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NOTE:
The 802.1X user authentication applied in this example is for single
supplicants. Single-secure supplicant mode and multiple supplicant mode
do not work with IP source guard. For more information about 802.1X
authentication, see “Understanding Authentication on J-EX Series Switches”
on page 2248.
TIP:
You can set the
ip-source-guard
flag in the
statement for
debugging purposes.
This example shows how to configure a static IP address to be added to the
DHCP snooping database.
Configuration
CLI Quick
Configuration
To quickly configure IP source guard on a data VLAN, copy the following commands and
paste them into the switch terminal window:
set ethernet-switching-options voip interface ge-0/0/14.0 vlan voice
set ethernet-switching-options secure-access-port interface ge-0/0/24.0 dhcp-trusted
set ethernet-switching-options secure-access-port interface ge-0/0/14 static-ip 11.1.1.1 mac
00:11:11:11:11:11 vlan data
set ethernet-switching-options secure-access-port vlan data examine-dhcp
set ethernet-switching-options secure-access-port vlan data ip-source-guard
set interfaces ge-0/0/24 unit 0 family ethernet-switching vlan members data
set vlans voice vlan-id 100
set protocols lldp-med interface ge-0/0/14.0
set protocols dot1x authenticator authentication-profile-name profile52
set protocols dot1x authenticator interface ge-0/0/14.0 supplicant single
Step-by-Step
Procedure
To configure IP source guard on the data VLAN:
1.
Configure the VoIP interface:
[edit ethernet-switching-options]
user@switch#
set voip interface ge-0/0/14.0 vlan voice
2.
Configure the interface on which the DHCP server is connected to the switch as a
trusted interface and add that interface to the data VLAN:
[edit ethernet-switching-options]
user@switch#
set secure-access-port interface ge-0/0/24.0 dhcp-trusted
[edit interfaces]
user@switch#
set ge-0/0/24 unit 0 family ethernet-switching vlan members data
3.
Configure a static IP address on an interface on the data VLAN (optional)
[edit ethernet-switching-options]
user@switch#
set secure-access-port interface ge-0/0/14 static-ip 11.1.1.1 mac
00:11:11:11:11:11 vlan data
4.
Configure DHCP snooping and IP source guard on the data VLAN:
[edit ethernet-switching-options]
user@switch#
set secure-access-port vlan data examine-dhcp
user@switch#
set secure-access-port vlan data ip-source-guard
2610
Dell PowerConnect J-Series Ethernet Switch Complete Software Guide for Junos OS
Summary of Contents for PowerConnect J-EX8208
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Page 2215: ...CHAPTER 80 Operational Mode Commands for IGMP Snooping and Multicast 2143 ...
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