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Netgear XCM8806 Chassis Hardware Installation Guide - Page 863

enable icmp redirects, enable icmp time-exceeded, same subnet as the originating host

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NETGEAR 8800 Chassis Switch CLI Manual enable icmp redirects enable icmp redirects {vlan } Description Enables generation of ICMP redirect messages on one or all VLANs. Syntax Description name Specifies a VLAN name. Default Enabled. Usage Guidelines This option only applies to the switch when the switch is in routing mode. ICMP redirects are used in the situation where there are multiple routers in the same subnet. If a host sends a packet to it's default gateway, the gateway router looks at it's route table to find the best route to the destination. If it sees that the best route is through a router in the same subnet as the originating host, the switch sends an ICMP redirect (type 5) message to the host that originated the packet, telling it to use the other router with the better route. The switch also forwards the packet to the destination. Example The following command enables the generation of ICMP redirect messages on all VLANs: enable icmp redirects enable icmp time-exceeded enable icmp time-exceeded {vlan } Description Enables the generation of ICMP time exceeded messages on one or all VLANs. Syntax Description name Specifies a VLAN name. Default Enabled. Chapter 19. IP Unicast Commands | 863

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