C
HAPTER
25
| General Security Measures
DHCPv6 Snooping
– 914 –
either drop, keep or remove option 37 information in incoming DCHPv6
packets. Packets are processed as follows:
■
If an incoming packet is a DHCPv6 request packet with option 37
information, it will modify the option 37 information according to
settings specified with
ipv6 dhcp snooping option remote-id policy
command.
■
If an incoming packet is a DHCPv6 request packet without option 37
information, enabling the DHCPv6 snooping information option will
add option 37 information to the packet.
■
If an incoming packet is a DHCPv6 reply packet with option 37
information, enabling the DHCPv6 snooping information option will
remove option 37 information from the packet.
◆
When this switch inserts Option 37 information in DHCPv6 client
request packets, the switch’s MAC address (hexadecimal) is used for
the remote ID.
E
XAMPLE
This example enables the DHCPv6 Snooping Remote-ID Option.
Console(config)#ipv6 dhcp snooping option remote-id
Console(config)#
R
ELATED
C
OMMANDS
show ipv6 dhcp snooping (918)
ipv6 dhcp snooping
option remote-id
policy
This command sets the remote-id option policy for DHCPv6 client packets
that include Option 37 information. Use the
no
form to disable this
function.
S
YNTAX
ipv6 dhcp snooping option remote-id policy
{
drop
|
keep
|
replace
}
no ipv6 dhcp snooping option remote-id policy
drop
- Drops the client’s request packet instead of relaying it.
keep
- Retains the Option 37 information in the client request, and
forwards the packets to trusted ports.
replace
- Replaces the Option 37 remote-ID in the client’s request
with the relay agent’s remote-ID (when DHCPv6 snooping is
enabled), and forwards the packets to trusted ports.
D
EFAULT
S
ETTING
drop
Содержание ES3528MV2
Страница 1: ...Management Guide www edge core com ES3528MV2 ES3528MV2 DC 28 Port Fast Ethernet Layer 2 Switch...
Страница 2: ......
Страница 4: ......
Страница 48: ...CONTENTS 48...
Страница 68: ...SECTION I Getting Started 68...
Страница 78: ...CHAPTER 1 Introduction System Defaults 78...
Страница 96: ...SECTION II Web Configuration 96...
Страница 116: ...CHAPTER 3 Using the Web Interface Navigating the Web Browser Interface 116...
Страница 148: ...CHAPTER 4 Basic Management Tasks Resetting the System 148...
Страница 192: ...CHAPTER 5 Interface Configuration VLAN Trunking 192 Figure 65 Configuring VLAN Trunking...
Страница 226: ...CHAPTER 6 VLAN Configuration Configuring VLAN Translation 226...
Страница 236: ...CHAPTER 7 Address Table Settings Configuring MAC Address Mirroring 236...
Страница 270: ...CHAPTER 9 Congestion Control Automatic Traffic Control 270...
Страница 300: ...CHAPTER 11 Quality of Service Attaching a Policy Map to a Port 300...
Страница 418: ...CHAPTER 13 Security Measures DHCP Snooping 418...
Страница 588: ...CHAPTER 15 IP Configuration Setting the Switch s IP Address IP Version 6 588...
Страница 606: ...CHAPTER 16 IP Services Configuring the PPPoE Intermediate Agent 606...
Страница 676: ...CHAPTER 17 Multicast Filtering Multicast VLAN Registration for IPv6 676...
Страница 772: ...CHAPTER 20 System Management Commands Switch Clustering 772...
Страница 802: ...CHAPTER 22 Remote Monitoring Commands 802...
Страница 808: ...CHAPTER 23 Flow Sampling Commands 808...
Страница 872: ...CHAPTER 24 Authentication Commands PPPoE Intermediate Agent 872...
Страница 950: ...CHAPTER 25 General Security Measures Port based Traffic Segmentation 950...
Страница 1002: ...CHAPTER 27 Interface Commands Power Savings 1002...
Страница 1016: ...CHAPTER 28 Link Aggregation Commands Trunk Status Display Commands 1016...
Страница 1046: ...CHAPTER 30 Congestion Control Commands Automatic Traffic Control Commands 1046...
Страница 1058: ...CHAPTER 32 UniDirectional Link Detection Commands 1058...
Страница 1064: ...CHAPTER 33 Address Table Commands 1064...
Страница 1124: ...CHAPTER 35 ERPS Commands 1124...
Страница 1168: ...CHAPTER 36 VLAN Commands Configuring Voice VLANs 1168...
Страница 1182: ...CHAPTER 37 Class of Service Commands Priority Commands Layer 3 and 4 1182...
Страница 1202: ...CHAPTER 38 Quality of Service Commands 1202...
Страница 1360: ...CHAPTER 41 CFM Commands Delay Measure Operations 1360...
Страница 1382: ...CHAPTER 43 Domain Name Service Commands 1382...
Страница 1440: ...SECTION IV Appendices 1440...
Страница 1468: ...COMMAND LIST 1468...
Страница 1479: ......
Страница 1480: ...ES3528MV2 ES3528MV2 DC E112013 ST R03...