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NETGEAR 8800 Chassis Switch CLI Manual Default Enabled. Usage Guidelines If ARP refresh is enabled, the switch resends ARP requests for the host at 3/4 of the configured ARP timer value. For example: If the ARP timeout is set to 20 minutes, the switch attempts to resend an ARP request for the host when the host entry is at 15 minutes. If the host replies, the ARP entry is reset back to 0, and the timer starts again. If you do not specify a virtual router, the command applies to the current virtual router. Example The following command enables IP ARP refresh: enable iparp refresh enable ipforwarding enable ipforwarding {ipv4 | broadcast} {vlan } Description Enables IPv4 routing or IPv4 broadcast forwarding for one or all VLANs. If no argument is provided, enables IPv4 routing for all VLANs that have been configured with an IP address on the current virtual router. Syntax Description ipv4 broadcast vlan_name Specifies IPv4 forwarding Specifies broadcast IP forwarding. Specifies a VLAN name. Default Disabled. Usage Guidelines IP forwarding must first be enabled before IP broadcast forwarding can be enabled. When new IP interfaces are added, IP forwarding (and IP broadcast forwarding) is disabled by default. Currently, NETGEAR switches only have a single hardware control per VLAN for IP forwarding of IPv4 and IPv6 unicast packets. Therefore, enabling IPv4 forwarding on a VLAN also enables IPv6 hardware forwarding on that VLAN. Future switches may have independent controls per-VLAN for forwarding of IPv4 and IPv6 unicast packets. Chapter 19. IP Unicast Commands | 867

Section	Page
NETGEAR 8800 Chassis Switch CLI Manual	1
Contents	3
1. Command Reference Overview	6
Introduction	6
Audience	6
Structure of this Guide	7
Understanding the Command Syntax	7
Access Levels	7
Syntax Symbols	8
Syntax Helper	8
Object Names	9
Command Shortcuts	10
Port Numbering	10
Numerical Ranges	10
Line-Editing Keys	11
Command History	12
2. Commands for Accessing the Switch	13
3. Commands for Managing the Switch	57
SNMP	57
Telnet	58
TFTP	58
System Redundancy with Dual Management Modules Installed	58
Power Supply Management	58
Simple Network Time Protocol	59
4. Commands for Managing the NETGEAR 8800 Software	157
5. Commands for Configuring Slots and Ports on a Switch	190
6. Commands for Configuring LLDP	269
7. PoE Commands	300
Summary of PoE Software Features	300
8. Commands for Status Monitoring and Statistics	330
Event Management System	330
sFlow Statistics	331
RMON	331
9. VLAN Commands	425
10. FDB Commands	453
11. Commands for Virtual Routers	472
12. Policy Manager Commands	481
13. ACL Commands	487
14. QoS Commands	520
15. Security Commands	554
SSH	554
SSL	554
User Authentication	554
Denial of Service	555
16. Network Login Commands	679
17. STP Commands	737
STP	737
RSTP	737
MSTP	738
Spanning Tree Domains	738
Member VLANs	738
Carrier VLAN	738
Protected VLAN	739
STPD Modes	739
Encapsulation Modes	740
STP Rules and Restrictions	741
18. VRRP Commands	793
19. IP Unicast Commands	814
20. IPv6 Unicast Commands	904
21. RIP Commands	950
22. RIPng Commands	973
23. OSPF Commands	994
OSPF Edge Mode	995
24. OSPFv3 Commands	1036
OSPF Edge Mode	1037
25. BGP Commands	1075
26. IP Multicast Commands	1163
27. IPv6 Multicast Commands	1242
28. MSDP Commands	1261
29. vMAN (PBN) Commands	1296
A. Configuration and Image Commands	1306
B. Troubleshooting Commands	1345
Event Management System	1345

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Match case Limit results 1 per page

Chapter 19.

IP Unicast Commands

867

NETGEAR 8800 Chassis Switch CLI Manual

Default

Enabled.

Usage Guidelines

If ARP refresh is enabled, the switch resends ARP requests for the host at 3/4 of the

configured ARP timer value.

For example: If the ARP timeout is set to 20 minutes, the switch attempts to resend an ARP

request for the host when the host entry is at 15 minutes. If the host replies, the ARP entry is

reset back to 0, and the timer starts again.

If you do not specify a virtual router, the command applies to the current virtual router.

Example

The following command enables IP ARP refresh:

enable iparp refresh

enable ipforwarding

enable ipforwarding {ipv4 | broadcast} {vlan <vlan_name>}

Description

Enables IPv4 routing or IPv4 broadcast forwarding for one or all VLANs. If no argument is

provided, enables IPv4 routing for all VLANs that have been configured with an IP address

on the current virtual router.

Syntax Description

Default

Disabled.

Usage Guidelines

IP forwarding must first be enabled before IP broadcast forwarding can be enabled. When

new IP interfaces are added, IP forwarding (and IP broadcast forwarding) is disabled by

default. Currently, NETGEAR switches only have a single hardware control per VLAN for IP

forwarding of IPv4 and IPv6 unicast packets. Therefore, enabling IPv4 forwarding on a VLAN

also enables IPv6 hardware forwarding on that VLAN. Future switches may have

independent controls per-VLAN for forwarding of IPv4 and IPv6 unicast packets.

ipv4

Specifies IPv4 forwarding

broadcast

Specifies broadcast IP forwarding.

vlan_name

Specifies a VLAN name.