D-Link DHS-3226 [24/160] Ip addresses and snmp community names
![D-Link DGS-3308TG [24/160] Ip addresses and snmp community names](/views2/1043668/page24/bg18.png)
DGS-3224TGR Gigabit Ethernet Switch User’s Guide
12
IP Addresses and SNMP Community Names
Each switch must be assigned its own IP Address, which is used for communication with an SNMP network manager or
other TCP/IP application (for example BOOTP, TFTP). The switch’s default IP address is 10.90.90.90. You can change the
default switch IP Address to meet the specification of your networking address scheme.
The switch is also assigned a unique MAC address by the factory. This MAC address cannot be changed, and can be found
when using the command “show switch.”
In addition, you can also set an IP address for a gateway router. This becomes necessary when the network management
station is located on a different IP network from the switch, making it necessary for management packets to go through a
router to reach the network manager, and vice-versa.
For security, you can set in the switch a list of IP Addresses of the network managers that allow you to manage the switch.
You can also change the default SNMP Community Strings in the switch and set the access rights of these Community
Strings. In addition, a VLAN may be designated as a Management VLAN.
Setting an IP Address
The IP address for the switch must be set before it can be managed with the Web-based manager. The switch IP address
may be automatically set using BOOTP or DHCP protocols, in which case the actual address assigned to the switch must be
known.
The IP address may alternatively be set using the Command Line Interface (CLI) over the console serial port as follows:
1. Starting at the command line prompt local>, enter the commands config ipif System ipaddress
xxx.xxx.xxx.xxx/yyy.yyy.yyy.yyy. Where the x’s represent the IP address to be assigned to the IP interface
named System and the y’s represent the corresponding subnet mask.
2. Alternatively, you can enter the commands config ipif System ipaddress xxx.xxx.xxx.xxx/z. Where the x’s
represent the IP address to be assigned to the IP interface named System and the z represents the
corresponding number of subnets in CIDR notation.
Using this method, the switch can be assigned an IP address and subnet mask that can then be used to connect a
management station to the switch’s Web-based management agent.
Traps
Traps are messages that alert you of events that occur on the switch. The events can be as serious as a reboot (someone
accidentally turned OFF the switch), or less serious like a port status change. The switch generates traps and sends them to
the network manager (trap recipient).
Trap recipients are special users of the network who are given certain rights and access in overseeing the maintenance of
the network. Trap recipients will receive traps sent from the switch; they must immediately take certain actions to avoid
future failure or breakdown of the network.
You can also specify which network managers may receive traps from the switch by entering a list of the IP addresses of
authorized network managers. Up to four trap recipient IP addresses, and four corresponding SNMP community strings can
be entered.
SNMP community strings function like passwords in that the community string entered for a given IP address must be used
in the management station software, or a trap will be sent.
The following are trap types the switch can send to a trap recipient:
• Cold Start –This trap signifies that the switch has been powered up and initialized such that software settings are
reconfigured and hardware systems are rebooted. A cold start is different from a factory reset in that configuration
settings saved to non-volatile RAM used to reconfigure the switch.
• Authentication Failure – This trap signifies that someone has tried to logon to the switch using an invalid SNMP
community string. The switch automatically stores the source IP address of the unauthorized user.
Содержание
- User s guide 1
- Table of contents 3
- Intended readers 7
- Notes notices and cautions 7
- Preface 7
- Safety cautions 9
- Safety instructions 9
- General precautions for rack mountable products 10
- Safety instructions continued 10
- Safety instructions continued 11
- Battery handling reminder 12
- Protecting against electrostatic discharge 12
- Features 13
- Introduction 13
- Performance features 13
- Management 14
- Installation 15
- Unpacking 15
- Unpacking and setup 15
- Desktop or shelf installation 16
- Rack installation 16
- Power on 17
- External redundant power system 18
- Power failure 18
- Front panel 19
- Identifying external components 19
- Rear panel 19
- Led indicators 20
- Side panels 20
- Connecting the switch 21
- Switch to end node 21
- Switch to hub or switch 22
- Diagnostic console port rs 232 dce 23
- Local console management 23
- Switch management and operating concepts 23
- Ip addresses and snmp community names 24
- Setting an ip address 24
- Authentication 26
- Filtering 26
- Mac address aging time 26
- Packet forwarding 26
- Comparing port states 27
- Edge port 27
- P2p port 27
- Port transition states 27
- Spanning tree 27
- W rapid spanning tree 27
- D 802 w compatibility 28
- Ieee 802 q vlans 28
- Q vlan packet forwarding 29
- Q vlan tags 30
- Ingress filtering 31
- Port vlan id 31
- Tagging and untagging 31
- X port based and mac based access control 32
- Authentication server 33
- Authenticator 33
- Client 34
- Authentication process 35
- Port based network access control 35
- Dgs 3224tgr gigabit ethernet switch user s guide 36
- Ethernet switch 36
- Figure 5 10 example of typical port based configuration 36
- Network access controlled port 36
- Network access uncontrolled port 36
- Once the connected client has successfully been authenticated the port then becomes authorized and all subsequent traffic on the port is not subject to access control restriction until an event occurs that causes the port to become unauthorized hence if the port is actually connected to a shared media lan segment with more than one attached device successfully authenticating one of the attached devices effectively provides access to the lan for all devices on the shared segment clearly the security offered in this situation is open to attack 36
- Radius server 36
- Dgs 3224tgr gigabit ethernet switch user s guide 37
- Dynamic address allocation enables a client to be assigned an ip address from a pool of free addresses each address is assigned with a lease and a lease expiration period the client must renew the lease to continue using the assigned address dynamically assigned addresses can be returned to the free address pool if the computer is not being used if it is moved to another subnet of if its lease expires usually network policy ensures that the same ip address is assigned to a client each time and that addresses returned to the free address pool are reassigned 37
- Ethernet switch 37
- Figure 5 11 example of typical mac based configuration 37
- In order to successfully make use of 802 x in a shared media lan segment it would be necessary to create virtual ports one for each attached device that required access to the lan the switch would regard the single physical port connecting it to the shared media segment as consisting of a number of distinct virtual ports each virtual port being independently controlled from the point of view of eapol exchanges and authorization state the switch learns each attached device s individual mac address and effectively creates a virtual port that the attached device can then use to communicate with the lan via the switch 37
- Mac based network access control 37
- Network access controlled port 37
- Network access uncontrolled port 37
- Radius server 37
- The dynamic host configuration protocol dhcp can reduce the administrative burden of assigning and maintaining ip address information dhcp provides reliable and simple tcp ip network configuration ensures that address conflicts do not occur and helps to conserve the use of ip addresses through the centralized management of address allocation 37
- When the address lease expires the dhcp client enters the renewing state the client sends a request message to the dhcp server that provided the address the dhcp server sends an acknowledgement that contains the new lease and configuration parameters the client then updates its configuration values and returns to the bound state 37
- Getting started 39
- Introduction 39
- Web based network management 39
- Basic setup 43
- Switch information 43
- Basic switch setup 45
- Serial port settings 46
- Port configurations 47
- Port description settings 49
- Traffic segmentation table 50
- User accounts 51
- User accounts add 52
- User accounts edit 52
- Snmp network management 53
- Snmp v3 53
- Snmp view table 53
- Snmp community table 54
- Snmp host table 55
- Snmp group table 56
- Engine id 58
- Snmp user table 58
- Download firmware from tftp server 60
- Management station ip addresses 60
- Switch utilities 60
- Tftp services 60
- Download configuration from tftp server 61
- Upload history log to tftp server 62
- Upload settings to tftp server 62
- Ping test 63
- Cpu utilization 64
- Network monitoring 64
- Statistics 64
- Port error packets 65
- Port utilization 65
- Port packet analysis 66
- Address tables 67
- Mac address table 68
- Arp table 69
- Gvrp status 69
- Status 69
- Igmp snooping group table 70
- Router ports 70
- Switch history 71
- Factory reset 72
- Save changes 72
- Advanced setup 73
- Logout 73
- Restart system 73
- Spanning tree 74
- Switch advanced settings 74
- Stp switch settings 75
- Stp port settings 76
- Forwarding 77
- Mac address aging time 77
- Unicast mac address settings 78
- Multicast mac address settings 79
- Broadcast multicast storm control 80
- Configure qos 81
- Qos output scheduling 82
- P default priority 83
- Bandwidth control table 84
- P user priority 84
- Access profile mask setting 85
- Port security 95
- Port mirroring configurations 98
- Asymmetric vlan state 99
- Switch gvrp 99
- Vlan configurations 99
- Q vlans 100
- Q port settings 102
- Link aggregation 103
- Link aggregation algorithm 103
- Link aggregation group 103
- Lacp port settings 105
- X state 107
- X auth mode settings 108
- X port settings 108
- X port auth state 112
- X initialize reauthenticate ports 113
- Radius server settings 114
- X local user settings 115
- X auth diagnostics 116
- X auth statistics 117
- X auth session statistics 118
- Tacacs 119
- Tacacs state configuration 119
- X accounting client 119
- X auth client 119
- Tacacs server settings 120
- Tacacs group 121
- Tacacs group settings 121
- Tacacs method list 122
- Authentication 123
- Enable admin 123
- System log 124
- System log host 124
- System log state 124
- Igmp snooping global 126
- Multicast configuration 126
- Igmp snooping configurations 127
- Ssh management 128
- Static router port settings 128
- Ssh configurations 129
- Ssh account configuration 130
- Download certificate 131
- Ssl management 131
- Cipher suite configuration 132
- Ssl v3 configuration 133
- Tls v1 configuration 134
- Sim settings 135
- Single ip management 135
- Sim using the web interface 136
- Topology 138
- Tool tips 140
- Group icon 141
- Right click 141
- Commander switch icon 142
- Member switch icon 143
- Candidate switch icon 144
- Menu bar 145
- Device 146
- Configuration backup restore 147
- Firmware upgrade 147
- Performance 148
- Physical and environmental 148
- Technical specifications 148
- General 149
- Cable lengths 150
- Glossary 151
- All countries and regions excluding usa 154
- Dgs 3224tgr gigabit ethernet switch user s guide 154
- Limitation of liability 154
- Warranties exclusive 154
- Warranty and registration information 154
- Wichtige sicherheitshinweise 154
- Dgs 3224tgr gigabit ethernet switch user s guide 155
- Hardware 155
- Limited warranty 155
- Software 155
- For detailed warranty information applicable to products purchased outside the united states please contact the corresponding local d link office 157
- All countries and regions excluding usa 159
- Registration card 159
Похожие устройства
- Sony Cyber-Shot DSC-T500 Инструкция по эксплуатации
- Viewsonic VX2753MH-LED Инструкция по эксплуатации
- Sony USM8GL Инструкция по эксплуатации
- Panasonic DVD-K325 Инструкция по эксплуатации
- D-Link DES-3526 Инструкция по эксплуатации
- Viewsonic VX2451MH-LED Инструкция по эксплуатации
- Sony Cyber-Shot DSC-T50 Инструкция по эксплуатации
- Sony 16Gb USM16GL Инструкция по эксплуатации
- D-Link DES-3526DC Инструкция по эксплуатации
- Viewsonic VX2253MH-LED Инструкция по эксплуатации
- Electrolux EW 814 F Инструкция по эксплуатации
- D-Link DES-3550 Инструкция по эксплуатации
- Benq GW2255 Инструкция по эксплуатации
- Sony Cyber-Shot DSC-T33 Инструкция по эксплуатации
- JVC AV-2937V1 Инструкция по эксплуатации
- D-Link DES-3528 Инструкция по эксплуатации
- Benq GL2450HE Инструкция по эксплуатации
- Sony ICD-P620.CE7 512Mb Инструкция по эксплуатации
- Sony Cyber-Shot DSC-T300 Инструкция по эксплуатации
- Panasonic KX-F3000 Инструкция по эксплуатации