Netgear Switch M4100-12G-POE+ User Manual Page 141
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Switching Commands
141
ProSafe M4100 and M7100 Managed Switches
The following shows sample CLI display output for the command.
(switch) #show ip source binding
MAC Address IP Address Type Vlan Interface
----------------- --------------- ------------- ----- -------------
00:00:00:00:00:08 1.2.3.4 dhcp-snooping 2 0/1
00:00:00:00:00:09 1.2.3.4 dhcp-snooping 3 0/1
00:00:00:00:00:0A 1.2.3.4 dhcp-snooping 4 0/1
Dynamic ARP Inspection Commands
Dynamic ARP Inspection (DAI) is a security feature that rejects invalid and malicious ARP
packets. DAI prevents a class of man-in-the-middle attacks, where an unfriendly station
intercepts traffic for other stations by poisoning the ARP caches of its unsuspecting
neighbors. The miscreant sends ARP requests or responses mapping another station’s IP
address to its own MAC address.
DAI relies on DHCP snooping. DHCP snooping listens to DHCP message exchanges and
builds a binding database of valid {MAC address, IP address, VLAN, and interface} tuples.
When DAI is enabled, the switch drops ARP packets whose sender MAC address and
sender IP address do not match an entry in the DHCP snooping bindings database.
You can
optionally configure additional ARP packet validation.
ip arp inspection vlan
Use this command to enable Dynamic ARP Inspection on a list of comma-separated VLAN
ranges.
Default disabled
Format ip arp inspection vlan vlan-list
Mode
no ip arp inspection vlan
Use this command to disable Dynamic ARP Inspection on a list of comma-separated VLAN
ranges.
Format no ip arp inspection vlan vlan-list
Mode
VLAN
VLAN for the entry
.
Interface
IP address of the interface in slot/port format.
Global Config
Global Config
Term Definition
- ProSafe Managed Switch 1
- Trademarks 2
- Revision History 2
- Contents 3
- Chapter 4 Routing Commands 4
- Chapter 6 IPv6 Commands 5
- Chapter 10 Utility Commands 5
- Chapter 12 Log Messages 6
- Chapter 14 Command List 6
- Licensing and Command Support 8
- Command Syntax 9
- Command Conventions 9
- Common Parameter Values 10
- Slot/Port Naming Convention 11
- Using a Command’s “No” Form 12
- Managed Switch Modules 12
- Command Modes 12
- Table 5. CLI Command Modes 13
- CLI Error Messages 16
- CLI Line-Editing Conventions 17
- Using CLI Help 17
- Accessing the CLI 18
- Port Configuration Commands 21
- Loopback Interface Commands 27
- VLAN Commands 47
- Double VLAN Commands 60
- Voice VLAN Commands 63
- Protected Ports Commands 65
- Private VLAN 68
- GARP Commands 71
- GVRP Commands 73
- GMRP Commands 75
- 802.1X Supplicant Commands 91
- Storm-Control Commands 94
- Switching Commands 100
- Flow Control Commands 104
- Port Mirroring 121
- Static MAC Filtering 123
- DHCP L2 Relay Agent Commands 127
- DHCP Client Commands 131
- MLD Snooping Commands 161
- vlanid 0-3600 165
- Port Security Commands 171
- LLDP (802.1AB) Commands 175
- {<slot/port> 180
- LLDP-MED Commands 184
- Denial of Service Commands 193
- TCP Header Of 194
- • TCP SYN: 194
- MAC Database Commands 203
- ISDP Commands 205
- • About MVR 213
- • MVR Commands 213
- About MVR 214
- MVR Commands 214
- Example: 219
- Routing Commands 221
- IP Routing Commands 227
- Virtual LAN Routing Commands 248
- DHCP and BOOTP Relay Commands 257
- IP Helper Commands 259
- 1583compatibility 264
- Table 1. Trapflags Groups 286
- Dampening 309
- ICMP Throttling Commands 318
- IP Multicast Commands 321
- IP Multicast Commands 322
- DVMRP Commands 326
- PIM Commands 331
- Example 1: 339
- Example 2: 339
- Privileged EXEC 340
- Example 3: 341
- Example 4: 341
- IGMP Proxy Commands 349
- IPv6 Commands 355
- Tunnel Interface Commands 356
- IPv6 Routing Commands 357
- 3ffe:1::1234/64 359
- C - connected, S - static 371
- ::0) and unsupported 376
- OSPFv3 Commands 380
- DHCPv6 Commands 413
- FF02::1:2) 414
- <pool-name> 419
- [<ipv6-address>] 419
- IPv6 Multicast Commands 421
- IPv6 PIM Commands 424
- IPv6 MLD Commands 431
- IPv6 MLD-Proxy Commands 437
- [<slot/port>] 448
- DiffServ Class Commands 452
- Global Config 453
- DiffServ Policy Commands 461
- DiffServ Service Commands 466
- DiffServ Show Commands 468
- <slot/port> [in 471
- [in 471
- {deny 474
- {deny 480
- {deny 485
- [end time date] 489
- AutoVOIP 490
- About PoE 501
- PoE Commands 502
- Format poe reset 506
- Mode Global Config 506
- Interface Config 506
- Mode Interface Config 506
- PSE-capable ports 510
- Utility Commands 512
- Auto Install Commands 513
- Dual Image Commands 515
- Logging Commands 534
- For example: 561
- For each configured server: 563
- DHCP Server Commands 564
- DNS Client Commands 575
- Packet Capture Commands 580
- Cable Test Command 603
- [<index>] 608
- Software License Commands 609
- IP Address Conflict Commands 610
- RFC 2819 612
- RFC 3273 613
- RFC 3434 613
- UDLD Commands 618
- USB commands 620
- Management Commands 623
- Network Interface Commands 626
- “Interface Status” as “Up” 628
- Console Port Access Commands 629
- Telnet Commands 631
- Secure Shell (SSH) Commands 636
- Management Security Commands 639
- Access Commands 647
- User Account Commands 647
- SNMP Commands 670
- RADIUS Commands 680
- TACACS+ Commands 693
- <ip-address 694
- <priority> 697
- IPv6 Management Commands 703
- Log Messages 708
- Table 3. BSP Log Messages 709
- Table 4. NIM Log Messages 709
- Utilities 711
- Management 713
- Table 16. WEB Log Messages 715
- Table 18. SSHD Log Messages 715
- Table 19. SSLT Log Messages 716
- Switching 717
- Table 28. FDB Log Message 721
- Table 31. MFDB Log Message 721
- Table 36. ACL Log Messages 723
- Table 37. CoS Log Message 723
- Routing/IPv6 Routing 724
- Table 43. VRRP Log Messages 726
- Table 44. ARP Log Message 726
- Multicast 727
- Stacking 729
- Technologies 730
- O/S Support 732
- Green Ethernet Commands 734
- Energy-Detect Mode 735
- Table 58 740
- Command List 744
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