Dell POWEREDGE M1000E - Manual (Page 905)

IP Helper/DHCP Relay Commands 905
Command Mode
Interface (VLAN) Configuration mode
User Guidelines
Enable DHCP Relay using the ip helper enable command. The interface
configuration always takes precedence over global configuration. However, if
there is no interface configuration, then global configuration is followed.
Example
The following example enables the circuit ID and remote agent ID options on
vlan 10.
console(config)#interface vlan 10
console(config-if-vlan10)#ip dhcp relay information option-insert
ip helper-address (global configuration)
Use the ip helper-address (global configuration) command to configure the
relay of certain UDP broadcast packets received on any interface. To delete an
IP helper entry, use the no form of this command.
Syntax
ip helper-address server-address [ dest-udp-port | dhcp | domain | isakmp |
mobile-ip | nameserver | netbios-dgm | netbios-ns | ntp | pim-auto-rp | rip
| tacacs | tftp | time ]
no ip helper-address [
server-address ] [ dest-udp-port | dhcp | domain |
isakmp | mobile-ip | nameserver | netbios-dgm | netbios-ns | ntp | pim-
auto-rp | rip | tacacs | tftp | time ]
• server-address — The IPv4 unicast or directed broadcast address to which
relayed UDP broadcast packets are sent. The server address cannot be an
IP address configured on any interface of the local router.
• dest-udp-port — A destination UDP port number from 0 to 65535.
• port-name — The destination UDP port may be optionally specified by its
name. Whether a port is specified by its number or its name has no effect
on behavior. The names recognized are as follows: dhcp (port 67), domain
2CSPC4.XModular-SWUM200.book Page 905 Thursday, March 10, 2011 11:18 AM