Dell PowerEdge M420 Configuration Manual page 939

Command
vlan-id
interface vlan
ip helper-address
server-address
{ |
dest-udp-port
discard} [
| dhcp | domain |
isakmp | mobile-ip |
nameserver | netbios-
dgm | netbios-ns | ntp |
pim-auto-rp | rip |
tacacs | tftp | time]
exit
exit
show ip helper-address
vlan-id
[vlan ]
show ip helper statistics View the number of DHCP and other UDP packets
Purpose
Enter interface configuration mode for the specified
VLAN routing interface.
You can also specify a range of VLAN routing interfaces
with the interface range vlan command, for example,
interface range vlan 10,20,30 configures VLAN interfaces
10, 20, and 30.
NOTE:
All VLANs must be configured as VLAN routing
interfaces.
Configure the relay of certain UDP broadcast packets
received on the VLAN routing interface(s). This command
takes precedence over an ip helper-address command given
in global configuration mode.
Specify the one of the protocols defined in the command
or the UDP port number.
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.
Exit to Global Config mode.
Exit to Privileged EXEC mode.
View IP helper (L3 relay) settings for all interfaces or for
the specified VLAN routing interface.
processed and relayed by the UDP relay agent. To reset the
statistics to 0, use the clear ip helper statistics command.
Configuring L2 and L3 Relay Features
939