TP-LINK TL-SG2424P User Manual Page 59
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- Table of contents
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Figure 5-16 Network diagram of DHCP
For different DHCP clients, DHCP server provides three IP address assigning methods:
(1) Manually assign the IP address: Allows the administrator to bind the static IP address to a
specific client (e.g.: WWW Server) via the DHCP server.
(2) Automatically assign the IP address: DHCP server assigns the IP address without an
expiry time limitation to the clients.
(3) Dynamically assign the IP address: DHCP server assigns the IP address with an expiry
time. When the time for the IP address expired, the client should apply for a new one.
Most clients obtain IP addresses dynamically, which is illustrated in the following figure.
Figure 5-17 Interaction between a DHCP client and a DHCP server
（1） DHCP-DISCOVER Stage: The Client broadcasts the DHCP-DISCOVER packet to find
the DHCP server.
（2） DHCP-OFFER Stage: Upon receiving the DHCP-DISCOVER packet, the DHCP server
selects an IP address from the IP pool according to the assigning priority of the IP
addresses and replies to the client with DHCP-OFFER packet carrying the IP address and
other information.
（3） DHCP-REQUEST Stage: In the situation that there are several DHCP servers sending the
DHCP-OFFER packets, the client will only respond to the first received DHCP-OFFER
51
- TL-SG2424P 1
- 4 Combo SFP Slots 1
- COPYRIGHT & TRADEMARKS 2
- FCC STATEMENT 2
- CE Mark Warning 2
- Safety Information 3
- Package Contents 9
- Chapter 1 About this Guide 10
- Chapter 2 Introduction 13
- 2.3 Appearance Description 14
- 2.3.2 Rear Panel 15
- 3.1 Login 16
- 3.2 Configuration 16
- Chapter 4 System 18
- Port Info 19
- 4.1.2 Device Description 20
- 4.1.3 System Time 20
- 4.1.4 Daylight Saving Time 21
- 4.1.5 System IP 23
- 4.2 User Management 24
- User Info 25
- User Table 25
- 4.3 System Tools 26
- 4.3.3 Firmware Upgrade 27
- 4.4 Access Security 28
- 4.4.1 Access Control 29
- 4.4.2 SSL Config 30
- 4.4.3 SSH Config 31
- Global Config 32
- Key Download 32
- Chapter 5 Switching 37
- 5.1.2 Port Mirror 38
- Figure 5-3 Mirroring Port 39
- 5.1.3 Port Security 40
- Port Security 41
- 5.1.4 Port Isolation 42
- 5.1.5 Loopback Detection 43
- 5.2 LAG 44
- 5.2.1 LAG Table 45
- 5.2.2 Static LAG 46
- 5.2.3 LACP Config 47
- LACP Config 48
- 5.3 Traffic Monitor 49
- 5.3.2 Traffic Statistics 50
- Statistics 51
- 5.4 MAC Address 52
- 5.4.1 Address Table 53
- 5.4.2 Static Address 54
- 5.4.3 Dynamic Address 55
- 5.4.4 Filtering Address 57
- 5.5 DHCP Filtering 58
- DHCP Cheating Attack 60
- DHCP Filtering 61
- Trusted Port 61
- Chapter 6 VLAN 62
- 6.1 802.1Q VLAN 63
- PVID 64
- 6.1.1 VLAN Config 65
- VLAN Config 66
- VLAN Members 66
- 6.1.2 Port Config 67
- VLAN of Port 68
- Configure switch A 70
- Configure switch B 70
- Chapter 7 Spanning Tree 71
- STP Timers 72
- STP Generation 73
- In the beginning 73
- Comparing BPDUs 73
- Selecting the root bridge 73
- 7.1 STP Config 76
- Parameters Config 77
- 7.2 Port Config 78
- Port Config 79
- 7.3 MSTP Instance 80
- 7.3.2 Instance Config 81
- 7.3.3 Instance Port Config 82
- 7.4 STP Security 84
- Root Protect 85
- TC Protect 85
- BPDU Protect 85
- BPDU Filter 85
- Port Protect 86
- 7.4.2 TC Protect 87
- Configure switch A: 88
- Configure switch B: 88
- Configure switch C: 89
- Configure switch D: 89
- Chapter 8 Multicast 91
- Multicast Address 92
- Multicast Address Table 92
- 8.1 IGMP Snooping 93
- 8.1.1 Snooping Config 94
- 8.1.2 Port Config 95
- 8.1.3 VLAN Config 96
- VLAN Table 97
- 8.1.4 Multicast VLAN 98
- Configuration procedure: 99
- Network Requirements 100
- Network Diagram 100
- Configuration Procedure 100
- 8.2 Multicast IP 101
- 8.2.2 Static Multicast IP 102
- 8.3 Multicast Filter 103
- 8.3.2 Port Filter 104
- Port Filter Config 105
- 8.4 Packet Statistics 106
- IGMP Statistics 107
- Chapter 9 QoS 108
- 9.1 DiffServ 111
- 9.1.2 DSCP Priority 112
- 9.1.3 802.1P/CoS mapping 113
- 9.1.4 Schedule Mode 114
- 9.2 Bandwidth Control 115
- 9.2.2 Storm Control 116
- 9.3 Voice VLAN 118
- 9.3.1 Global Config 120
- 9.3.2 Port Config 120
- Figure 9-13 Port Config 121
- 9.3.3 OUI Config 122
- Chapter 10 PoE 124
- 10.1.1 PoE Config 125
- 10.1.2 PoE Profile 126
- 10.2 PoE Time-Range 127
- Create Time-Range 128
- Create Time-Slice 128
- 10.2.3 PoE Holiday Config 129
- Chapter 11 SNMP 130
- MIB Introduction 131
- 11.1 SNMP Config 132
- 11.1.2 SNMP View 133
- 11.1.3 SNMP Group 134
- 11.1.4 SNMP User 135
- 11.1.5 SNMP Community 137
- Configuration Procedure: 138
- 11.2 Notification 139
- 11.3 RMON 141
- 11.3.1 History Control 142
- 11.3.2 Event Config 142
- 11.3.3 Alarm Config 143
- Chapter 12 LLDP 146
- 12.1 Basic Config 150
- 12.1.2 Port Config 151
- 12.2 Device Info 152
- 12.3 Device Statistics 153
- Auto Refresh 154
- Global Statistics 154
- Neighbor Statistics 154
- 12.4 LLDP-MED 155
- 12.4.1 Global Config 156
- 12.4.2 Port Config 156
- LLDP-MED Port Config 157
- 12.4.3 Local Info 158
- 12.4.4 Neighbor Info 159
- Neighbor Info 160
- Chapter 13 Maintenance 161
- 13.2 Log 162
- 13.2.1 Log Table 163
- 13.2.2 Local Log 164
- 13.2.3 Remote Log 165
- 13.2.4 Backup Log 165
- 13.3 Device Diagnostics 166
- 13.3.2 Loopback 167
- 13.4 Network Diagnostics 168
- Tracert Config 169
- Appendix A: Specifications 170
- Appendix C: Glossary 173
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