C
HAPTER
24
| General Security Measures
IPv4 Source Guard
– 926 –
IP
V
4 S
OURCE
G
UARD
IP Source Guard is a security feature that filters IPv4 traffic on network
interfaces based on manually configured entries in the IPv4 Source Guard
table, or dynamic entries in the DHCPv4 Snooping table when enabled (see
"DHCPv4 Snooping" on page 905
). IPv4 source guard can be used to
prevent traffic attacks caused when a host tries to use the IPv4 address of
a neighbor to access the network. This section describes commands used
to configure IPv4 Source Guard.
ip source-guard
binding
This command adds a static address to the source-guard ACL or MAC
address binding table. Use the
no
form to remove a static entry.
S
YNTAX
ip source-guard binding
[
mode
{
acl
|
mac
}]
mac-address
vlan
vlan-id ip-address
interface ethernet
unit/port
no
ip source-guard
binding
[
mode
{
acl
|
mac
}]
mac-address
vlan
vlan-id
mode
- Specifies the binding mode.
acl
- Adds binding to ACL table.
mac
- Adds binding to MAC address
mac-address
- A valid unicast MAC address.
vlan-id
- ID of a configured VLAN (Range: 1-4094)
ip-address
- A valid unicast IP address, including classful types A, B
or C.
unit
- Unit identifier. (Range: 1)
port
- Port number. (Range: 1-10)
Table 95: IPv4 Source Guard Commands
Command
Function
Mode
ip source-guard binding
Adds a static address to the source-guard binding
table
GC
ip source-guard
Configures the switch to filter inbound traffic based
on source IP address, or source IP address and
corresponding MAC address
IC
ip source-guard
max-binding
Sets the maximum number of entries that can be
bound to an interface
IC
ip source-guard mode
Sets the source-guard learning mode to search for
addresses in the ACL binding table or the MAC
address binding table
IC
clear ip source-guard
binding blocked
Remove all blocked records
IC
show ip source-guard
Shows whether source guard is enabled or disabled
on each interface
PE
show ip source-guard
binding
Shows the source guard binding table
PE
Summary of Contents for ECS3510-10PD
Page 1: ...Management Guide www edge core com 10 Port Layer 2 Fast Ethernet Switch...
Page 2: ......
Page 4: ......
Page 48: ...CONTENTS 48...
Page 68: ...SECTION I Getting Started 68...
Page 78: ...CHAPTER 1 Introduction System Defaults 78...
Page 96: ...CHAPTER 2 Initial Switch Configuration Managing System Files 96...
Page 98: ...SECTION II Web Configuration 98...
Page 118: ...CHAPTER 3 Using the Web Interface Navigating the Web Browser Interface 118...
Page 150: ...CHAPTER 4 Basic Management Tasks Resetting the System 150...
Page 196: ...CHAPTER 5 Interface Configuration VLAN Trunking 196 Figure 66 Configuring VLAN Trunking...
Page 238: ...CHAPTER 7 Address Table Settings Configuring MAC Address Mirroring 238...
Page 264: ...CHAPTER 8 Spanning Tree Algorithm Configuring Interface Settings for MSTP 264...
Page 274: ...CHAPTER 9 Congestion Control Automatic Traffic Control 274...
Page 288: ...CHAPTER 10 Class of Service Layer 3 4 Priority Settings 288...
Page 304: ...CHAPTER 11 Quality of Service Attaching a Policy Map to a Port 304...
Page 424: ...CHAPTER 13 Security Measures DHCP Snooping 424...
Page 568: ...CHAPTER 14 Basic Administration Protocols OAM Configuration 568...
Page 596: ...CHAPTER 15 IP Configuration Setting the Switch s IP Address IP Version 6 596...
Page 614: ...CHAPTER 1 IP Services Configuring the PPPoE Intermediate Agent 614...
Page 784: ...CHAPTER 20 System Management Commands Powered Device 784...
Page 814: ...CHAPTER 22 Remote Monitoring Commands 814...
Page 1008: ...CHAPTER 26 Interface Commands Power Savings 1008...
Page 1022: ...CHAPTER 27 Link Aggregation Commands Trunk Status Display Commands 1022...
Page 1052: ...CHAPTER 29 Congestion Control Commands Automatic Traffic Control Commands 1052...
Page 1064: ...CHAPTER 31 UniDirectional Link Detection Commands 1064...
Page 1070: ...CHAPTER 32 Address Table Commands 1070...
Page 1130: ...CHAPTER 34 ERPS Commands 1130...
Page 1172: ...CHAPTER 35 VLAN Commands Configuring Voice VLANs 1172...
Page 1186: ...CHAPTER 36 Class of Service Commands Priority Commands Layer 3 and 4 1186...
Page 1302: ...CHAPTER 38 Multicast Filtering Commands MVR for IPv6 1302...
Page 1368: ...CHAPTER 40 CFM Commands Delay Measure Operations 1368...
Page 1390: ...CHAPTER 42 Domain Name Service Commands 1390...
Page 1448: ...CHAPTER 44 IP Interface Commands ND Snooping 1448...
Page 1450: ...SECTION IV Appendices 1450...
Page 1455: ...APPENDIX A Software Specifications Management Information Bases 1455 UDP MIB RFC 2013...
Page 1456: ...APPENDIX A Software Specifications Management Information Bases 1456...
Page 1482: ...COMMAND LIST 1482...
Page 1493: ......