Cisco Catalyst 3560-X User Manual

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Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-25303-03
Chapter 1 Configuring DHCP Features and IP Source Guard
Configuring IP Source Guard
Configuring IP Source Guard for Static Hosts on a Layer 2 Access Port
Note You must configure the ip device tracking maximum limit-number interface configuration command
globally for IPSG for static hosts to work. If you only configure this command on a port without enabling
IP device tracking globally or by setting an IP device tracking maximum on that interface, IPSG with
static hosts rejects all the IP traffic from that interface. This requirement also applies to IPSG with static
hosts on a private VLAN host port.
Beginning in privileged EXEC mode:
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
ip device tracking Turn on the IP host table, and globally enable IP device
tracking.
Step 3
interface interface-id Enter interface configuration mode.
Step 4
switchport mode access Configure a port as access.
Step 5
switchport access vlan vlan-id Configure the VLAN for this port.
Step 6
ip verify source tracking port-security Enable IPSG for static hosts with MAC address filtering.
Note When you enable both IP source guard and port
security by using the ip verify source
port-security interface configuration command:
• The DHCP server must support option 82, or
the client is not assigned an IP address.
• The MAC address in the DHCP packet is not
learned as a secure address. The MAC address
of the DHCP client is learned as a secure
address only when the switch receives
non-DHCP data traffic.
Step 7
ip device tracking maximum number Establish a maximum limit for the number of static IPs
that the IP device tracking table allows on the port. The
range is 1to 10. The maximum number is 10.
Note You must configure the ip device tracking
maximum limit-number interface configuration
command.
Step 8
switchport port-security (Optional) Activate port security for this port.
Step 9
switchport port-security maximum value (Optional) Establish a maximum of MAC addresses for
this port.
Step 10
end Return to privileged EXEC mode.

Cisco Catalyst 3560-X Specifications

General

Enclosure Type	Rack-mountable - 1U
Subtype	Gigabit Ethernet
Ports	48 x 10/100/1000 + 4 x SFP
Flash Memory	64 MB
Power Device	Internal power supply
Voltage Required	AC 120/230 V (50/60 Hz)
Operating System	Cisco IOS
Device Type	Switch
Performance	Switching capacity: 128 Gbps
Jumbo Frame Support	Yes
Routing Protocol	RIP-1, RIP-2, EIGRP
Remote Management Protocol	SNMP 1, RMON 1, RMON 2, RMON 3, RMON 9, Telnet, SNMP 3, HTTP, HTTPS
Features	DHCP support, VLAN support, QoS, IPv6 support, Syslog
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3z, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3af, IEEE 802.3x, IEEE 802.3ad, IEEE 802.1w, IEEE 802.1x, IEEE 802.1s, IEEE 802.3ah, IEEE 802.1ag, IEEE 802.3at
Stacking	Stackable
Security Features	SSH, RADIUS, TACACS+
Management	CLI
Dimensions (H x W x D)	17.5 in
Operating Temperature	32 to 113 °F (0 to 45 °C)
Humidity	10 - 95% (non-condensing)