SGS-6341-Series User 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 MTU Configuration
- Chapter 14 EFM OAM Configuration
- Chapter 15 PORT SECURITY
- Chapter 16 DDM Configuration
- Chapter 17 LLDP-MED
- Chapter 18 bpdu-tunnel Configuration
- Chapter 19 EEE Energy-saving Configuration
- Chapter 20 VLAN Configuration
- Chapter 21 MAC Table Configuration
- Chapter 22 MSTP Configuration
- Chapter 23 QoS Configuration
- Chapter 24 Flow-based Redirection
- Chapter 25 Flexible Q-in-Q Configuration
- Chapter 26 Layer 3 Management Configuration
- Chapter 27 ARP Scanning Prevention Function Configuration
- Chapter 28 Prevent ARP Spoofing Configuration
- Chapter 29 ARP GUARD Configuration
- Chapter 30 Gratuitous ARP Configuration
- Chapter 31 DHCP Configuration
- Chapter 32 DHCPv6 Configuration
- Chapter 33 DHCP Option 82 Configuration
- Chapter 34 DHCP Option 60 and option 43
- Chapter 35 DHCPv6 Options 37, 38
- Chapter 36 DHCP Snooping Configuration
- Chapter 37 DHCP Snooping Option 82 Configuration
- Chapter 38 IPv4 Multicast Protocol
- Chapter 39 IPv6 Multicast Protocol
- Chapter 40 Multicast VLAN
- Chapter 41 ACL Configuration
- Chapter 42 802.1x Configuration
- 42.1 Introduction to 802.1x
- 42.2 802.1x Configuration Task List
- 42.3 802.1x Application Example
- 42.4 802.1x Troubleshooting
- Chapter 43 The Number Limitation Function of MAC and IP in Port, VLAN Configuration
- Chapter 44 Operational Configuration of AM Function
- Chapter 45 Security Feature Configuration
- 45.1 Introduction to Security Feature
- 45.2 Security Feature Configuration
- 45.2.1 Prevent IP Spoofing Function Configuration Task Sequence
- 45.2.2 Prevent TCP Unauthorized Label Attack Function Configuration Task Sequence
- 45.2.3 Anti Port Cheat Function Configuration Task Sequence
- 45.2.4 Prevent TCP Fragment Attack Function Configuration Task Sequence
- 45.2.5 Prevent ICMP Fragment Attack Function Configuration Task Sequence
- 45.3 Security Feature Example
- Chapter 46 TACACS+ Configuration
- Chapter 47 RADIUS Configuration
- Chapter 48 SSL Configuration
- Chapter 49 IPv6 Security RA Configuration
- Chapter 50 MAB Configuration
- Chapter 51 PPPoE Intermediate Agent Configuration
- Chapter 52 Web Portal Configuration
- Chapter 53 VLAN-ACL Configuration
- Chapter 54 SAVI Configuration
- Chapter 55 MRPP Configuration
- Chapter 56 ULPP Configuration
- Chapter 57 ULSM Configuration
- Chapter 58 Mirror Configuration
- Chapter 59 sFlow Configuration
- Chapter 60 RSPAN Configuration
- Chapter 61 ERSPAN
- Chapter 62 SNTP Configuration
- Chapter 63 NTP Function Configuration
- Chapter 64 Summer Time Configuration
- Chapter 65 DNSv4/v6 Configuration
- Chapter 66 Monitor and Debug
- Chapter 67 Reload Switch after Specified Time
- Chapter 68 Debugging and Diagnosis for Packets Received and Sent by CPU
- Chapter 69 Dying Gasp Configuration
- Chapter 70 PoE Configuration
ip dhcp relay information policy {drop |
keep | replace}
no ip dhcp relay information policy
This command is used to set the
retransmitting policy of the system for the
received DHCP request message which
contains option 82. The drop mode means
that if the message has option82, then the
system will drop it without processing; keep
mode means that the system will keep the
original option 82 segment in the message,
and forward it to the server to process;
replace mode means that the system will
replace the option 82 segment in the
existing message with its own option 82,
and forward the message to the server to
process. The “no ip dhcp relay information
policy” will set the retransmitting policy of
the option 82 DCHP message as “replace”.
ip dhcp relay information option
subscriber-id {standard | <circuit-id>}
no ip dhcp relay information option
subscriber-id
This command is used to set the format of
option 82 sub-option1(Circuit ID option)
added to the DHCP request messages
from interface, standard means the
standard VLAN name and physical port
name format,
like”VLAN2+Ethernet1/12”,<circuit-id> is
the circuit-id contents of option 82 specified
by users, which is a string no longer than
64characters. The” no ip dhcp relay
information option subscriber-id”
command will set the format of added
option 82 sub-option1 (Circuit ID option) as
standard format.
Global Mode
ip dhcp relay information option
remote-id {standard | <remote-id>}
no ip dhcp relay information option
remote-id
Set the suboption2 (remote ID option)
content of option 82 added by DHCP
request packets (They are received by the
interface). The no command sets the
additive suboption2 (remote ID option)
format of option 82 as standard.
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User’s Manual of SGS-6341 series