Avaya Configuring SNMP, RMON, BOOTP, DHCP, and RARP Services Bedienungsanleitung Seite 62
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Configuring SNMP, RMON, BootP, DHCP, and RARP Services
2-26 117362-A Rev. A
BootP Relay Agent Overview
BootP is built on the client-server model and allows a diskless client to boot
remotely from a server on the same network or on a different physical network.
The client broadcasts a request to boot from a remote server. When a suitable
server receives the BOOTREQUEST packet, it responds to the client by issuing a
BOOTREPLY packet, which includes the client’s IP address, the address of the
gateway, and the address of a server. The server then transmits the boot file to the
client via a transfer protocol, such as Trivial File Transfer Protocol (TFTP).
Figure 2-4 illustrates how BootP works when the client and the server are on the
same network. The client transmits a BOOTREQUEST packet to the IP broadcast
address (255.255.255.255). The server sends a BOOTREPLY packet to the client.
Depending on the server’s implementation, the server addresses the packet to
either the broadcast or the client’s IP address.
Figure 2-4. BootP Client and Server on the Same Physical Network
If, however, the client and the server are on different physical networks, a BootP
relay agent (also known as a BootP gateway) must forward BootP packets to their
correct destinations. When you configure a Bay Networks router for BootP
services, the router acts as a BootP relay agent. F
igure 2-5 illustrates how BootP
works when the client and the server are on different physical networks.
Server sends acknowledgment
to the client (BOOTREPLY).
Client broadcasts a request
to boot from a remote server
(BOOTREQUEST).
Client Server
SNM0002A
- Configuring SNMP 1
- RMON, BootP, DHCP 1
- Contents 5
- 117362-A Rev. A 10
- About This Guide 17
- Before You Begin 18
- Conventions 18
- Acronyms 19
- Bay Networks Customer Service 20
- How to Get Help 21
- Chapter 1 23
- Starting SNMP, RMON, BootP 23
- DHCP, and RARP Services 23
- Starting Configuration Tools 24
- Using Site Manager 25
- Using the BCC 25
- Starting SNMP Services 27
- Starting RMON 28
- Enabling the Ethernet DCM 29
- Customizing the Ethernet DCM 30
- Starting BootP Services 31
- Starting DHCP Services 32
- Enabling DHCP on an Interface 33
- Starting RARP Services 34
- Chapter 2 37
- SNMP, RMON, BootP 37
- DHCP, and RARP Concepts 37
- SNMP Messages 38
- SNMP Communities 39
- SNMP Implementation Notes 40
- 2-6 117362-A Rev. A 42
- Table 2-1. Severity Levels 42
- Thresholds 43
- Threshold Example 43
- 2-8 117362-A Rev. A 44
- RMON Overview 45
- How RMON Works 46
- RMON Architecture 47
- RMON MIB Groups 48
- 117362-A Rev. A 2-13 49
- 2-14 117362-A Rev. A 50
- 117362-A Rev. A 2-15 51
- 2-16 117362-A Rev. A 52
- RMON Interoperability Issues 53
- 2-18 117362-A Rev. A 54
- RMON Applications 55
- RMON Memory Use 56
- 117362-A Rev. A 2-21 57
- 2-22 117362-A Rev. A 58
- 117362-A Rev. A 2-23 59
- 2-24 117362-A Rev. A 60
- 117362-A Rev. A 2-25 61
- BootP Relay Agent Overview 62
- 117362-A Rev. A 2-27 63
- 2-28 117362-A Rev. A 64
- 117362-A Rev. A 2-29 65
- DHCP Overview 66
- 117362-A Rev. A 2-31 67
- 2-32 117362-A Rev. A 68
- 117362-A Rev. A 2-33 69
- 2-34 117362-A Rev. A 70
- 117362-A Rev. A 2-35 71
- RARP Overview 72
- 117362-A Rev. A 2-37 73
- Chapter 3 75
- 3-2 117362-A Rev. A 76
- Disabling and Reenabling SNMP 77
- Specifying a Lock Address 80
- Adding SNMP Communities 83
- Deleting an SNMP Community 86
- Adding a Manager 87
- Deleting a Manager 91
- Specifying a Trap Entity 93
- Disabling a Trap Entity 96
- Configuring Trap Exceptions 97
- Deleting Trap Exceptions 99
- Configuring Thresholds 100
- Customizing SNMP 101
- Adding a Threshold 102
- 3-30 117362-A Rev. A 104
- Specifying Threshold Units 105
- 3-32 117362-A Rev. A 106
- 3-34 117362-A Rev. A 108
- Chapter 4 111
- Customizing a DCM for RMON 111
- 4-2 117362-A Rev. A 112
- 1:dcm_image 113
- Specifying the Boot Option 114
- Saving the Boot Image File 115
- 4-6 117362-A Rev. A 116
- 4-8 117362-A Rev. A 118
- Rebooting the Ethernet DCM 120
- 4-12 117362-A Rev. A 122
- 4-14 117362-A Rev. A 124
- Using Optivity LAN with RMON 125
- 4-16 117362-A Rev. A 126
- Chapter 5 127
- Customizing BootP 127
- 5-2 117362-A Rev. A 128
- 5-4 117362-A Rev. A 130
- BootP Server and the Routers 131
- 5-6 117362-A Rev. A 132
- BOOTREQUEST Packets 133
- 5-8 117362-A Rev. A 134
- 5-10 117362-A Rev. A 136
- 5-12 117362-A Rev. A 138
- 5-14 117362-A Rev. A 140
- 5-16 117362-A Rev. A 142
- Deleting BootP Globally 144
- Chapter 6 145
- Customizing DHCP 145
- 6-2 117362-A Rev. A 146
- Deleting DHCP Globally 148
- Chapter 7 149
- Customizing RARP 149
- 7-2 117362-A Rev. A 150
- 7-4 117362-A Rev. A 152
- Disabling RARP Globally 153
- Deleting RARP Globally 153
- Appendix A 155
- Parameter Descriptions 155
- A-2 117362-A Rev. A 156
- SNMP Global Parameters 157
- 158
- SNMP Community Parameters 159
- SNMP Manager Parameters 160
- 117362-A Rev. A A-7 161
- 164
- 167
- 167
- A-14 117362-A Rev. A 168
- DCM Global Parameters 169
- A-16 117362-A Rev. A 170
- 171
- 171
- BootP and DHCP Parameters 174
- 175
- BootP Address Parameters 176
- A-24 117362-A Rev. A 178
- 117362-A Rev. A A-25 179
- RARP Interface Parameters 181
- RARP Address Parameters 181
- A-28 117362-A Rev. A 182
- Appendix B 183
- Default Parameter Settings 183
- (continued) 184
- RARP Parameters 187
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