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Enable local proxy ARP in one of the following cases:
• Hosts connecting to different isolated Layer 2 ports in the same VLAN need to communicate at Layer
3.
• If an isolate-user-VLAN is configured, hosts in different secondary VLANs of the isolate-user-VLAN
need to communicate at Layer 3.
Enabling proxy ARP
Follow these steps to enable proxy ARP in VLAN interface view/Layer 3 Ethernet interface view/Layer 3
aggregate interface view:
To do… Use the command…
Remarks
Enter system view system-view —
Enter interface view
interface interface-type
interface-number
—
Enable proxy ARP proxy-arp enable
Required
Disabled by default.
Follow these steps to enable local proxy ARP in VLAN interface view/Layer 3 Ethernet interface
view/Layer 3 aggregate interface view:
To do… Use the command…
Remarks
Enter system view system-view —
Enter interface view
interface interface-type
interface-number
—
Enable local proxy ARP
local-proxy-arp enable [ ip-range
startIP to endIP ]
Required
Disabled by default.
Displaying and maintaining proxy ARP
To do… Use the command…
Remarks
Display whether proxy ARP is
enabled
display proxy-arp [ interface interface-type
interface-number ]
Available in any view
Display whether local proxy ARP is
enabled
display local-proxy-arp [ interface
interface-type interface-number ]
Available in any view
Proxy ARP configuration examples
Proxy ARP configuration example
Network requirements
As shown in Figure 42, Host A and Host D have the same prefix and mask (the IP addresses of Host A and
Host D are 192.168.10.100/16 and 192.168.20.200/16 respectively, and the two IP addresses belong
- H3C SecBlade NetStream Card 1
- Preface 3
- GUI conventions 4
- Symbols 4
- Network topology icons 4
- Port numbering in examples 4
- Obtaining documentation 5
- Technical support 5
- Documentation feedback 5
- Contents 6
- CLI configuration 16
- Entering the CLI 17
- Command conventions 17
- Undo form of a command 18
- CLI views 18
- Using the CLI online help 19
- Typing commands 20
- Typing incomplete keywords 21
- Configuring command aliases 21
- Configuring CLI hotkeys 22
- System Mana 23
- Maintenance Command Reference 23
- Checking command-line errors 24
- Using command history 24
- Controlling the CLI display 25
- Filtering output information 26
- Character Meanin 27
- Remarks 27
- Login methods 35
- Users and user interfaces 36
- Numbering user interfaces 36
- CLI login 37
- Login procedure 38
- Logging in through telnet 47
- ACSEI timers 58
- ACSEI startup and running 58
- NMS login 61
- NMS login example 63
- User login control 65
- NMS users 68
- Interface configuration 70
- General configuration 71
- IP addressing configuration 80
- Special IP addresses 81
- Subnetting and masking 81
- Configuring IP addresses 82
- 172.16.1.1/24 83
- 172.16.2.1/24 sub 83
- 172.16.1.2/24 83
- 172.16.2.2/24 83
- IP routing overview 85
- Dynamic routing protocols 86
- Routing preference 87
- Route recursion 87
- Static routing configuration 89
- Configuring a static route 90
- What is policy-based routing 93
- Configuring PBR 94
- Configuring local PBR 96
- Configuring interface PBR 96
- VLAN configuration 98
- VLAN fundamentals 99
- VLAN types 100
- Protocols and standards 100
- VLAN interface overview 101
- Configuration procedure 101
- Network requirements 102
- Verification 103
- Port link type 103
- Default VLAN 104
- To do... Use the command… 109
- Remarks 109
- Overview 110
- Working mechanism 115
- Configure the SecBlade card 119
- GE3/0/1 GE3/0/2 121
- XGE2/0/1 121
- ARP configuration 128
- Operation of ARP 129
- Configuring ARP 130
- ARP configuration example 133
- Gratuitous ARP configuration 135
- Configuring gratuitous ARP 136
- Proxy ARP configuration 137
- Local proxy ARP 138
- Enabling proxy ARP 139
- 2. Configure the SecBlade 143
- ACL configuration 144
- Match order 145
- ACL rule numbering 145
- ACL configuration task list 146
- Configuring an ACL 146
- Copying an IPv4 ACL 149
- Packet filtering with ACLs 150
- ACL configuration example 152
- NetStream overview 154
- How NetStream works 155
- Flow aging 155
- NetStream data export 156
- NetStream export formats 157
- NetStream filtering 157
- NetStream sampling 157
- IPv4 NetStream configuration 159
- Enabling IPv4 NetStream 160
- To do… Use the command… 166
- IPv6 NetStream configuration 167
- Configuration considerations 172
- Configuring the host device 173
- Configuring the NSC 175
- 1. Configure the Device 176
- Device management 188
- Configuring the system time 189
- Displaying the system time 189
- Configuring banners 192
- Rebooting the device 195
- Configuring a scheduled task 196
- NOTE: 204
- NTP configuration 205
- How NTP works 206
- NTP message format 207
- Operation modes of NTP 208
- Symmetric peers mode 209
- Broadcast mode 209
- NTP configuration task list 210
- Configuration prerequisites 213
- NTP configuration examples 214
- SecBlade and Device 217
- Automatic configuration 218
- Address acquisition process 220
- File types 221
- TFTP request sending mode 223
- FTP configuration 224
- Configuring the FTP client 225
- 10.1.1.1/16 229
- 10.3.1.1/16 229
- 10.2.1.1/16 229
- Configuring the FTP server 230
- 3. Upgrade SecBlade 233
- TFTP configuration 235
- Configuring the TFTP client 236
- File management 239
- Performing file operations 241
- Renaming a file 242
- Copying a file 242
- Moving a file 242
- Deleting a file 242
- Performing batch operations 243
- Setting prompt modes 245
- Example for file operations 246
- Configuration file overview 247
- Introduction 248
- Configuration rollback 250
- Configuration task list 250
- Device software overview 256
- Software upgrade methods 257
- Basic concepts in hotfix 258
- Patch status 259
- DEACTIVE state 260
- ACTIVE state 260
- RUNNING state 261
- One-step patch installation 262
- Loading a patch file 263
- Activating patches 263
- Confirming running patches 264
- Stopping running patches 264
- Deleting patches 264
- Network requirement 265
- Hotfix configuration example 267
- Configuring ping 268
- Tracert 269
- System debugging 270
- Information center overview 273
- System information format 277
- PRI (priority) 278
- Managing security logs files 287
- 1.1.0.1/16 1.2.0.1/16 290
- SNMP configuration 295
- SNMP configuration task list 296
- Configuring SNMPv3 297
- Configuring SNMP logging 299
- Configuring SNMP traps 299
- Enabling SNMP traps 300
- Configuring trap parameters 300
- SNMP configuration examples 302
- SNMPv3 configuration example 303
- 1.1.1.2/24 304
- XGE4/0/1XGE0/0 304
- 1.1.1.1/24 304
- MIB style configuration 307
- RMON configuration 308
- RMON groups 309
- Alarm group 310
- Private alarm group 310
- XGE4/0/1 314
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