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14 Multi-Service IronWare Security Configuration Guide
53-1003035-02
Restricting remote access to management functions
1
Enabling Telnet access
Telnet access is disabled by default. You can use a Telnet client to access the CLI on the device
over the network.
To enable Telnet operation, enter the following command.
Brocade(config)# telnet server
If you do not plan to use the CLI over the network and want to disable Telnet access to prevent
others from establishing CLI sessions with the device, enter the following command.
Brocade(config)# no telnet server
Syntax: [no] telnet-server
Enabling Web management access for a Brocade device
Web Management is disabled by default. You can enable it through HTTP or HTTPS as described in
the following sections.
NOTE
The Web Management Interface is only supported on the Brocade NetIron XMR and Brocade MLX
series devices
Web management through HTTP
To allow web management through HTTP for a Brocade device, you enable web management as
shown in the following command.
Brocade(config)# web-management
Syntax: [no] web-management [http | https]
Using the web-management command without the http or https option makes web management
available for both.
The http option specifies that web management is enabled for HTTP access.
The https option specifies that web management is enabled for HTTPS access.
Web management through HTTPS
The following encryption cipher algorithm are supported for HTTPS. They are listed in order of
preference:
• aes256-cbc: AES in CBC mode with 256-bit key
• aes192-cbc: AES in CBC mode with 192-bit key
• aes128-cbc: AES in CBC mode with 128-bit key
• 3des-cbc: Triple-DES
• rc4-des: RC4 DES
To allow web management through HTTPS for a Brocade device you must enable web management
as shown in “Web management through HTTP”. Additionally, you must generate a crypto SSL
certificate or import digital certificates issued by a third-party Certificate Authority (CA).
To generate a crypto SSL certificate use the following command.
Brocade(config)# crypto-ssl certificate generate
- Multi-Service IronWare 1
- Document History 2
- Contents 3
- Chapter 3 Access Control List 6
- 53-1003035-02 10
- About This Document 13
- Supported software 14
- Document conventions 15
- Notice to the reader 16
- Related publications 16
- In this chapter 17
- Securing access methods 21
- Example 25
- • SSH access 28
- • Telnet access 28
- • Web management access 28
- • SNMP access 28
- Defining the Telnet idle time 29
- • TFTP access 30
- Enabling Telnet access 32
- HP ProCurve Manager 33
- Enabling SNMP access 33
- Setting passwords 34
- Disabling password encryption 38
- Regular password rules 40
- Strict password rules 41
- Password history 42
- Setting passwords to expire 42
- Login lockout 43
- Web interface login lockout 44
- Management Interface 45
- Generating an SSL certificate 46
- TACACS authentication 48
- TACACS+ authentication 48
- TACACS+ authorization 48
- TACACS+ accounting 49
- TACACS functions 53
- Setting the TACACS+ key 54
- TACACS or TACACS+ 55
- Telnet or SSH login 56
- Example 3: 57
- Example 4: 57
- Example 1: 57
- (shell) access 61
- TACACS or TACACS+ packets 62
- Configuring RADIUS security 67
- • A list of commands 68
- RADIUS authorization 69
- RADIUS accounting 69
- AAA operations for RADIUS 70
- AAA functions 75
- Radius health check 76
- Setting the RADIUS key 78
- Setting the timeout parameter 78
- Configuring RADIUS accounting 82
- RADIUS packets 83
- Method parameter Description 89
- Layer 2 Access Control Lists 91
- Configuration rules and notes 92
- Types of Layer-2 ACLs 93
- Brocade(config)# acl-policy 94
- Filtering broadcast traffic 101
- Using the priority option 101
- ACL accounting 105
- Displaying Layer-2 ACLs 106
- MLX series devices 107
- permit vlan 3000 ip any any 108
- NetIron CER devices 109
- Access Control List 111
- Brocade NetIron CES and 115
- Brocade NetIron CER 115
- Default ACL action 116
- Types of IP ACLs 117
- ACL IDs and entries 117
- Standard ACL syntax 121
- Brocade(config)# int eth 1/1 123
- Brocade(config)# write memory 123
- Extended ACL syntax 126
- ACL entry 127
- Displaying ACL definitions 136
- • 1 – 99 for standard ACLs 137
- VLAN Accounting 138
- Modifying ACLs 139
- Adding or deleting a comment 141
- Applying ACLs to interfaces 143
- Enabling ACL conflict check 146
- Named ACLs 147
- Layer-4 information in an ACL 148
- 802.1p priority 153
- Numbered ACLs 155
- IP broadcast ACL 158
- Field Description 161
- IP broadcast ACL CAM 162
- IP receive ACLs 164
- Configuring rACLs 165
- 20 x 1G PPCR 1 1 - 20 170
- 4 x 10G PPCR 1 1 - 2 170
- PPCR 2 3 - 4 170
- 2 x 10G PPCR 1 1 - 2 170
- ACL deny logging 171
- • Enabling the Log Option 173
- Configuring the log timer 174
- Support for ACL CAM sharing 174
- This field... Displays 177
- Commands 179
- Release Command History 180
- Output field Description 187
- Configuring an IPv6 ACL 194
- Example configurations 195
- Deleting an IPv6 ACL entry 199
- ACL syntax 199
- TABLE 25 Syntax descriptions 200
- For ICMP 202
- TABLE 26 Syntax descriptions 204
- TABLE 27 Syntax descriptions 207
- Extended IPv6 ACLs 214
- CER devices 215
- CAM partitioning 224
- Applying an IPv6 ACL 224
- Reapplying modified IPv6 ACLs 225
- Clearing the ACL statistics 234
- IPv6 receive ACLs 235
- • IPv6 Multicast 236
- • Receive ACL 236
- • Rule-based ACL 236
- SSH server version 2 support 256
- Supported SSHv2 clients 257
- Supported features 257
- Configuring SSH server 258
- Syntax: show ip ssh config 259
- Generating a host key pair 260
- Brocade# ssh show-host-keys 261
- Device Low High Average 264
- Setting optional parameters 267
- Disabling 3-DES 270
- Outbound SSHv2 client 272
- Enabling SSHv2 client 273
- Using an SSH2 client 274
- Using Secure Copy 276
- • isis metric command 277
- • set-overload-bit command 277
- • admin-group 277
- • cspf-group 277
- • bypass-lsp 277
- Outbound commands: 278
- Inbound commands: 278
- RADIUS authentication 288
- Supported RADIUS attributes 289
- Setting RADIUS parameters 291
- Defining MAC address filters 293
- MAC address or port 300
- Overview 303
- Local and global resources 304
- Configuring port security 308
- IETF RFC support 314
- 802.1x ports 323
- Value Description 326
- RADIUS server 326
- Setting the port control 328
- Brocade(config)#dot1x-enable 329
- Setting the quiet period 330
- Initializing 802.1x on a port 332
- Displaying 802.1x information 333
- Displaying 802.1x statistics 336
- Clearing 802.1x statistics 337
- Sample 802.1x configurations 341
- Hub configuration 343
- TCP security enhancement 349
- Clear DoS attack statistics 352
- Securing SNMP Access 353
- • Modification of information 355
- • Message stream modification 355
- • Disclosure of information 355
- Configuring your NMS 356
- Defining the engine ID 356
- Defining an SNMP group 357
- Defining an SNMP user account 358
- Displaying the engine ID 359
- Displaying SNMP groups 360
- Displaying user information 360
- Defining SNMP views 362
- Simple SNMP v3 configuration 363
- Background 365
- Sequence Numbers 366
- Creating an ACL filter 367
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