Ip Helper-Address (Interface Configuration) - Dell PowerConnect 8024 Cli Reference Manual

console(config)#ip helper-address 10.1.1.1 dhcp
console(config)#ip helper-address 10.1.2.1 dhcp
To relay UDP packets received on any interface for all default
ports (Table 4) to the server at 20.1.1.1, use the following
commands:
console#config
console(config)#ip helper-address 20.1.1.1

ip helper-address (interface configuration)

Use the ip helper-address (interface configuration) command to configure the relay of certain
UDP broadcast packets received on a specific interface. To delete a relay entry on an interface,
use the no form of this command.
Syntax
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 ]
server-address
no ip helper-address [
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.
• discard — Matching packets should be discarded rather than relayed, even if a global ip
helper-address configuration matches the packet.
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 (port 53), isakmp (port 500), mobile-ip (port 434),
nameserver (port 42), netbios-dgm (port 138), netbios-ns (port 137), ntp (port 123), pim-
auto-rp (port 496), rip (port 520), tacacs (port 49), tftp (port 69), and time (port 37). Other
ports must be specified by number.
Default Configuration
No helper addresses are configured.
dest-udp-port
| discard ] [ | dhcp | domain | isakmp |
IP Helper Commands
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