Enter the Radius Host IP Addresses Introduction 802.1X Open Vlan Mode802.1X-Related Show Commands Radius server configuration Use Models for 802.1X Open Vlan Modes Membership in the Vlan 1X Open Vlan Mode Options 802.1X Open Vlan Mode 802.1X Per-Port Configuration Port Response Condition Rule Multiple Authenticator Ports Using Setting Up and Configuring 802.1X Open Vlan Mode Before you configure the 802.1X Open Vlan mode on a port Mised by an unauthorized client Vlan Operation Activate authentication on the switchPort-Security To Allow Only 802.1X Devices on ProCurveconfig# aaa authentication port-access eap-radius 802.1X Open Vlan Operating Notes ProCurveconfig# aaa port-access authenticator e A10 Enables 802.1X authentication on the port 802.1X Authentication Commands 802.1X Supplicant Commands Default supplicant parameters or any previously configured Syntax aaa port-access supplicant ethernet port-list Enter secret password Repeat secret password Max-start 1 Displaying 802.1X Configuration Statistics, and Counters Show Commands for Port-Access Authenticator Show port-access authenticator Syntax Config e port-list Viewing 802.1X Open Vlan Mode Status Access Control Open Vlan Mode Status802.1X authentication Authenticator No Pvid The port is not an untagged member of any Vlan Status Indicator MeaningCurrent Vlan ID Switch reboots Show Commands for Port-Access SupplicantSupplicant port detects a different authenticator device How RADIUS/802.1X Authentication Affects Vlan Operation Example of an Active Vlan Configuration Otherwise, port A2 is not listed Assignment Messages Related to 802.1X Operation 1X Operating Messages Configuring and Monitoring Port Security Cast traffic Configuring and Monitoring Port SecurityBasic Operation Blocking Unauthorized Traffic Switch a Physical Topology Logical Topology for Access to Switch aSwitch B Switch C Planning Port Security Commands Port Security Command Options OperationPort Security Commands Used in This Section Acquires and maintains authorized addresses 080090-1362f2 00f031-423fc1 4 b0-880a80 the authorized address Address-limit integer Clear-intrusion-flag Learned MAC Addresses Displaying Current Port Security SettingsRetention of Static MAC Addresses Assigned/Authorized MAC Addresses Using the CLI To Display Port Security Settings Configuring Port Security Specifying Authorized Devices and Intrusion Responses Adding a MAC Address to an Existing Port List Example of Adding an Authorized Device to a Port Example of Adding a Second Authorized Device to a Port Device’s MAC address. For example See the MAC Address entry in the table on Address configuration. Refer to the Note on Remove 0c0090-123456 from the Authorized Address list MAC Lockdown Example of Port A1 After Removing One MAC Address Configuring and Monitoring Port Security Differences Between MAC Lockdown and Port Security MAC Lockdown Operating Notes Deploying MAC Lockdown MAC Lockdown Deployed At the Network Edge Provides Security Inside the Core Network as well, not just on the edge Edge switchesAddress and stealing data External Network X e d U s e r s MAC Lockout 11. Listing Locked Down Ports Configuring and Monitoring Port Security Port Security and MAC Lockout 12. Listing Locked Out Ports IP Lockdown Using the IP Lockdown CommandIP lockdown command operates as follows Operating Rules for IP Lockdown Log command displays the Event Log Web Displaying and Configuring Port Security FeaturesReading Intrusion Alerts and Resetting Alert Flags Click on Port Security How the Intrusion Log Operates As follows Resetting Alert FlagsFlags It detects Type I Intrusion log to display the Intrusion Log 15. Example of the Intrusion Log Display Configuring and Monitoring Port Security List intrusion log content 18. Example of Port Status Screen After Alert Flags Reset Using the Event Log To Find Intrusion Alerts Event Log lists port security intrusions as Operating Notes for Port Security Configuring and Monitoring Port Security ProCurve Series 2600/2600-PWR and 2800 Switches Traffic/Security Filters 10-2 Filter for the Actions Shown in Figure 10-3 Using Source-Port Filters Operating Rules for Source-Port Filters Configuring a Source-Port Filter 10-5 ProCurveconfig# filter source-port trk1 drop trk2,10-15 10-6 Source Port Destination Action Ports Viewing a Source-Port Filter10-7 Filter Indexing 10-8 Editing a Source-Port Filter 10-9 Operating Rules for Named Source-Port Filters Using Named Source-Port FiltersDefining and Configuring Named Source-Port Filters 10-10 10-11 10-12 Sample Configuration for Named Source-Port FiltersViewing a Named Source-Port Filter Applying Example Named Source-Port Filters 10-14 Source Port 10-15 10-16 10-17 10-18 Using Authorized IP Managers Operating Notes 11-1 Authorized IP Manager Features Using Authorized IP Managers You can configure Access LevelsConfiguration Options 11-4 Defining Authorized Management StationsOverview of IP Mask Operation From the console Main Menu, select Menu Viewing and Configuring IP Authorized ManagersSwitch Configuration … IP Authorized Managers 11-5 Authorized IP Managers Commands Used in This Section CLI Viewing and Configuring Authorized IP ManagersListing the Switch’s Current Authorized IP Managers IP Mask Configuring IP Authorized Managers for the Switch11-7 Address of the authorized manager you want to delete 11-8 Building IP Masks Web Configuring IP Authorized ManagersConfiguring One Station Per Authorized Manager IP Entry Analysis of IP Mask for Single-Station Entries 11-10 Any value from 0 to Additional Examples for Authorizing Multiple Stations 11-11 Operating Notes Index Index See RADIUS. message See SSH. proxy Web server … Quick start … Show accounting … 5-28 show authentication … See RADIUS. troubleshooting Vlan This page is intentionally unused December