
DHCP Relay Commands
OmniSwitch 6250 CLI Reference Guide
November 2009
page 32-3
ip helper address
Adds or deletes a DHCP server IP address. DHCP Relay forwards BOOTP/DHCP broadcasts to and from
the specified address. If multiple DHCP servers are used, configure one IP address for each server.
ip helper address ip_address
ip helper no address [ip_address]
Syntax Definitions
ip_address
DHCP server IP address (e.g. 21.0.0.10).
Defaults
N/A
Platforms Supported
OmniSwitch 6250
Usage Guidelines
•
Using this command enables a Global DHCP Relay service on the switch. When the DHCP Relay is
specified by the DHCP server IP address, the service is called Global DHCP.
•
When the DHCP Relay is specified by the VLAN number of the DHCP request, the service is referred
to as Per-VLAN DHCP.
•
Global DHCP and Per-VLAN DHCP are mutually exclusive. You may only configure one or the other.
•
Use the
no
form of this command to delete an IP address from the DHCP Relay service. If an address
is not specified, then all addresses are deleted.
•
UPD Relay is automatically enabled on a switch when a DHCP server IP address is defined. There is
no separate command for enabling or disabling the relay service.
•
Configure DHCP Relay on switches where packets are routed between IP networks.
•
You can configure up to 256 server IP addresses for one relay service.
Examples
-> ip helper address 75.0.0.10
-> ip helper no address 31.0.0.20
Release History
Release 6.6.1; command was introduced.
Summary of Contents for OmniSwitch 6250
Page 140: ...Power over Ethernet PoE Commands page 4 18 OmniSwitch 6250 CLI Reference Guide November 2009...
Page 212: ...Session Management Commands page 6 52 OmniSwitch 6250 CLI Reference Guide November 2009...
Page 270: ...File Management Commands page 7 58 OmniSwitch 6250 CLI Reference Guide November 2009...
Page 280: ...Web Management Commands page 8 10 OmniSwitch 6250 CLI Reference Guide November 2009...
Page 328: ...SNMP Commands page 10 32 OmniSwitch 6250 CLI Reference Guide November 2009...
Page 338: ...DNS Commands page 11 10 OmniSwitch 6250 CLI Reference Guide November 2009...
Page 392: ...Link Aggregation Commands page 12 54 OmniSwitch 6250 CLI Reference Guide November 2009...
Page 440: ...802 1Q Commands page 15 8 OmniSwitch 6250 CLI Reference Guide November 2009...
Page 628: ...Loopback Detection Commands page 17 12 OmniSwitch 6250 CLI Reference Guide November 2009...
Page 768: ...Ethernet Port Commands page 20 96 OmniSwitch 6250 CLI Reference Guide November 2009...
Page 826: ...VLAN Management Commands page 22 26 OmniSwitch 6250 CLI Reference Guide November 2009...
Page 968: ...Ethernet OAM Commands page 25 56 OmniSwitch 6250 CLI Reference Guide November 2009...
Page 1014: ...LINK OAM Commands page 26 46 OmniSwitch 6250 CLI Reference Guide November 2009...
Page 1036: ...UDLD Commands page 27 22 OmniSwitch 6250 CLI Reference Guide November 2009...
Page 1048: ...Port Mapping Commands page 28 12 OmniSwitch 6250 CLI Reference Guide November 2009...
Page 1256: ...IPv6 Commands page 30 90 OmniSwitch 6250 CLI Reference Guide November 2009...
Page 1276: ...RDP Commands page 31 20 OmniSwitch 6250 CLI Reference Guide November 2009...
Page 1372: ...RIP Commands page 33 32 OmniSwitch 6250 CLI Reference Guide November 2009...
Page 1702: ...QoS Policy Commands page 39 206 OmniSwitch CLI Reference Guide November 2009...
Page 1718: ...Policy Server Commands page 40 16 OmniSwitch 6250 CLI Reference Guide November 2009...
Page 2018: ...Index Index 6 OmniSwitch 6250 CLI Reference Guide November 2009...