
Chapter 9
| General Security Measures
DHCPv6 Snooping
– 326 –
Example
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 keep
Console(config)#
ipv6 dhcp snooping
vlan
This command enables DHCPv6 snooping on the specified VLAN. Use the
no
form
to restore the default setting.
Syntax
[
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.
Default Setting
Disabled
Command Mode
Global Configuration
Command Usage
◆
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.
Example
This example enables DHCP6 snooping for VLAN 1.
Console(config)#ipv6 dhcp snooping vlan 1
Console(config)#
Related Commands
Содержание ECS4120-28F
Страница 36: ...Contents 36...
Страница 38: ...Figures 38...
Страница 46: ...Section I Getting Started 46...
Страница 70: ...Chapter 1 Initial Switch Configuration Setting the System Clock 70...
Страница 86: ...Chapter 2 Using the Command Line Interface CLI Command Groups 86...
Страница 202: ...Chapter 5 SNMP Commands Additional Trap Commands 202...
Страница 210: ...Chapter 6 Remote Monitoring Commands 210...
Страница 216: ...Chapter 7 Flow Sampling Commands 216...
Страница 278: ...Chapter 8 Authentication Commands PPPoE Intermediate Agent 278...
Страница 360: ...Chapter 9 General Security Measures Port based Traffic Segmentation 360...
Страница 384: ...Chapter 10 Access Control Lists ACL Information 384...
Страница 424: ...Chapter 11 Interface Commands Power Savings 424...
Страница 446: ...Chapter 13 Power over Ethernet Commands 446...
Страница 456: ...Chapter 14 Port Mirroring Commands RSPAN Mirroring Commands 456...
Страница 488: ...Chapter 17 UniDirectional Link Detection Commands 488...
Страница 494: ...Chapter 18 Address Table Commands 494...
Страница 554: ...Chapter 20 ERPS Commands 554...
Страница 620: ...Chapter 22 Class of Service Commands Priority Commands Layer 3 and 4 620...
Страница 638: ...Chapter 23 Quality of Service Commands 638...
Страница 772: ...Chapter 25 LLDP Commands 772...
Страница 814: ...Chapter 26 CFM Commands Delay Measure Operations 814...
Страница 826: ...Chapter 27 OAM Commands 826 1 1 00 12 CF 6A 07 F6 000084 Enabled Disabled Enabled Disabled Console...
Страница 836: ...Chapter 28 Domain Name Service Commands 836...
Страница 848: ...Chapter 29 DHCP Commands DHCP Relay Option 82 848...
Страница 902: ...Section III Appendices 902...
Страница 916: ...Glossary 916...
Страница 926: ...CLI Commands 926...
Страница 937: ......
Страница 938: ...E092017 CS R02...