
C
HAPTER
14
| Security Measures
DHCP Snooping
– 360 –
W
EB
I
NTERFACE
To configure global settings for DHCP Snooping:
1.
Click Security, DHCP Snooping.
2.
Select Configure VLAN from the Step list.
3.
Enable DHCP Snooping on any existing VLAN.
4.
Click Apply
Figure 202: Configuring DHCP Snooping on a VLAN
C
ONFIGURING
P
ORTS
FOR
DHCP S
NOOPING
Use the IP Service > DHCP > Snooping (Configure Interface) page to
configure switch ports as trusted or untrusted.
CLI R
EFERENCES
◆
"ip dhcp snooping trust" on page 680
C
OMMAND
U
SAGE
◆
A trusted interface is an interface that is configured to receive only
messages from within the network. An untrusted interface is an
interface that is configured to receive messages from outside the
network or fire wall.
◆
When DHCP snooping is enabled both globally and on a VLAN, DHCP
packet filtering will be performed on any untrusted ports within the
VLAN.
◆
When an untrusted port is changed to a trusted port, all the dynamic
DHCP snooping bindings associated with this port are removed.
◆
Set all ports connected to DHCP servers within the local network or fire
wall to trusted state. Set all other ports outside the local network or fire
wall to untrusted state.
P
ARAMETERS
These parameters are displayed:
◆
Trust Status
– Enables or disables a port as trusted.
(Default: Disabled)
Summary of Contents for ES3510MA-DC
Page 1: ...Management Guide www edge core com 8 Port Layer 2 Fast Ethernet Switch...
Page 2: ......
Page 4: ......
Page 6: ...ABOUT THIS GUIDE 6...
Page 44: ...FIGURES 44...
Page 50: ...TABLES 50...
Page 52: ...SECTION I Getting Started 52...
Page 62: ...CHAPTER 1 Introduction System Defaults 62...
Page 80: ...CHAPTER 2 Initial Switch Configuration Managing System Files 80...
Page 82: ...SECTION II Web Configuration 82...
Page 98: ...CHAPTER 3 Using the Web Interface Navigating the Web Browser Interface 98...
Page 126: ...CHAPTER 4 Basic Management Tasks Resetting the System 126...
Page 164: ...CHAPTER 5 Interface Configuration VLAN Trunking 164 Figure 57 Configuring VLAN Trunking...
Page 202: ...CHAPTER 7 Address Table Settings Configuring MAC Address Mirroring 202...
Page 452: ...CHAPTER 17 IP Services Displaying the DNS Cache 452...
Page 498: ...CHAPTER 19 Using the Command Line Interface CLI Command Groups 498...
Page 588: ...CHAPTER 22 SNMP Commands 588...
Page 596: ...CHAPTER 23 Remote Monitoring Commands 596...
Page 650: ...CHAPTER 24 Authentication Commands Management IP Filter 650...
Page 738: ...CHAPTER 27 Interface Commands 738...
Page 760: ...CHAPTER 29 Port Mirroring Commands RSPAN Mirroring Commands 760...
Page 782: ...CHAPTER 32 Address Table Commands 782...
Page 810: ...CHAPTER 33 Spanning Tree Commands 810...
Page 862: ...CHAPTER 35 VLAN Commands Configuring Voice VLANs 862...
Page 876: ...CHAPTER 36 Class of Service Commands Priority Commands Layer 3 and 4 876...
Page 932: ...CHAPTER 38 Multicast Filtering Commands Multicast VLAN Registration 932...
Page 956: ...CHAPTER 39 LLDP Commands 956...
Page 1020: ...CHAPTER 42 Domain Name Service Commands 1020...
Page 1026: ...CHAPTER 43 DHCP Commands DHCP Client 1026...
Page 1058: ...CHAPTER 44 IP Interface Commands IPv6 Interface 1058...
Page 1060: ...SECTION IV Appendices 1060...
Page 1066: ...APPENDIX A Software Specifications Management Information Bases 1066...
Page 1088: ...COMMAND LIST 1088...
Page 1097: ......