
C
HAPTER
25
| General Security Measures
DHCPv6 Snooping
– 931 –
C
OMMAND
U
SAGE
When the switch receives DHCPv6 packets from clients that already include
DHCP Option 37 information, the switch can be configured to set the action
policy for these packets. The switch can either drop the DHCPv6 packets,
keep the existing information, or replace it with the switch’s relay agent
information.
E
XAMPLE
This example configures the switch to keep existing remote-id option 37
information within DHCPv6 client packets and forward it.
Console(config)#ipv6 dhcp snooping option remote-id policy replace
Console(config)#
ipv6 dhcp snooping
vlan
This command enables DHCPv6 snooping on the specified VLAN. Use the
no
form to restore the default setting.
S
YNTAX
[
no
]
ipv6 dhcp snooping vlan
{
vlan-id
|
vlan-range
}
vlan-id
- ID of a configured VLAN (Range: 1-4094)
vlan-range
- A consecutive range of VLANs indicated by the use a
hyphen, or a random group of VLANs with each entry separated by
a comma.
D
EFAULT
S
ETTING
Disabled
C
OMMAND
M
ODE
Global Configuration
C
OMMAND
U
SAGE
◆
When DHCPv6 snooping enabled globally using the
command, and enabled on a VLAN with this command, DHCPv6 packet
filtering will be performed on any untrusted ports within the VLAN as
specified by the
command.
◆
When the DHCPv6 snooping is globally disabled, DHCPv6 snooping can
still be configured for specific VLANs, but the changes will not take
effect until DHCPv6 snooping is globally re-enabled.
◆
When DHCPv6 snooping is enabled globally, and then disabled on a
VLAN, all dynamic bindings learned for this VLAN are removed from the
binding table.
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...