Brocade Multi-Service IronWare Security Configuration Guid Manual de usuario descargar pdf (Pagina 11)

Multi-Service IronWare Security Configuration Guide xi

53-1003035-02

Configuring 802.1x port security . . . . . . . . . . . . . . . . . . . . . . . . . . .303

Configuring an authentication method list

for 802.1x . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .304

Setting RADIUS parameters . . . . . . . . . . . . . . . . . . . . . . . . . . .304

Configuring dynamic VLAN assignment for

802.1x ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .305

Disabling and enabling strict security mode for

dynamic filter assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . .306

Dynamically applying existing ACLs or MAC

address filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .308

Configuring per-user IP ACLs or MAC address filters. . . . . . . .309

Enabling 802.1x port security . . . . . . . . . . . . . . . . . . . . . . . . . .310

Setting the port control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310

Configuring periodic re-authentication . . . . . . . . . . . . . . . . . . .311

Re-authenticating a port manually . . . . . . . . . . . . . . . . . . . . . .312

Setting the quiet period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .312

Setting the interval for retransmission of

EAP-request or identity frames . . . . . . . . . . . . . . . . . . . . . . . . .312

Specifying the number of EAP-request or

identity frame retransmissions . . . . . . . . . . . . . . . . . . . . . . . . .313

Specifying a timeout for retransmission of messages

to the Authentication Server . . . . . . . . . . . . . . . . . . . . . . . . . . .313

Specifying a timeout for retransmission of

EAP-request frames to the client . . . . . . . . . . . . . . . . . . . . . . .313

Initializing 802.1x on a port . . . . . . . . . . . . . . . . . . . . . . . . . . .314

Allowing multiple 802.1x clients to authenticate. . . . . . . . . . . 314

Displaying 802.1x information . . . . . . . . . . . . . . . . . . . . . . . . . . . . .315

Displaying 802.1x configuration information. . . . . . . . . . . . . .315

Displaying 802.1x statistics . . . . . . . . . . . . . . . . . . . . . . . . . . .318

Clearing 802.1x statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . .319

Displaying dynamically assigned VLAN information . . . . . . . .320

Displaying information on MAC address filters

and IP ACLs on an interface . . . . . . . . . . . . . . . . . . . . . . . . . . .320

Displaying information about the dot1x-mac-sessions

on each port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .322

Sample 802.1x configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . .323

Point-to-point configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . .323

Hub configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .325

Chapter 9 Protecting against Denial of Service Attacks

Protecting against smurf attacks . . . . . . . . . . . . . . . . . . . . . . . . . . .327

Avoiding being an intermediary in a smurf attack . . . . . . . . . .328

Avoiding being a victim in a smurf attack . . . . . . . . . . . . . . . .328

Protecting against TCP SYN attacks . . . . . . . . . . . . . . . . . . . . . . . .330

TCP security enhancement . . . . . . . . . . . . . . . . . . . . . . . . . . . .331

Protecting against UDP attacks . . . . . . . . . . . . . . . . . . . . . . . .332

Enhanced DOS attack prevention for IPv6. . . . . . . . . . . . . . . .333

Displaying statistics from a DoS attack . . . . . . . . . . . . . . . . . . . . . .334

Clear DoS attack statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .334

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