Building IP Masks, Authorized 227 125, Manager IP | HP 4100gl

Using Authorized IP Managers

Building IP Masks

For web-based help on how to use the web browser interface screen, click on the [?] button provided on the web browser screen.

Building IP Masks

The IP Mask parameter controls how the switch uses an Authorized Manager IP value to recognize the IP addresses of authorized manager stations on your network.

Configuring One Station Per Authorized Manager IP

Entry

This is the easiest way to apply a mask. If you have ten or fewer management and/or operator stations, you can configure them quickly by simply adding the address of each to the Authorized Manager IP list with 255.255.255.255 for the corresponding mask. For example, as shown in figure 8-3 on page 8-6, if you configure an IP address of 10.28.227.125 with an IP mask of 255.255.255.255, only a station having an IP address of 10.28.227.125 has management access to the switch.

Figure 8-4. Analysis of IP Mask for Single-Station Entries

		1st	2nd	3rd	4th	Manager-Level or Operator-Level Device Access
		Octet	Octet	Octet	Octet

	IP Mask	255	255	255	255	The “255” in each octet of the mask specifies that only the exact value in
	Authorized	10	28	227	125	that octet of the corresponding IP address is allowed. This mask allows
	Authorized	10	28	227	125	management access only to a station having an IP address of 10.33.248.5.
	Manager IP
	Manager IP

8-9

Image 215

HP 4100gl manual Building IP Masks, Configuring One Station Per Authorized Manager IP Entry, Authorized 227 125

Contents

Access security guide Hp procurve Series 4100gl switches Page Access Security Guide HP Procurve Series 4100GL Switches Publication Number Contents Configuring the Switch for Radius Authentication Controlling Web Browser Interface Access When When Using Radius Authentication Controlling Web Browser Interface Access Further Information on SSH Client Public-Key Authentication Operating Rules for Authorized-Client General Setup Procedure forConfiguring Switch Ports To Operate As Supplicants for 802.1x Connections to Other Switches Resetting Alert Flags Operating Notes for Port Security How RADIUS/802.1x Authentication Affects Vlan OperationPort Security Command Options and Operation Web Displaying and Configuring Port Security Features Defining Authorized Management Stations Page Getting Started Contents Getting Started Overview of Access Security FeaturesIntroduction Xiii Simulating Display Output Command Syntax ConventionsCommand Prompts Screen Simulations Related Publications Getting Started Click on technical support Getting Documentation From the Web Sources for More Information Main Menu of the Menu interface, select To Set Up and Install the Switch in Your NetworkRun Setup Need Only a Quick Start?Page Configuring Username and Password Security Level Actions Permitted Configuring Username and Password SecurityFeature Default Menu Overview Passwords are case-sensitive Console Passwords Configuring Local Password SecurityMenu Setting Passwords To set a new password Commands Used in This Section CLI Setting Passwords and UsernamesContinue Deletion of password protection? No Configuring Manager and Operator Passwords Enter Web Setting Passwords and UsernamesClick on Device Passwords Click on the Security tab Using TACACS+ Authentication Messages Operating Notes TACACS+ Authentication Example of TACACS+ Operation TACACS+ Authentication TACACS+ Authentication Terminology Used in Tacacs Applications General System Requirements General Authentication Setup Procedure Determine the following Result in Operator read-only access. Thus, when configuringAdditional features that the application offers Always used as the secondary access control method Telnet Before You Begin Configuring TACACS+ on the SwitchCLI Commands Described in this Section Command This example shows the default authentication configuration Viewing the Switch’s Current Authentication Configuration Configuring the Switch’s Authentication Methods Method/privilege path. Available only if the primary method AAA Authentication ParametersName Default Range Function Authentication for the access being configured is local Login Primary to Local authentication Primary/Secondary Authentication Table HPswitchconfig# aaa authentication num-attempts TACACS+ server Configuring the Switch’s TACACS+ Server Access Syntax tacacs-server host ip-addr key key-string None Name Default Range None null Timeout 1 To configure north01 as a per-server encryption key HPswitchconfig# no tacacs-server host Changes without executing write mem How Authentication OperatesGeneral Authentication Process Using a TACACS+ Server TACACS+ Authentication Authentication Local Authentication Process Using the Encryption Key HPswitchconfig# tacacs-server key north40campus CLI Message Meaning Tacacs-server configurationMessages Related to TACACS+ Operation Operating Notes Rized persons Controlling Web Browser Interface Access When Using Radius Radius Authentication and Accounting Radius Authentication and Accounting Port-Access Terminology Switch Operating Rules for Radius Preparation for Configuring Radius on the Switch General Radius Setup Procedure Radius Authentication Commands Configuring the Switch for Radius AuthenticationOutline of the Steps for Configuring Radius Authentication Server IP address Used on the specified Radius server. Default nullConfigure the global Radius parameters Radius server documentation Local none Authentication Process on Example Configuration for Radius Authentication Configuring Radius Accounting instead of continuing here Configure the Switch To Access a Radius Server Radius Authentication and Accounting Key global-key-string Configure the Switch’s Global Radius Parameters To an authentication request before counting the attempt as Listings of Global Radius Parameters Configured In Figure Local Authentication Process Word pair for the level you want to enter On page 3-5 before continuing here Configuring Radius AccountingRadius Accounting Commands Operating Rules for Radius Accounting Steps for Configuring Radius Accounting Configure the Switch To Access a Radius Server Radius Authentication and Accounting Start-Stop Example of Configuring Accounting Types Update period General Radius Statistics Viewing Radius Statistics PendingRequests Term Definition Radius Authentication Statistics Radius Accounting Statistics 14. Listing the Accounting Configuration in the Switch 17. Search Order for Accessing a Radius Server Changing RADIUS-Server Access Order 18. Example of New Radius Server Search Order Message Meaning Messages Related to Radius OperationPage Configuring the Switch for SSH Operation Configuring Secure Shell SSH Configuring Secure Shell SSH Client Public Key Authentication Model DES 56-bit Use a key to authenticate itself to the switch3DES 168-bit Prerequisite for Using SSH SSH Options Public Key Formats Ssh enable radius Switch Primary SSH Authenticate Primary SwitchManager Ssh enable local Enable Ssh enable tacacs Configuring Secure Shell SSH General Operating Rules and Notes SSH-Related Commands in This Section Configuring the Switch for SSH Operation Example of Configuring Local Passwords Generating the Switch’s Public and Private Key Pair Pair automatically disables SSH To the switch using the earlier pairCLI kill command Operation Providing 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 Modulus Switch’s Public and Private Key Pair on To enable SSH on the switch On the switch by appearing to be you Version of SSH to accept connections from. default 1-or-2 Option a Configuring SSH Access for Password-Only SSH Configuring the Switch for SSH Authentication U t i o n Configures 14 shows how to check the results of the above commands Use an SSH Client To Access the Switch Further Information on SSH Client Public-Key Authentication 15. Example of a Client Public Key Ascii Property Supported Comments Value Show crypto client-public-key babble fingerprint Deletes the client-public-key file from the switch 00000K Peer unreachable Messages Related to SSH Operation Key for the switch Comments on certificate fields Assigning a Local Login Operator Configuring Secure Socket Layer SSL Server Certificate authentication with User Password RC4 40-bit, 128-bit 3DES 168-bit, 112 Effective General steps for configuring ssl include Client Preparation Prerequisite for Using SSL Provided with your browser General Operating Rules and Notes SSL-Related CLI Commands in This Section Configuring the Switch for SSL OperationAssigning a Local Login Operator and Enable ManagerPassword Security Tab Password Button Earlier certificate Generating the Switch’s Server Host CertificateParticular switch/client session, and then discarded Verified unequivocally CLI CLI commands used to generate a Server Host Certificate Field Name Description Certificate Field DescriptionsFor example, to generate a key and a new host certificate For example, to display the new server host certificate CLI Command to view host certificatesHost-cert command Can resume SSL operation New key then just select current from the list Installed certificateSelect the Generate Certificate button Iii Select Self signed certificate in the type box Configuring Secure Socket Layer SSL Web browser Interface showing current SSL Host Certificate Configuring Secure Socket Layer SSL Certificate Request Certificate Request Reply T e Execute no web-management ssl Zeroize the switch’s host certificate or certificate key . Enable SLL Port number Selection Error During Possible Cause Common Errors in SSL setupPage Messages Related to 802.1x Operation -47 General Setup Procedure for Port-Based Access ControlGeneral Operating Rules and Notes -9 802.1x on the Series 4100GL switches includes the following Why Use Port-Based Access Control?General Features Refer to Radius Authentication and Accounting on Configuring Port-Based Access Control Authenticating One Switch to Another .1x authentication also How 802.1x Operates Authenticator Operation Example of Supplicant Operation Switch-Port Supplicant Operation Terminology 802.1x standard General Operating Rules and Notes Configuring Port-Based Access Control Do These Steps Before You Configure 802.1x Operation General Setup Procedure for Port-Based Access Control Authenticators operate as expected Overview Configuring 802.1x Authentication on Switch Configuring Port-Based Access Control 802.1x Authentication Commands Configuring Switch Ports as Authenticators To activate 802.1x authentication on the switch Enable 802.1x Authentication on Selected Ports Tx-period 0 Clears authenticator statistics counters Chap-radius Configure the 802.1x Authentication MethodLocal Eap-radius Enter the Radius Host IP Addresses Enable 802.1x Authentication on the Switch Introduction 802.1x-Related Show Commands Radius server configuration802.1x Open Vlan Mode Tagged Vlan as the Unauthorized-Client Vlan Use Models for 802.1x Open Vlan Modes Port as a static, tagged member of the VLAN, membership 802.1x Per-Port Configuration Port Response Condition Rule Multiple Authenticator Ports Using Before you configure the 802.1x Open Vlan mode on a port Setting Up and Configuring 802.1x Open Vlan Mode Mised by an unauthorized client Vlan Operation Activate authentication on the switchPort-Security To Allow Only 802.1x Devices on HPswitchconfig# aaa authentication port-access eap-radius 802.1x Open Vlan Operating Notes Action none send-alarm send-disable Enables 802.1x authentication on the port 802.1x Authentication Commands 802.1x Supplicant Commands Specified ports Authenticator at the same time Enter secret password Repeat secret password Syntax aaa port-access supplicant ethernet port-list Max-start 1 Show Commands for Port-Access Authenticator Displaying 802.1x Configuration, Statistics, and Counters Viewing 802.1x Open Vlan Mode Status Page To the port Open Vlan Mode Status Configuring Port-Based Access Control 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 1x Operating Messages Messages Related to 802.1x OperationPage Retention of Static Addresses Basic OperationBlocking Unauthorized Traffic -3 Trunk Group Exclusion -4 Basic Operation Configuring and Monitoring Port Security Blocking Unauthorized Traffic Security Trunk Group Exclusion Planning Port Security Acquires and maintains authorized addresses Port Security Command Options OperationPort Security Commands Used in This Section Commands Mac-address mac-addr Port Security ParametersMode Address address-limit integer Clear- clear-intrusion-flag Retention of Static AddressesParameter Description Using the CLI To Display Port Security Settings Displaying Current Port Security Settings Configuring Port Security Configuring and Monitoring Port Security Example of Adding an Authorized Device to a Port Entry in the table on Command option removes unwanted devices MAC addresses fromDevice’s MAC address. For example Removing a Device From the Authorized List for a Port. This Remove 0c0090-123456 from the Authorized Address list To automatically become authorized Click on Port Security Web Displaying and Configuring Port Security FeaturesReading Intrusion Alerts and Resetting Alert Flags Example of Multiple Intrusion Log Entries for the Same Port How the Intrusion Log Operates Intrusion flag FlagsOperates as follows It detects 11. Example of the Intrusion Log Display Type I Intrusion log to display the Intrusion Log List intrusion log content Intrusion Alert on port A1 Event Log lists port security intrusions as 14. Example of Port Status Screen After Alert Flags Reset Operating Notes for Port Security Configuring and Monitoring Port Security Page Building IP Masks Using Authorized IP Managers Using Authorized IP Managers Authorized IP Manager Features Options Access LevelsYou can configure Overview of IP Mask Operation Defining Authorized Management Stations From the console Main Menu, select Menu Viewing and Configuring IP Authorized ManagersSwitch Configuration IP Authorized Managers Building IP Masks on Authorized IP Managers Commands Used in This Section CLI Viewing and Configuring Authorized IP Managers IP Mask Configuring IP Authorized Managers for the Switch Click on Authorized Addresses Web Configuring IP Authorized ManagersAddress of the authorized manager you want to delete Manager IP Configuring One Station Per Authorized Manager IP EntryBuilding IP Masks Authorized 227 125 Using Authorized IP Managers IP Mask 255 249 125, or 127 can access the switchBuilding IP Masks Any value from 0 to Authorized Additional Examples for Authorizing Multiple StationsResults Using Authorized IP Managers Page Index Index See port access control OpenSSH … 4-3,5-2 operating notes See SSH. proxy Web server … Quick start … SSL See RADIUS. … 3-4 troubleshoot … 2-15 troubleshooting Index Page 5990-3032