DELL N3000 User Manual

Page of 1460
1108
Configuring L2 and L3 Relay Features
ip helper-address 
{
server-address
 | 
discard} [
dest-udp-port
 
| dhcp | domain | 
isakmp | mobile-ip | 
nameserver | netbios-
dgm | netbios-ns | ntp | 
pim-auto-rp | rip | 
tacacs | tftp | time]
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
Exit to Global Config mode.
exit
Exit to Privileged EXEC mode.
show ip helper-address 
[vlan 
vlan-id
]
View IP helper (L3 relay) settings for all interfaces or for 
the specified VLAN routing interface.
show ip helper statistics View the number of DHCP and other UDP packets 
processed and relayed by the UDP relay agent. To reset the 
statistics to 0, use the clear ip helper statistics command.
Command
Purpose