User's Manual
Table Of Contents
- Chapter 1 INTRODUCTION
- Chapter 2 INSTALLATION
- Chapter 3 Switch Management
- Chapter 4 Basic Switch Configuration
- Chapter 5 File System Operations
- Chapter 6 Cluster Configuration
- Chapter 7 Port Configuration
- Chapter 8 Port Isolation Function Configuration
- Chapter 9 Port Loopback Detection Function Configuration
- Chapter 10 ULDP Function Configuration
- Chapter 11 LLDP Function Operation Configuration
- Chapter 12 Port Channel Configuration
- Chapter 13 Jumbo Configuration
- Chapter 14 EFM OAM Configuration
- Chapter 15 VLAN Configuration
- Chapter 16 MAC Table Configuration
- Chapter 17 MSTP Configuration
- Chapter 18 QoS Configuration
- Chapter 19 Flow-based Redirection
- Chapter 20 Egress QoS Configuration
- Chapter 21 Flexible Q-in-Q Configuration
- Chapter 22 Layer 3 Forward Configuration
- Chapter 23 ARP Scanning Prevention Function Configuration
- Chapter 24 Prevent ARP, ND Spoofing Configuration
- Chapter 25 ARP GUARD Configuration
- Chapter 26 ARP Local Proxy Configuration
- Chapter 27 Gratuitous ARP Configuration
- Chapter 28 Keepalive Gateway Configuration
- Chapter 29 DHCP Configuration
- Chapter 30 DHCPv6 Configuration
- Chapter 31 DHCP option 82 Configuration
- Chapter 32 DHCPv6 option37, 38
- Chapter 33 DHCP Snooping Configuration
- Chapter 34 Routing Protocol Overview
- Chapter 35 Static Route
- Chapter 36 RIP
- Chapter 37 RIPng
- Chapter 38 OSPF
- Chapter 39 OSPFv3
- Chapter 40 BGP
- 40.1 Introduction to BGP
- 40.2 BGP Configuration Task List
- 40.3 Configuration Examples of BGP
- 40.3.1 Examples 1: configure BGP neighbor
- 40.3.2 Examples 2: configure BGP aggregation
- 40.3.3 Examples 3: configure BGP community attributes
- 40.3.4 Examples 4: configure BGP confederation
- 40.3.5 Examples 5: configure BGP route reflector
- 40.3.6 Examples 6: configure MED of BGP
- 40.3.7 Examples 7: example of BGP VPN
- 40.4 BGP Troubleshooting
- Chapter 41 MBGP4+
- Chapter 42 Black Hole Routing Manual
- Chapter 43 GRE Tunnel Configuration
- Chapter 44 ECMP Configuration
- Chapter 45 BFD
- Chapter 46 BGP GR
- Chapter 47 OSPF GR
- Chapter 48 IPv4 Multicast Protocol
- 48.1 IPv4 Multicast Protocol Overview
- 48.2 PIM-DM
- 48.3 PIM-SM
- 48.4 MSDP Configuration
- 48.4.1 Introduction to MSDP
- 48.4.2 Brief Introduction to MSDP Configuration Tasks
- 48.4.3 Configuration of MSDP Basic Function
- 48.4.4 Configuration of MSDP Entities
- 48.4.5 Configuration of Delivery of MSDP Packet
- 48.4.6 Configuration of Parameters of SA-cache
- 48.4.7 MSDP Configuration Examples
- 48.4.8 MSDP Troubleshooting
- 48.5 ANYCAST RP Configuration
- 48.6 PIM-SSM
- 48.7 DVMRP
- 48.8 DCSCM
- 48.9 IGMP
- 48.10 IGMP Snooping
- 48.11 IGMP Proxy Configuration
- Chapter 49 IPv6 Multicast Protocol
- Chapter 50 Multicast VLAN
- Chapter 51 ACL Configuration
- Chapter 52 802.1x Configuration
- 52.1 Introduction to 802.1x
- 52.2 802.1x Configuration Task List
- 52.3 802.1x Application Example
- 52.4 802.1x Troubleshooting
- Chapter 53 The Number Limitation Function of Port, MAC in VLAN and IP Configuration
- 53.1 Introduction to the Number Limitation Function of Port, MAC in VLAN and IP
- 53.2 The Number Limitation Function of Port, MAC in VLAN and IP Configuration Task Sequence
- 53.3 The Number Limitation Function of Port, MAC in VLAN and IP Typical Examples
- 53.4 The Number Limitation Function of Port, MAC in VLAN and IP Troubleshooting Help
- Chapter 54 Operational Configuration of AM Function
- Chapter 55 TACACS+ Configuration
- Chapter 56 RADIUS Configuration
- Chapter 57 SSL Configuration
- Chapter 58 IPv6 Security RA Configuration
- Chapter 59 VLAN-ACL Configuration
- Chapter 60 MAB Configuration
- Chapter 61 PPPoE Intermediate Agent Configuration
- Chapter 62 SAVI Configuration
- Chapter 63 Web Portal Configuration
- Chapter 64 VRRP Configuration
- Chapter 65 IPv6 VRRPv3 Configuration
- Chapter 66 MRPP Configuration
- Chapter 67 ULPP Configuration
- Chapter 68 ULSM Configuration
- Chapter 69 Mirror Configuration
- Chapter 70 RSPAN Configuration
- Chapter 71 sFlow Configuration
- Chapter 72 SNTP Configuration
- Chapter 73 NTP Function Configuration
- Chapter 74 DNSv4/v6 Configuration
- Chapter 75 Summer Time Configuration
- Chapter 76 Monitor and Debug
- Chapter 77 Reload Switch after Specified Time
- Chapter 78 Debugging and Diagnosis for Packets Received and Sent by CPU
- Chapter 79 VSF
- Chapter 80 PoE Configuration
- Chapter 81 SWITCH OPERATION
- Chapter 82 TROUBLESHOOTING
- Chapter 83 APPENDIX A
- Chapter 84 GLOSSARY
33-5
15
.
Configure DHCP Snooping option 82 attributes
Command
Explanation
Globe mode
ip dhcp snooping information
option subscriber-id format {hex |
acsii | vs-hp}
This command is used to set subscriber-id
format of DHCP snooping option82.
ip dhcp snooping information
option remote-id {standard |
<remote-id>}
no ip dhcp snooping information
option remote-id
Set the suboption2 (remote ID option) content of
option 82 added by DHCP request packets (they
are received by the port). The no command sets
the additive suboption2 (
remote ID option)
format of option 82 as standard.
ip dhcp snooping information
option allow-untrusted
no ip dhcp snooping information
option allow-untrusted
This command is used to set that allow
untrusted ports of DHCP snooping to receive
DHCP packets w
ith option82 option. When
disabling this command, all untrusted ports will
drop DHCP packets with option82 option.
ip dhcp snooping information
option delimiter [colon | dot | slash
| space]
no ip dhcp snooping information
option delimiter
Set the delimit
er of each parameter for
suboption of option82 in global mode, no
command restores the delimiter as slash.
ip dhcp snooping information
option self-defined remote-id
{hostname | mac | string WORD}
no ip dhcp snooping information
option self-defined remote-id
Set creation method for option82, users can
define the parameters of remote-id suboption by
themselves.
ip dhcp snooping information
option self-defined remote-id
format [ascii | hex]
Set self-defined format of remote-id for snooping
option82.
ip dhcp snooping information
option self-defined subscriber-id
{vlan | port | id (switch-id (mac |
hostname)| remote-mac) | string
WORD}
no ip dhcp snooping information
option type self-defined
subscriber-id
Set creation method for option82, users can
define the parameters of circute-id suboption by
themselves.
ip dhcp snooping information
option self-defined subscriber-id
format [ascii | hex]
Set self-defined format of circuit-id for snooping
option82.