Brocade Communications Systems ICX 6650 series Manuale utente

53-1002601-01

28 September 2012

Brocade ICX 6650

Security Configuration Guide

Supporting FastIron Software Release 07.5.00

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Document History

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Title Publication number Summary of changes Date

Brocade ICX 6650 Security

Configuration Guide

53-1002601-01 Release 07.4.00 document

updated with

enhancements in Release

07.5.00

September 2012

Brocade ICX 6650 Security Configuration Guide iii

53-1002601-01

Contents

About This Document

Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi

Supported hardware and software . . . . . . . . . . . . . . . . . . . . . . . . . . . xi

Brocade ICX 6650 slot and port numbering . . . . . . . . . . . . . . . . . . . . xi

How this document is organized . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii

Document conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii

Text formatting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii

Command syntax conventions . . . . . . . . . . . . . . . . . . . . . . . . . . xiii

Notes, cautions, and warnings . . . . . . . . . . . . . . . . . . . . . . . . . . xiii

Notice to the reader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv

Related publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv

Additional information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv

Brocade resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv

Other industry resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv

Getting technical help. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv

Document feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi

Chapter 1 Security Access

Securing access methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Remote access to management function restrictions . . . . . . . . . . . . 3

ACL usage to restrict remote access . . . . . . . . . . . . . . . . . . . . . . 3

Defining the console idle time . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Remote access restrictions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Restricting access to the device based on IP or

MAC address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Defining the Telnet idle time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Changing the login timeout period for Telnet sessions . . . . . . . . 8

Specifying the maximum number of login attempts

for Telnet access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Changing the login timeout period for Telnet sessions . . . . . . . . 9

Restricting remote access to the device to

specific VLAN IDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Designated VLAN for Telnet management sessions

to a Layer 2 switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Device management security . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Disabling specific access methods. . . . . . . . . . . . . . . . . . . . . . . 12

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Passwords used to secure access . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Setting a Telnet password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Setting passwords for management privilege levels . . . . . . . . . 14

Recovering from a lost password . . . . . . . . . . . . . . . . . . . . . . . . 16

Displaying the SNMP community string . . . . . . . . . . . . . . . . . . . 16

Specifying a minimum password length. . . . . . . . . . . . . . . . . . . 16

Local user accounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Enhancements to username and password . . . . . . . . . . . . . . . 17

Local user account configuration . . . . . . . . . . . . . . . . . . . . . . . . 21

Creating a password option. . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

Changing a local user password . . . . . . . . . . . . . . . . . . . . . . . . . 24

TACACS and TACACS+ security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

How TACACS+ differs from TACACS . . . . . . . . . . . . . . . . . . . . . . . 24

TACACS/TACACS+ authentication, authorization,

and accounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

TACACS authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

TACACS/TACACS+ configuration considerations . . . . . . . . . . . . 30

Enabling TACACS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Identifying the TACACS/TACACS+ servers. . . . . . . . . . . . . . . . . . 31

Specifying different servers for individual AAA functions . . . . .32

Setting optional TACACS and TACACS+ parameters . . . . . . . . . 32

Configuring authentication-method lists for

TACACS and TACACS+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

Configuring TACACS+ authorization . . . . . . . . . . . . . . . . . . . . . .36

TACACS+ accounting configuration. . . . . . . . . . . . . . . . . . . . . . . 39

Configuring an interface as the source for all

TACACS and TACACS+ packets . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Displaying TACACS/TACACS+ statistics and

configuration information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

RADIUS security. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

RADIUS authentication, authorization, and accounting . . . . . . 41

RADIUS configuration considerations. . . . . . . . . . . . . . . . . . . . .44

Configuring RADIUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Brocade-specific attributes on the RADIUS server . . . . . . . . . .45

Enabling SNMP to configure RADIUS . . . . . . . . . . . . . . . . . . . . . 47

Identifying the RADIUS server to the Brocade device . . . . . . . . 47

Specifying different servers for individual AAA functions . . . . .48

RADIUS server per port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

RADIUS server to individual ports mapping . . . . . . . . . . . . . . . . 49

RADIUS parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Setting authentication-method lists for RADIUS . . . . . . . . . . . . 51

RADIUS authorization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

RADIUS accounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Configuring an interface as the source for all

RADIUS packets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Displaying RADIUS configuration information . . . . . . . . . . . . . . 56

Authentication-method lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Examples of authentication-method lists. . . . . . . . . . . . . . . . . . 58

TCP Flags - edge port security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Using TCP Flags in combination with other ACL features . . . . . 61

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Chapter 2 SSH2 and SCP

SSH version 2 overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

Tested SSH2 clients. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64

SSH2 supported features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

SSH2 unsupported features . . . . . . . . . . . . . . . . . . . . . . . . . . . .64

SSH2 authentication types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Configuring SSH2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

Enabling and disabling SSH by generating and

deleting host keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

Configuring DSA or RSA challenge-response authentication . . 67

Optional SSH parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69

Setting the number of SSH authentication retries . . . . . . . . . .70

Deactivating user authentication . . . . . . . . . . . . . . . . . . . . . . . .70

Enabling empty password logins. . . . . . . . . . . . . . . . . . . . . . . . . 71

Setting the SSH port number . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Setting the SSH login timeout value. . . . . . . . . . . . . . . . . . . . . . 71

Designating an interface as the source for all SSH packets. . . 71

Configuring the maximum idle time for SSH sessions . . . . . . . 71

Filtering SSH access using ACLs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Terminating an active SSH connection . . . . . . . . . . . . . . . . . . . . . . .72

Displaying SSH information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Displaying SSH connection information . . . . . . . . . . . . . . . . . . . 72

Displaying SSH configuration information . . . . . . . . . . . . . . . . . 73

Displaying additional SSH connection information . . . . . . . . . . 74

Secure copy with SSH2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Enabling and disabling SCP . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

Secure copy configuration notes . . . . . . . . . . . . . . . . . . . . . . . . 75

Example file transfers using SCP . . . . . . . . . . . . . . . . . . . . . . . .75

SSH2 client . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78

Enabling SSH2 client . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78

Configuring SSH2 client public key authentication . . . . . . . . . .78

Using SSH2 client . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79

Displaying SSH2 client information . . . . . . . . . . . . . . . . . . . . . . 80

Chapter 3 Rule-Based IP ACLs

ACL overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Types of IP ACLs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

ACL IDs and entries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83

Numbered and named ACLs . . . . . . . . . . . . . . . . . . . . . . . . . . . .83

Default ACL action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84

How hardware-based ACLs work . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

How fragmented packets are processed . . . . . . . . . . . . . . . . . .84

Hardware aging of Layer 4 CAM entries . . . . . . . . . . . . . . . . . . . 84

ACL configuration considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

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Configuring standard numbered ACLs. . . . . . . . . . . . . . . . . . . . . . . . 86

Standard numbered ACL syntax . . . . . . . . . . . . . . . . . . . . . . . . . 86

Configuration example for standard numbered ACLs . . . . . . . . 87

Standard named ACL configuration. . . . . . . . . . . . . . . . . . . . . . . . . . 87

Standard named ACL syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Configuration example for standard named ACLs . . . . . . . . . . . 90

Extended numbered ACL configuration . . . . . . . . . . . . . . . . . . . . . . . 90

Extended numbered ACL syntax . . . . . . . . . . . . . . . . . . . . . . . . . 91

Configuration examples for extended numbered ACLs . . . . . . .95

Extended named ACL configuration. . . . . . . . . . . . . . . . . . . . . . . . . . 96

Extended named ACL syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Applying egress ACLs to Control (CPU) traffic . . . . . . . . . . . . . . . . .101

Preserving user input for ACL TCP/UDP port numbers. . . . . . . . . .101

ACL comment text management . . . . . . . . . . . . . . . . . . . . . . . . . . .102

Adding a comment to an entry in a numbered ACL. . . . . . . . .102

Adding a comment to an entry in a named ACL. . . . . . . . . . . .103

Deleting a comment from an ACL entry . . . . . . . . . . . . . . . . . .103

Viewing comments in an ACL . . . . . . . . . . . . . . . . . . . . . . . . . .103

Applying an ACL to a virtual interface in a protocol-

or subnet-based VLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104

ACL logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105

Configuration notes for ACL logging . . . . . . . . . . . . . . . . . . . . .105

Configuration tasks for ACL logging . . . . . . . . . . . . . . . . . . . . .106

Example ACL logging configuration. . . . . . . . . . . . . . . . . . . . . .106

Displaying ACL Log Entries . . . . . . . . . . . . . . . . . . . . . . . . . . . .107

Enabling strict control of ACL filtering of fragmented packets. . . .108

Enabling ACL support for switched traffic in the router image . . .109

Enabling ACL filtering based on VLAN membership or VE port

membership . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109

Configuration notes for ACL filtering. . . . . . . . . . . . . . . . . . . . .109

Applying an IPv4 ACL to specific VLAN members on

a port (Layer 2 devices only) . . . . . . . . . . . . . . . . . . . . . . . . . . .110

Applying an IPv4 ACL to a subset of ports on a virtual

interface (Layer 3 devices only) . . . . . . . . . . . . . . . . . . . . . . . .110

ACLs to filter ARP packets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .111

Configuration considerations for filtering ARP packets. . . . . .112

Configuring ACLs for ARP filtering . . . . . . . . . . . . . . . . . . . . . . .112

Displaying ACL filters for ARP . . . . . . . . . . . . . . . . . . . . . . . . . .113

Clearing the filter count. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113

Filtering on IP precedence and ToS values . . . . . . . . . . . . . . . . . . .113

TCP flags - edge port security . . . . . . . . . . . . . . . . . . . . . . . . . .114

QoS options for IP ACLs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114

Configuration notes for QoS options on Brocade ICX 6650 . .115

Using an IP ACL to mark DSCP values (DSCP marking). . . . . .115

DSCP matching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117

ACL-based rate limiting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

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ACL statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .118

ACLs to control multicast features . . . . . . . . . . . . . . . . . . . . . . . . . .118

Enabling and viewing hardware usage statistics for an ACL . . . . .118

Displaying ACL information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119

Troubleshooting ACLs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119

Policy Based Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119

Configuration considerations for policy-based routing . . . . . .120

Configuring a PBR policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120

Configuring the ACLs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121

Configuring the route map. . . . . . . . . . . . . . . . . . . . . . . . . . . . .122

Enabling PBR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123

Configuration examples for PBR . . . . . . . . . . . . . . . . . . . . . . . .124

Setting the next hop. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .124

Setting the output interface to the null interface . . . . . . . . . .125

Trunk formation with PBR policy . . . . . . . . . . . . . . . . . . . . . . . .126

Chapter 4 IPv6 ACLs

IPv6 ACL overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127

IPv6 ACL traffic filtering criteria . . . . . . . . . . . . . . . . . . . . . . . .128

IPv6 protocol names and numbers. . . . . . . . . . . . . . . . . . . . . .128

IPv6 ACL configuration notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .128

Configuring an IPv6 ACL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .129

Example IPv6 configurations. . . . . . . . . . . . . . . . . . . . . . . . . . .129

Default and implicit IPv6 ACL action. . . . . . . . . . . . . . . . . . . . .131

Creating an IPv6 ACL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .132

Syntax for creating an IPv6 ACL . . . . . . . . . . . . . . . . . . . . . . . .132

Enabling IPv6 on an interface to which an ACL will be applied . . .137

Applying an IPv6 ACL to an interface . . . . . . . . . . . . . . . . . . . . . . . .137

Syntax for applying an IPv6 ACL . . . . . . . . . . . . . . . . . . . . . . . .138

Applying an IPv6 ACL to a trunk group . . . . . . . . . . . . . . . . . . .138

Applying an IPv6 ACL to a virtual interface in a

protocol-based or subnet-based VLAN . . . . . . . . . . . . . . . . . . .138

Adding a comment to an IPv6 ACL entry . . . . . . . . . . . . . . . . . . . . .138

Deleting a comment from an IPv6 ACL entry . . . . . . . . . . . . . . . . .139

Support for ACL logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .139

Displaying IPv6 ACLs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .139

Chapter 5 ACL-based Rate Limiting

ACL-based rate limiting overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

Types of ACL-based rate limiting . . . . . . . . . . . . . . . . . . . . . . . . 141

Traffic policies overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142

Traffic policy structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142

Configuration notes for traffic policies . . . . . . . . . . . . . . . . . . .143

Configuring fixed rate limiting . . . . . . . . . . . . . . . . . . . . . . . . . . . . .143

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Configuring adaptive rate limiting . . . . . . . . . . . . . . . . . . . . . . . . . .144

Marking Class of Service parameters in adaptive rate limiting145

Handling packets that exceed the rate limit . . . . . . . . . . . . . . . . . . 147

Dropping packets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

Permitting packets at low priority . . . . . . . . . . . . . . . . . . . . . . .148

Enabling and using ACL statistics . . . . . . . . . . . . . . . . . . . . . . . . . .148

Enabling ACL statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .149

Enabling ACL statistics with rate limiting traffic policies. . . . .150

Viewing ACL and rate limit counters . . . . . . . . . . . . . . . . . . . . .150

Clearing ACL and rate limit counters . . . . . . . . . . . . . . . . . . . .151

Viewing traffic policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .152

Chapter 6 802.1X Port Security

IETF RFC support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .153

How 802.1X port security works . . . . . . . . . . . . . . . . . . . . . . . . . . .154

Device roles in an 802.1X configuration . . . . . . . . . . . . . . . . .154

Communication between the devices . . . . . . . . . . . . . . . . . . .155

Controlled and uncontrolled ports . . . . . . . . . . . . . . . . . . . . . .155

Message exchange during authentication . . . . . . . . . . . . . . . .157

Authenticating multiple hosts connected to the same port . .159

802.1X port security and sFlow . . . . . . . . . . . . . . . . . . . . . . . .162

802.1X accounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .163

802.1X port security configuration . . . . . . . . . . . . . . . . . . . . . . . . .163

Configuring an authentication method list for 802.1X . . . . . .164

Setting RADIUS parameters . . . . . . . . . . . . . . . . . . . . . . . . . . .164

Dynamic VLAN assignment for 802.1X port configuration . . .166

Dynamically applying IP ACLs and MAC address filters

to 802.1X ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .170

Enabling 802.1X port security. . . . . . . . . . . . . . . . . . . . . . . . . . 174

Setting the port control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174

Configuring periodic re-authentication . . . . . . . . . . . . . . . . . . .175

Re-authenticating a port manually . . . . . . . . . . . . . . . . . . . . . . 176

Setting the quiet period. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176

Specifying the wait interval and number of EAP-request/

identity frame retransmissions from the Brocade device . . . . 176

Wait interval and number of EAP-request/

identity frame retransmissions from the RADIUS server . . . .177

Specifying a timeout for retransmission of messages

to the authentication server . . . . . . . . . . . . . . . . . . . . . . . . . . .178

Initializing 802.1X on a port . . . . . . . . . . . . . . . . . . . . . . . . . . .178

Allowing access to multiple hosts . . . . . . . . . . . . . . . . . . . . . . .179

MAC address filters for EAP frames . . . . . . . . . . . . . . . . . . . . .182

Configuring VLAN access for non-EAP-capable clients . . . . . .182

802.1X accounting configuration. . . . . . . . . . . . . . . . . . . . . . . . . . .182

802.1X accounting attributes for RADIUS . . . . . . . . . . . . . . . .183

Enabling 802.1X accounting . . . . . . . . . . . . . . . . . . . . . . . . . . .183

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Displaying 802.1X information. . . . . . . . . . . . . . . . . . . . . . . . . . . . .184

Displaying 802.1X configuration information . . . . . . . . . . . . .184

Displaying 802.1X statistics . . . . . . . . . . . . . . . . . . . . . . . . . . .187

Clearing 802.1X statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . .188

Displaying dynamically assigned VLAN information . . . . . . . .188

Displaying information about dynamically applied

MAC address filters and IP ACLs. . . . . . . . . . . . . . . . . . . . . . . .189

Displaying 802.1X multiple-host

authentication information . . . . . . . . . . . . . . . . . . . . . . . . . . . .191

Sample 802.1X configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . .196

Point-to-point configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . .196

Hub configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .197

802.1X authentication with dynamic VLAN assignment . . . . .198

Multi-device port authentication and 802.1X

security on the same port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .199

Chapter 7 MAC Port Security

MAC port security overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .202

Local and global resources used for MAC port security . . . . .202

Configuration notes and feature limitations

for MAC port security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .202

MAC port security configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . .203

Enabling the MAC port security feature . . . . . . . . . . . . . . . . . .203

Setting the maximum number of secure

MAC addresses for an interface . . . . . . . . . . . . . . . . . . . . . . . .204

Setting the port security age timer . . . . . . . . . . . . . . . . . . . . . .204

Specifying secure MAC addresses . . . . . . . . . . . . . . . . . . . . . .205

Autosaving secure MAC addresses to the

startup configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205

Specifying the action taken when a security

violation occurs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .206

Clearing port security statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . .207

Clearing restricted MAC addresses. . . . . . . . . . . . . . . . . . . . . .207

Clearing violation statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . .207

Displaying port security information . . . . . . . . . . . . . . . . . . . . . . . .208

Displaying port security settings . . . . . . . . . . . . . . . . . . . . . . . .208

Displaying the secure MAC addresses . . . . . . . . . . . . . . . . . . .208

Displaying port security statistics . . . . . . . . . . . . . . . . . . . . . . .209

Displaying restricted MAC addresses on a port . . . . . . . . . . . .210

Chapter 8 MAC-based VLANs

MAC-based VLAN overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211

Static and dynamic hosts . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211

MAC-based VLAN feature structure . . . . . . . . . . . . . . . . . . . . .212

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Dynamic MAC-based VLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .213

Configuration notes and feature limitations

for dynamic MAC-based VLAN . . . . . . . . . . . . . . . . . . . . . . . . . .213

Dynamic MAC-based VLAN CLI commands . . . . . . . . . . . . . . .213

Dynamic MAC-based VLAN configuration example . . . . . . . . .214

MAC-based VLAN configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . .215

Using MAC-based VLANs and 802.1X security

on the same port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .216

Configuring generic and Brocade vendor-specific

attributes on the RADIUS server . . . . . . . . . . . . . . . . . . . . . . . .216

Aging for MAC-based VLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217

Disabling aging for MAC-based VLAN sessions . . . . . . . . . . . .218

Configuring the maximum MAC addresses per port . . . . . . . .219

Configuring a MAC-based VLAN for a static host . . . . . . . . . . .219

Configuring MAC-based VLAN for a dynamic host . . . . . . . . . .220

Configuring dynamic MAC-based VLAN . . . . . . . . . . . . . . . . . .220

Configuring MAC-based VLANs using SNMP . . . . . . . . . . . . . . . . . .221

Displaying information about MAC-based VLANs . . . . . . . . . . . . . .221

Displaying the MAC-VLAN table. . . . . . . . . . . . . . . . . . . . . . . . .221

Displaying the MAC-VLAN table for a specific MAC address . .222

Displaying allowed MAC addresses . . . . . . . . . . . . . . . . . . . . .222

Displaying denied MAC addresses . . . . . . . . . . . . . . . . . . . . . .223

Displaying detailed MAC-VLAN data . . . . . . . . . . . . . . . . . . . . .224

Displaying MAC-VLAN information for a specific interface . . .225

Displaying MAC addresses in a MAC-based VLAN . . . . . . . . . .226

Displaying MAC-based VLAN logging . . . . . . . . . . . . . . . . . . . .227

Clearing MAC-VLAN information . . . . . . . . . . . . . . . . . . . . . . . . . . . .227

Sample MAC-based VLAN application . . . . . . . . . . . . . . . . . . . . . . .227

Chapter 9 Multi-Device Port Authentication

How multi-device port authentication works. . . . . . . . . . . . . . . . . .231

RADIUS authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .232

Authentication-failure actions . . . . . . . . . . . . . . . . . . . . . . . . . .232

Supported RADIUS attributes . . . . . . . . . . . . . . . . . . . . . . . . . .232

Support for dynamic VLAN assignment . . . . . . . . . . . . . . . . . .233

Support for dynamic ACLs . . . . . . . . . . . . . . . . . . . . . . . . . . . . .233

Support for authenticating multiple MAC addresses

on an interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .233

Support for dynamic ARP inspection with dynamic ACLs . . . .233

Support for DHCP snooping with dynamic ACLs . . . . . . . . . . .234

Support for source guard protection. . . . . . . . . . . . . . . . . . . . .234

Multi-device port authentication and 802.1X

security on the same port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .234

Configuring Brocade-specific attributes on the

RADIUS server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .235

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