Contents
xxiii
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-21521-01
Configuring Flex Links 23-8
Configuring VLAN Load Balancing on Flex Links 23-10
Configuring the MAC Address-Table Move Update Feature 23-12
Monitoring Flex Links and the MAC Address-Table Move Update 23-14
CHAPTER
24 Configuring DHCP Features and IP Source Guard 24-1
Understanding DHCP Features 24-1
DHCP Server 24-2
DHCP Relay Agent 24-2
DHCP Snooping 24-2
Option-82 Data Insertion 24-3
Cisco IOS DHCP Server Database 24-6
DHCP Snooping Binding Database 24-6
DHCP Snooping and Switch Stacks 24-7
Configuring DHCP Features 24-8
Default DHCP Configuration 24-8
DHCP Snooping Configuration Guidelines 24-9
Configuring the DHCP Server 24-10
DHCP Server and Switch Stacks 24-10
Configuring the DHCP Relay Agent 24-11
Specifying the Packet Forwarding Address 24-11
Enabling DHCP Snooping and Option 82 24-12
Enabling DHCP Snooping on Private VLANs 24-14
Enabling the Cisco IOS DHCP Server Database 24-14
Enabling the DHCP Snooping Binding Database Agent 24-15
Displaying DHCP Snooping Information 24-16
Understanding IP Source Guard 24-16
Source IP Address Filtering 24-17
Source IP and MAC Address Filtering 24-17
IP Source Guard for Static Hosts 24-17
Configuring IP Source Guard 24-18
Default IP Source Guard Configuration 24-18
IP Source Guard Configuration Guidelines 24-18
Enabling IP Source Guard 24-19
Configuring IP Source Guard for Static Hosts 24-20
Configuring IP Source Guard for Static Hosts on a Layer 2 Access Port 24-20
Configuring IP Source Guard for Static Hosts on a Private VLAN Host Port 24-24
Displaying IP Source Guard Information 24-25
Understanding DHCP Server Port-Based Address Allocation 24-26
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