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HPE FlexNetwork 5130 EI Series Layer 3-Ip Services Configuration Guide
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177
Protocols and standards
•
RFC 3736,
Stateless Dynam
ic Host Configuration Protocol (DHCP) Service for I
Pv6
•
RFC 3315,
Dynamic Host Config
uration
Protocol for IPv6 (DHCPv6)
•
RFC 2462,
IPv6 Stateless
Address
Autoconfiguration
•
RFC 3633,
IPv6 Prefix Options for Dynamic Host C
onfiguration Protocol (DHCP) version 6
186
188
Table of Contents
Default Chapter
1
Configuration Guide
1
Table of Contents
3
Configuring ARP
11
About ARP
11
ARP Message Format
11
ARP Operating Mechanism
11
ARP Entry Types
12
ARP Tasks at a Glance
13
Configuring a Static ARP Entry
13
Configuring a Short Static ARP Entry
14
Configuring a Long Static ARP Entry
14
Configuring a Multiport ARP Entry
14
Configuring Features for Dynamic ARP Entries
15
Setting the Dynamic ARP Learning Limit for a Device
15
Setting the Dynamic ARP Learning Limit for an Interface
15
Setting the Aging Timer for Dynamic ARP Entries
16
Enabling Dynamic ARP Entry Check
16
Enabling ARP Logging
17
Display and Maintenance Commands for ARP
17
ARP Configuration Examples
18
Example: Configuring a Long Static ARP Entry
18
Example: Configuring a Short Static ARP Entry
19
Example: Configuring a Multiport ARP Entry
19
Configuring Gratuitous ARP
22
About Gratuitous ARP
22
IP Conflict Detection
22
Gratuitous ARP Packet Learning
22
Periodic Sending of Gratuitous ARP Packets
22
Gratuitous ARP Tasks at a Glance
23
Enabling IP Conflict Notification
23
Enabling Gratuitous ARP Packet Learning
23
Enabling Periodic Sending of Gratuitous ARP Packets
23
Enabling Sending Gratuitous ARP Packets for ARP Requests with Sender IP Address on a Different Subnet
24
Configuring Proxy ARP
25
About Proxy ARP
25
Enabling Common Proxy ARP
25
Enabling Local Proxy ARP
25
Display and Maintenance Commands for Proxy ARP
25
Common Proxy ARP Configuration Example
26
Example: Configuring Common Proxy ARP
26
Configuring ARP Snooping
28
About ARP Snooping
28
Creation of ARP Snooping Entries
28
Aging of ARP Snooping Entries
28
Protection for ARP Snooping
28
Enabling ARP Snooping
28
Display and Maintenance Commands for ARP Snooping
28
Configuring ARP Direct Route Advertisement
30
About ARP Direct Route Advertisement
30
Mechanism of ARP Direct Route Advertisement
30
Enabling ARP Direct Route Advertisement
30
Configuring IP Addressing
31
About IP Addressing
31
IP Address Representation and Classes
31
Special IP Addresses
32
Subnetting and Masking
32
IP Address Assignment
32
Assigning an IP Address to an Interface
33
Display and Maintenance Commands for IP Addressing
33
IP Addressing Configuration Examples
34
Example: Manually Specifying an IP Address
34
DHCP Overview
36
DHCP Network Model
36
DHCP Address Allocation
36
Allocation Mechanisms
36
IP Address Allocation Process
37
IP Address Lease Extension
37
DHCP Message Format
38
DHCP Options
39
Common DHCP Options
39
Custom DHCP Options
39
Vendor-Specific Option (Option 43)
40
Relay Agent Option (Option 82)
41
Option 184
41
Protocols and Standards
42
Configuring the DHCP Server
43
About DHCP Server
43
DHCP Address Assignment Mechanisms
43
Principles for Selecting an Address Pool
44
IP Address Allocation Sequence
45
DHCP Server Tasks at a Glance
45
Creating a DHCP User Class
46
Configuring an Address Pool on the DHCP Server
46
DHCP Address Pool Tasks at a Glance
46
Creating a DHCP Address Pool
46
Specifying a Primary Subnet and Multiple Address Ranges in a DHCP Address Pool
47
Specifying a Primary Subnet and Multiple Secondary Subnets in a DHCP Address Pool
48
Configuring a Static Binding in a DHCP Address Pool
49
Specifying Gateways for DHCP Clients
50
Specifying a Domain Name Suffix for DHCP Clients
51
Specifying DNS Servers for DHCP Clients
51
Specifying WINS Servers and Netbios Node Type for DHCP Clients
51
Specifying BIMS Server for DHCP Clients
52
Specifying the Configuration File for DHCP Client Automatic Configuration
52
Specifying a Server for DHCP Clients
53
Configuring Option 184 Parameters for DHCP Clients
53
Customizing DHCP Options
54
Configuring the DHCP User Class Whitelist
56
Applying an Address Pool to an Interface
56
Configuring a DHCP Policy for Dynamic Assignment
57
Enabling DHCP
57
Enabling the DHCP Server on an Interface
58
Configuring IP Address Conflict Detection
58
Enabling Handling of Option 82
59
Configuring the DHCP Server Security Features
59
Restrictions and Guidelines
59
Configuring DHCP Starvation Attack Protection
59
Configuring DHCP Server Compatibility
60
Configuring the DHCP Server to Always Broadcast Responses
60
Configuring the DHCP Server to Ignore BOOTP Requests
60
Configuring the DHCP Server to Send BOOTP Responses in RFC 1048 Format
61
Setting the DSCP Value for DHCP Packets Sent by the DHCP Server
61
Configuring DHCP Binding Auto Backup
61
Enabling Client Offline Detection on the DHCP Server
62
Configuring Address Pool Usage Alarming
62
Enabling DHCP Logging on the DHCP Server
63
Display and Maintenance Commands for DHCP Server
63
DHCP Server Configuration Examples
64
Example: Configuring Static IP Address Assignment
64
Example: Configuring Dynamic IP Address Assignment
65
Example: Configuring DHCP User Class
67
Network Requirement
67
Example: Configuring DHCP User Class Whitelist
69
Example: Configuring Primary and Secondary Subnets
70
Example: Customizing DHCP Option
71
Troubleshooting DHCP Server Configuration
73
Failure to Obtain a Non-Conflicting IP Address
73
Configuring the DHCP Relay Agent
74
About DHCP Relay Agent
74
DHCP Relay Agent Operation
74
DHCP Relay Agent Support for Option 82
75
DHCP Relay Agent Tasks at a Glance
75
Enabling DHCP
76
Enabling the DHCP Relay Agent on an Interface
76
Specifying DHCP Servers
76
Specifying DHCP Servers on a Relay Agent
76
Configuring a DHCP Address Pool on a DHCP Relay Agent
77
Specifying the DHCP Server Selecting Algorithm
77
Configuring the DHCP Relay Agent Security Features
79
Enabling the DHCP Relay Agent to Record Relay Entries
79
Enabling Periodic Refresh of Dynamic Relay Entries
79
Enabling DHCP Starvation Attack Protection
80
Enabling DHCP Server Proxy on the DHCP Relay Agent
81
Enabling Client Offline Detection on the DHCP Relay Agent
81
Configuring the DHCP Relay Agent to Release an IP Address
82
Configuring DHCP Relay Agent Support for Option 82
82
Setting the DSCP Value for DHCP Packets Sent by the DHCP Relay Agent
83
Specifying the DHCP Relay Agent Address for the Giaddr Field
83
Manually Specifying the DHCP Relay Agent Address for the Giaddr Field
83
Configuring Smart Relay to Specify the DHCP Relay Agent Address for the Giaddr Field
84
Specifying the Source IP Address for Relayed DHCP Requests
84
Display and Maintenance Commands for DHCP Relay Agent
85
DHCP Relay Agent Configuration Examples
85
Example: Configuring Basic DHCP Relay Agent
85
Example: Configuring Option 82
86
Example: Configuring DHCP Server Selection
87
Troubleshooting DHCP Relay Agent Configuration
88
Failure of DHCP Clients to Obtain Configuration Parameters through the DHCP Relay Agent
88
Configuring the DHCP Client
89
About DHCP Client
89
Restrictions and Guidelines: DHCP Client Configuration
89
DHCP Client Tasks at a Glance
89
Enabling the DHCP Client on an Interface
89
Configuring a DHCP Client ID for an Interface
90
Enabling Duplicated Address Detection
90
Setting the DSCP Value for DHCP Packets Sent by the DHCP Client
91
Display and Maintenance Commands for DHCP Client
91
DHCP Client Configuration Examples
91
Example: Configuring DHCP Client
91
Configuring DHCP Snooping
94
About DHCP Snooping
94
Application of Trusted and Untrusted Ports
94
DHCP Snooping Support for Option 82
95
Restrictions and Guidelines: DHCP Snooping Configuration
96
DHCP Snooping Tasks at a Glance
96
Configuring Basic DHCP Snooping Features
96
Configuring Basic DHCP Snooping Features in a Common Network
96
Configuring DHCP Snooping Support for Option 82
98
Configuring DHCP Snooping Entry Auto Backup
99
Setting the Maximum Number of DHCP Snooping Entries
99
Configuring DHCP Packet Rate Limit
100
Configuring DHCP Snooping Security Features
100
Enabling DHCP Starvation Attack Protection
100
Enabling DHCP-REQUEST Attack Protection
101
Configuring a DHCP Packet Blocking Port
101
Enabling DHCP Snooping Logging
102
Disabling DHCP Snooping on an Interface
102
Display and Maintenance Commands for DHCP Snooping
103
DHCP Snooping Configuration Examples
103
Example: Configuring Basic DHCP Snooping Features Globally
103
Example: Configuring Basic DHCP Snooping Features for a VLAN
104
Example: Configuring DHCP Snooping Support for Option 82
105
Configuring the BOOTP Client
107
About BOOTP Client
107
BOOTP Client Application
107
Obtaining an IP Address Dynamically
107
Protocols and Standards
107
Configuring an Interface to Use BOOTP for IP Address Acquisition
107
Display and Maintenance Commands for BOOTP Client
108
BOOTP Client Configuration Examples
108
Example: Configuring BOOTP Client
108
Configuring DNS
109
About DNS
109
Types of DNS Services
109
Static Domain Name Resolution
109
Dynamic Domain Name Resolution
109
DNS Proxy
110
DNS Spoofing
111
DNS Tasks at a Glance
112
Configuring the DNS Client
112
Configuring Static Domain Name Resolution
112
Configuring Dynamic Domain Name Resolution
113
Configuring the DNS Proxy
114
Configuring DNS Spoofing
114
Specifying the Source Interface for DNS Packets
115
Configuring the DNS Trusted Interface
115
Setting the DSCP Value for Outgoing DNS Packets
116
Display and Maintenance Commands for DNS
116
Ipv4 DNS Configuration Examples
116
Example: Configuring Static Domain Name Resolution
116
Example: Configuring Dynamic Domain Name Resolution
117
Example: Configuring DNS Proxy
119
Ipv6 DNS Configuration Examples
121
Example: Configuring Static Domain Name Resolution
121
Example: Configuring Dynamic Domain Name Resolution
121
Example: Configuring DNS Proxy
124
Troubleshooting DNS Configuration
125
Failure to Resolve Ipv4 Addresses
125
Failure to Resolve Ipv6 Addresses
126
Configuring IP Forwarding Basic Settings
127
About FIB Table
127
Saving the IP Forwarding Entries to a File
127
Display and Maintenance Commands for FIB Table
128
Configuring IRDP
129
About IRDP
129
IRDP Operation
129
Protocols and Standards
129
IRDP Tasks at a Glance
129
Restrictions and Guidelines: IRDP Configuration
129
Enabling IRDP
130
Specifying the Preference of Advertised IP Addresses
130
Setting the Lifetime of Advertised IP Addresses
130
Setting the Advertising Intervals
131
Specifying the Multicast Address as the Destination Address for Ras
131
Specifying a Proxy-Advertised IP Address
132
IRDP Configuration Examples
132
Example: Configuring IRDP
132
Optimizing IP Performance
135
IP Performance Optimization Tasks at a Glance
135
Enabling an Interface to Forward Directed Broadcasts Destined for the Directly Connected Network
135
About Forwarding Broadcasts Destined for the Directly Connected Network
135
Procedure
136
Setting the MTU of Ipv4 Packets Sent over an Interface
137
Enabling Sending ICMP Error Messages
137
About Sending ICMP Error Messages
137
Enabling Sending ICMP Redirect Messages
137
Enabling Sending ICMP Time Exceeded Messages
138
Enable Sending ICMP Destination Unreachable Messages
138
Configuring Rate Limit for ICMP Error Messages
139
Disabling Forwarding ICMP Fragments
140
Specifying the Source Address for ICMP Packets
140
Setting TCP MSS for an Interface
140
Configuring TCP Path MTU Discovery
141
Enabling SYN Cookie
142
Setting the TCP Buffer Size
142
Setting TCP Timers
142
Display and Maintenance Commands for IP Performance Optimization
143
Configuring UDP Helper
144
About UDP Helper
144
Configuring UDP Helper to Convert Broadcast to Unicast
144
Configuring UDP Helper to Convert Broadcast to Multicast
145
Display and Maintenance Commands for UDP Helper
145
UDP Helper Configuration Examples
146
Example: Configuring UDP Helper to Convert Broadcast to Unicast
146
Example: Configuring UDP Helper to Convert Broadcast to Multicast
147
Configuring Basic Ipv6 Settings
149
About Ipv6
149
Ipv6 Features
149
Ipv6 Addresses
150
Ipv6 Path MTU Discovery
152
Ipv6 Transition Technologies
153
Protocols and Standards
153
Ipv6 Basics Tasks at a Glance
153
Configuring an Ipv6 Global Unicast Address
154
About Ipv6 Global Unicast Address
154
Generating an EUI-64 Ipv6 Address
154
Manually Assigning an Ipv6 Global Unicast Address
155
Stateless Address Autoconfiguration
155
Configuring Prefix-Specific Address Autoconfiguration
156
Configuring an Ipv6 Link-Local Address
157
About Ipv6 Link-Local Address
157
Restrictions and Guidelines
157
Configuring Automatic Generation of an Ipv6 Link-Local Address for an Interface
157
Manually Assigning an Ipv6 Link-Local Address to an Interface
157
Configuring an Ipv6 Anycast Address
158
Configuring Path MTU Discovery
158
Setting the Interface MTU
158
Setting a Static Path MTU for an Ipv6 Address
158
Setting the Aging Time for Dynamic Path Mtus
159
Controlling Sending Icmpv6 Messages
159
Configuring the Rate Limit for Icmpv6 Error Messages
159
Enabling Replying to Multicast Echo Requests
160
Enabling Sending Icmpv6 Destination Unreachable Messages
160
Enabling Sending Icmpv6 Time Exceeded Messages
160
Enabling Sending Icmpv6 Redirect Messages
161
Specifying the Source Address for Icmpv6 Packets
161
Enabling Ipv6 Local Fragment Reassembly
162
Display and Maintenance Commands for Ipv6 Basics
162
Basic Ipv6 Settings Configuration Examples
163
Example: Configuring Basic Ipv6 Settings
163
Configuring Ipv6 Neighbor Discovery
168
About Ipv6 Neighbor Discovery
168
Icmpv6 Messages Used by Ipv6 Neighbor Discovery
168
Address Resolution
168
Neighbor Reachability Detection
169
Duplicate Address Detection
169
Router/Prefix Discovery and Stateless Address Autoconfiguration
170
Redirection
170
Protocols and Standards
170
Ipv6 Neighbor Discovery Tasks at a Glance
170
Configuring a Static Neighbor Entry
171
Setting the Dynamic Neighbor Learning Limit on an Interface
171
Setting the Aging Timer for ND Entries in Stale State
172
Minimizing Link-Local ND Entries
172
Setting the Hop Limit
172
Configuring RA Message Sending and Parameters
173
About RA Message Parameters
173
Restrictions and Guidelines
173
Enabling the Sending of RA Messages
174
Configuring Parameters for RA Messages
174
Setting the Maximum Number of Attempts to Send an NS Message for DAD
175
Configuring ND Snooping
175
About ND Snooping
175
Procedure
177
Enabling ND Proxy
178
About ND Proxy
178
Enabling Common ND Proxy
179
Enabling Local ND Proxy
179
Display and Maintenance Commands for Ipv6 ND
179
ND Snooping Configuration Examples
180
Example: Configuring ND Snooping
180
Dhcpv6 Overview
183
Dhcpv6 Address/Prefix Assignment
183
Rapid Assignment Involving Two Messages
183
Assignment Involving Four Messages
183
Address/Prefix Lease Renewal
184
Stateless Dhcpv6
185
Dhcpv6 Options
185
Option 18
185
Option 37
186
Protocols and Standards
187
Configuring the Dhcpv6 Server
188
About Dhcpv6 Server
188
Ipv6 Address Assignment
188
Ipv6 Prefix Assignment
188
Concepts
189
Dhcpv6 Address Pool
189
Ipv6 Address/Prefix Allocation Sequence
190
Dhcpv6 Server Tasks at a Glance
191
Configuring Ipv6 Prefix Assignment
191
Configuring Ipv6 Address Assignment
193
Configuring Network Parameters Assignment
194
About Network Parameters Assignment
194
Configuring Network Parameters in a Dhcpv6 Address Pool
194
Configuring Network Parameters in a Dhcpv6 Option Group
195
Configuring the Dhcpv6 Server on an Interface
196
Configuring a Dhcpv6 Policy for Ipv6 Address and Prefix Assignment
197
Setting the DSCP Value for Dhcpv6 Packets Sent by the Dhcpv6 Server
198
Configuring Dhcpv6 Binding Auto Backup
198
Enabling the Dhcpv6 Server to Advertise Ipv6 Prefixes
199
Enabling Dhcpv6 Logging on the Dhcpv6 Server
199
Display and Maintenance Commands for Dhcpv6 Server
200
Dhcpv6 Server Configuration Examples
201
Example: Configuring Dynamic Ipv6 Prefix Assignment
201
Example: Configuring Dynamic Ipv6 Address Assignment
203
Configuring the Dhcpv6 Relay Agent
206
About Dhcpv6 Relay Agent
206
Typical Application
206
Dhcpv6 Relay Agent Operating Process
206
Dhcpv6 Relay Agent Tasks at a Glance
207
Enabling the Dhcpv6 Relay Agent on an Interface
207
Specifying Dhcpv6 Servers on the Relay Agent
208
Specifying Dhcpv6 Server IP Addresses
208
Specifying Dhcpv6 Servers for a Dhcpv6 Address Pool on the Dhcpv6 Relay Agent
208
Specifying a Gateway Address for Dhcpv6 Clients
209
Setting the DSCP Value for Dhcpv6 Packets Sent by the Dhcpv6 Relay Agent
209
Specifying a Padding Mode for the Interface-ID Option
210
Enabling the Dhcpv6 Relay Agent to Advertise Ipv6 Prefixes
210
Configuring Dhcpv6 Relay Security Features
210
Enabling the Dhcpv6 Relay Agent to Record Relay Entries
210
Enabling Ipv6 Release Notification
211
Enabling Client Offline Detection
211
Display and Maintenance Commands for Dhcpv6 Relay Agent
212
Dhcpv6 Relay Agent Configuration Examples
212
Example: Configuring Dhcpv6 Relay Agent
212
Configuring the Dhcpv6 Client
215
About the Dhcpv6 Client
215
Restrictions and Guidelines: Dhcpv6 Client Configuration
215
Dhcpv6 Client Tasks at a Glance
215
Configuring the Dhcpv6 Client DUID
215
Configuring Ipv6 Address Acquisition
216
Configuring Ipv6 Prefix Acquisition
216
Configuring Ipv6 Address and Prefix Acquisition
216
Configuring Acquisition of Configuration Parameters Except IP Addresses and Prefixes
217
Setting the DSCP Value for Dhcpv6 Packets Sent by the Dhcpv6 Client
217
Display and Maintenance Commands for Dhcpv6 Client
218
Dhcpv6 Client Configuration Examples
218
Example: Configuring Ipv6 Address Acquisition
218
Example: Configuring Ipv6 Prefix Acquisition
220
Example: Configuring Ipv6 Address and Prefix Acquisition
221
Example: Configuring Stateless Dhcpv6
223
Configuring Dhcpv6 Snooping
226
About Dhcpv6 Snooping
226
Application of Trusted and Untrusted Ports
226
Restrictions and Guidelines: Dhcpv6 Snooping Configuration
227
Dhcpv6 Snooping Tasks at a Glance
227
Configuring Basic Dhcpv6 Snooping
227
Configuring DHCP Snooping Support for Option 18
228
Configuring DHCP Snooping Support for Option 37
228
Configuring Dhcpv6 Snooping Entry Auto Backup
228
Setting the Maximum Number of Dhcpv6 Snooping Entries
229
Configuring Dhcpv6 Packet Rate Limit
229
Enabling Dhcpv6-REQUEST Check
230
Configuring a Dhcpv6 Packet Blocking Port
230
Enabling Dhcpv6 Snooping Logging
231
Display and Maintenance Commands for Dhcpv6 Snooping
231
Dhcpv6 Snooping Configuration Examples
232
Example: Configuring Dhcpv6 Snooping
232
Document Conventions and Icons
233
Conventions
233
Network Topology Icons
234
Support and Other Resources
235
Accessing Hewlett Packard Enterprise Support
235
Accessing Updates
235
Websites
235
Customer Self Repair
236
Remote Support
236
Documentation Feedback
236
Index
237
Other manuals for HPE FlexNetwork 5130 EI Series
Command Reference
314 pages
Fundamentals Configuration Guide
183 pages
Configuration Guide
117 pages
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HPE FlexNetwork 5130 EI Series Specifications
General
Brand
HPE
Model
FlexNetwork 5130 EI Series
Category
Switch
Language
English
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