Ip Helper-Address (Interface Config) - NETGEAR M6100 Series Reference Manual

Hide thumbs Also See for M6100 Series:

Table of Contents

Command example:

The following example relays DHCP packets that are received on any interface to two DHCP

servers, 10.1.1.1 and 10.1.2.1:

(NETGEAR Switch)#config

(NETGEAR Switch)(config)#ip helper-address 10.1.1.1 dhcp

(NETGEAR Switch)(config)#ip helper-address 10.1.2.1 dhcp

Command example:

The following example relays UDP packets that are received on any interface for all default

ports to the server at 20.1.1.1:

(NETGEAR Switch)#config

(NETGEAR Switch)(config)#ip helper-address 20.1.1.1

no ip helper-address (Global Config)

Use the no ip helper-address command to delete an IP helper entry. Use the command

without any arguments to clear all global IP helper addresses.

no ip helper-address [server-address] [dest-udp-port | dhcp | domain | isakmp

| tacacs | tftp | time]

Global Config

ip helper-address (Interface Config)

Use this command to configure the relay of certain UDP broadcast packets received on a

specific interface or range of interfaces. This command can be invoked multiple times on a

routing interface, either to specify multiple server addresses for a given port number or to

specify multiple port numbers handled by a specific server.

No helper addresses are configured.

ip helper-address {server-address | discard} [dest-udp-port | dhcp | domain |

pim-auto-rp | rip | tacacs | tftp | time]

Interface Config

server-address

The IPv4 unicast or directed broadcast address to which relayed UDP broadcast packets are sent.

The server address cannot be in a subnet on the interface where the relay entry is configured, and

cannot be an IP address configured on any interface of the local router.

Matching packets should be discarded rather than relayed, even if a global ip helper-address

configuration matches the packet.

M6100 Series Switches

Routing Commands

Table of Contents