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Dynamic ARP inspection configuration............................................. 334
Displaying ARP inspection status and ports..................................... 335
Displaying the ARP table ................................................................. 335
Multi-VRF support............................................................................. 336
DHCP snooping............................................................................................ 336
How DHCP snooping works..............................................................337
System reboot and the binding database..........................................338
Configuration notes and feature limitations for DHCP snooping.......338
Configuring DHCP snooping............................................................. 339
Clearing the DHCP binding database............................................... 340
Displaying DHCP snooping status and ports.................................... 340
Displaying the DHCP snooping binding database............................ 340
Displaying DHCP binding entry and status....................................... 340
DHCP snooping configuration example ........................................... 341
Multi-VRF support............................................................................. 341
DHCP relay agent information ..................................................................... 342
Configuration notes for DHCP option 82...........................................343
DHCP Option 82 sub-options............................................................344
DHCP option 82 configuration...........................................................345
Viewing information about DHCP option 82 processing................... 347
Configuring the source IP address of a DHCP-client packet on
the DHCP relay agent..................................................................349
IP source guard.............................................................................................349
Configuration notes and feature limitations for IP source guard....... 349
Enabling IP source guard on a port...................................................351
Defining static IP source bindings..................................................... 351
Enabling IP source guard per-port-per-VLAN................................... 351
Enabling IP source guard on a VE.................................................... 351
Enabling IP Source Guard to support a Multi-VRF instance............. 352
Displaying learned IP addresses.......................................................352
DHCPv6................................................................................................................................355
Supported DHCPv6 packet inspection and tracking features....................... 355
Securing IPv6 address configuration............................................................ 355
DHCPv6 snooping.........................................................................................355
How DHCPv6 snooping works.......................................................... 356
Configuration notes and feature limitations for DHCPv6 snooping... 357
Configuring DHCPv6 snooping......................................................... 357
Clearing the DHCPv6 binding database........................................... 358
Displaying DHCPv6 snooping status and ports ............................... 358
Displaying the DHCPv6 snooping binding database ........................359
DHCPv6 snooping configuration example ....................................... 359
Multi-VRF support for DHCPv6 snooping......................................... 359
IPv6 RA Guard.......................................................................................................................361
Supported platforms for the IPv6 RA guard feature...................................... 361
Securing IPv6 address configuration............................................................ 361
IPv6 RA guard overview................................................................................361
RA guard policy.................................................................................362
Whitelist.............................................................................................362
Prefix list............................................................................................362
Maximum preference........................................................................ 362
Trusted, untrusted, and host ports.................................................... 362
Configuration notes and feature limitations for IPv6 RA guard..................... 363
Configuring IPv6 RA guard........................................................................... 363
Example of configuring IPv6 RA guard......................................................... 364
FastIron Ethernet Switch Security Configuration Guide
11
53-1003088-03
- FastIron Ethernet Switch 1
- Contents 3
- 53-1003088-03 10
- Document conventions 13
- Notes, cautions, and warnings 14
- Brocade resources 15
- Getting technical help 15
- Document feedback 16
- About This Document 17
- Security Access 19
- Securing access methods 20
- Remote access restrictions 25
- Restricting Telnet connection 26
- Defining the Telnet idle time 27
- Device management security 30
- Disabling Telnet access 31
- Disabling SNMP access 31
- Disabling TFTP access 31
- Setting a Telnet password 32
- Local user accounts 35
- Enabling user password aging 38
- Configuring password history 38
- Enhanced login lockout 39
- Setting passwords to expire 39
- TACACS and TACACS+ security 42
- TACACS authentication 44
- TACACS+ authorization 45
- TACACS+ accounting 45
- Configuring TACACS 47
- Configuring TACACS+ 47
- Enabling TACACS 48
- Setting the TACACS+ key 49
- Setting the timeout parameter 50
- RADIUS security 58
- RADIUS accounting 59
- AAA operations for RADIUS 59
- Configuring RADIUS 61
- RADIUS server per port 64
- RADIUS parameters 66
- Setting RADIUS over IPv6 67
- RADIUS authorization 69
- SSL security 73
- Authentication-method lists 75
- SSH2 and SCP 81
- Tested SSH2 clients 82
- SSH2 supported features 82
- SSH2 authentication types 83
- Optional SSH parameters 88
- Setting the SSH port number 89
- Displaying SSH information 90
- Secure copy with SSH2 93
- SSH2 client 96
- Enabling SSH2 client 97
- Using SSH2 client 98
- Rule-Based IP ACLs 101
- ACL overview 103
- Types of IP ACLs 104
- ACL IDs and entries 104
- Numbered and named ACLs 105
- Default ACL action 105
- How hardware-based ACLs work 106
- Standard numbered ACL syntax 108
- Standard named ACL syntax 109
- Extended numbered ACL syntax 112
- Extended named ACL syntax 118
- ACL comment text management 123
- Viewing comments in an ACL 124
- ACL logging 126
- Displaying ACL Log Entries 128
- ACLs to filter ARP packets 132
- Clearing the filter count 134
- QoS options for IP ACLs 135
- ACL-based rate limiting 140
- ACL statistics 140
- ACL accounting 141
- Displaying ACL information 143
- Troubleshooting ACLs 144
- Policy-based routing (PBR) 144
- Configuring a PBR policy 145
- Configuring the ACLs 145
- Configuring the route map 147
- Enabling PBR 148
- Setting the next hop 149
- IPv6 ACLs 153
- IPv6 ACL configuration notes 155
- Configuring an IPv6 ACL 156
- Creating an IPv6 ACL 158
- For ICMP 159
- ICMP message configurations 163
- Support for ACL logging 166
- Displaying IPv6 ACLs 168
- 802.1X Port Security 169
- IETF RFC support 170
- Setting the IP MTU size 175
- EAP pass-through support 176
- 802.1X accounting 180
- Setting RADIUS parameters 181
- Supported RADIUS attributes 182
- Re-authenticate a user 183
- Specifying an untagged VLAN 185
- Specifying a tagged VLAN 185
- Disabled strict security mode 188
- Enabling 802.1X port security 191
- Setting the port control 191
- Setting the quiet period 193
- Initializing 802.1X on a port 195
- Displaying 802.1X information 200
- Syntax: show dot1x 201
- Displaying 802.1X statistics 205
- Clearing 802.1X statistics 206
- Sample 802.1X configurations 210
- Point-to-point configuration 211
- Hub configuration 212
- MAC Port Security 217
- Secure MAC movement 219
- On an untagged interface 221
- On a tagged interface 221
- Clearing violation statistics 223
- MAC-based VLANs 227
- Static and dynamic hosts 228
- Dynamic MAC-based VLAN 229
- MAC-based VLAN configuration 231
- RADIUS server 232
- Aging for MAC-based VLAN 233
- For blocked hosts 234
- Globally disabling aging 234
- Displaying the MAC-VLAN table 237
- Clearing MAC-VLAN information 243
- Defining MAC Address Filters 247
- RADIUS authentication 255
- Unauthenticated port behavior 255
- Support for dynamic ACLs 256
- Defining MAC address filters 261
- MAC address or port 275
- MAC addresses 277
- Web Authentication 291
- Using local user databases 296
- Creating static passcodes 300
- Automatic authentication 304
- Specifying trusted ports 305
- Filtering DNS queries 308
- Web authentication pages 310
- Customizing the title bar 315
- Customizing the header 316
- Customizing the text box 316
- Customizing the login button 317
- Customizing the footer 317
- Displaying passcodes 321
- DoS Attack Protection 323
- TCP SYN attacks 326
- TCP security enhancement 327
- Dynamic ARP inspection 331
- About Dynamic ARP Inspection 332
- ARP entries 333
- Displaying the ARP table 335
- DHCP snooping 336
- How DHCP snooping works 337
- Configuring DHCP snooping 339
- Multi-VRF support 341
- DHCP relay agent information 342
- DHCP Option 82 sub-options 344
- DHCP option 82 configuration 345
- IP source guard 349
- DHCPv6 snooping 355
- How DHCPv6 snooping works 356
- Configuring DHCPv6 snooping 357
- IPv6 RA Guard 361
- RA guard policy 362
- Whitelist 362
- Prefix list 362
- Maximum preference 362
- Configuring IPv6 RA guard 363
- Configuring port A: 365
- Configuring port C: 365
- Configuring port B: 365
- Security Commands 367
- 802.1x port security 385
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