
C
HAPTER
13
| Security Measures
ARP Inspection
– 377 –
ARP Inspection Logging
◆
By default, logging is active for ARP Inspection, and cannot be disabled.
◆
The administrator can configure the log facility rate.
◆
When the switch drops a packet, it places an entry in the log buffer,
then generates a system message on a rate-controlled basis. After the
system message is generated, the entry is cleared from the log buffer.
◆
Each log entry contains flow information, such as the receiving VLAN,
the port number, the source and destination IP addresses, and the
source and destination MAC addresses.
◆
If multiple, identical invalid ARP packets are received consecutively on
the same VLAN, then the logging facility will only generate one entry in
the log buffer and one corresponding system message.
◆
If the log buffer is full, the oldest entry will be replaced with the newest
entry.
P
ARAMETERS
These parameters are displayed:
◆
ARP Inspection Status
– Enables ARP Inspection globally.
(Default: Disabled)
◆
ARP Inspection Validation
– Enables extended ARP Inspection
Validation if any of the following options are enabled.
(Default: Disabled)
■
Dst-MAC
– Validates the destination MAC address in the Ethernet
header against the target MAC address in the body of ARP
responses.
■
IP
– Checks the ARP body for invalid and unexpected IP addresses.
Sender IP addresses are checked in all ARP requests and responses,
while target IP addresses are checked only in ARP responses.
■
Allow Zeros
– Allows sender IP address to be 0.0.0.0.
■
Src-MAC
– Validates the source MAC address in the Ethernet
header against the sender MAC address in the ARP body. This check
is performed on both ARP requests and responses.
◆
Log Message Number
– The maximum number of entries saved in a
log message. (Range: 0-256; Default: 5)
◆
Log Interval
– The interval at which log messages are sent.
(Range: 0-86400 seconds; Default: 1 second)
Содержание ECS4110-28T
Страница 1: ...Management Guide www edge core com ECS4110 28T 28P 52T 52P 28 52 Port Gigabit Ethernet Layer 2 Switch...
Страница 2: ......
Страница 4: ......
Страница 63: ...FIGURES 63 Figure 428 Configuring VLAN Translation 1177...
Страница 64: ...FIGURES 64...
Страница 72: ...TABLES 72...
Страница 74: ...SECTION I Getting Started 74...
Страница 102: ...SECTION II Web Configuration 102 General IP Routing on page 679...
Страница 154: ...CHAPTER 4 Basic Management Tasks Resetting the System 154...
Страница 198: ...CHAPTER 5 Interface Configuration VLAN Trunking 198 Figure 65 Configuring VLAN Trunking...
Страница 272: ...CHAPTER 9 Congestion Control Automatic Traffic Control 272...
Страница 286: ...CHAPTER 10 Class of Service Layer 3 4 Priority Settings 286...
Страница 420: ...CHAPTER 13 Security Measures DHCP Snooping 420...
Страница 566: ...CHAPTER 14 Basic Administration Protocols OAM Configuration 566...
Страница 638: ...CHAPTER 15 Multicast Filtering Multicast VLAN Registration for IPv6 638...
Страница 662: ...CHAPTER 16 IP Configuration Setting the Switch s IP Address IP Version 6 662...
Страница 678: ...CHAPTER 17 IP Services Configuring the PPPoE Intermediate Agent 678...
Страница 792: ...CHAPTER 21 System Management Commands Switch Clustering 792...
Страница 822: ...CHAPTER 23 Remote Monitoring Commands 822...
Страница 888: ...CHAPTER 24 Authentication Commands PPPoE Intermediate Agent 888...
Страница 968: ...CHAPTER 25 General Security Measures Port based Traffic Segmentation 968...
Страница 994: ...CHAPTER 26 Access Control Lists ACL Information 994...
Страница 1034: ...CHAPTER 28 Link Aggregation Commands Trunk Status Display Commands 1034...
Страница 1044: ...CHAPTER 29 Power over Ethernet Commands 1044...
Страница 1084: ...CHAPTER 33 UniDirectional Link Detection Commands 1084...
Страница 1090: ...CHAPTER 34 Address Table Commands 1090...
Страница 1194: ...CHAPTER 37 VLAN Commands Configuring Voice VLANs 1194...
Страница 1388: ...CHAPTER 42 CFM Commands Delay Measure Operations 1388...
Страница 1410: ...CHAPTER 44 Domain Name Service Commands 1410...
Страница 1420: ...CHAPTER 45 DHCP Commands DHCP Relay 1420...
Страница 1472: ...CHAPTER 46 IP Routing Commands IPv4 Commands 1472...
Страница 1474: ...SECTION IV Appendices 1474...
Страница 1502: ...COMMAND LIST 1502...
Страница 1513: ......
Страница 1514: ...ECS4110 28T ECS4110 28P ECS4110 52T ECS4110 52P E072014 ST R02 150200000929A...