DHCP Relay Commands
page 32-48 OmniSwitch 6250 CLI Reference Guide November 2009
The following example shows what the display output looks like when the DHCP relay agent information
(Option 82) feature is enabled and the DHCP Snooping feature is disabled:
-> show ip helper
Ip helper :
Forward Delay(seconds) = 3,
Max number of hops = 4,
Relay Agent Information = Enabled,
Relay Agent Information Policy = Drop
DHCP Snooping Status = Disabled
DHCP Snooping Bypass Opt82-Check = Disabled,
DHCP Snooping Opt82 Format = Base MAC,
DHCP Snooping Opt82 String = 00:d0:95:ae:3b:f6,
DHCP Snooping Binding DB Status = Disabled,
Forward option = standard
Vlan Number NA
Bootup Option Disable
Forwarding Address :
5.5.5.5
21.2.2.10
172.19.4.1
output definitions
Forward Delay The current forward delay time (default is three seconds). Use the
ip helper forward delay command to change this value.
Max number of hops The current maximum number of hops allowed (default is four
hops). Use the ip helper maximum hops command to change this
value.
Forward option The current forwarding option setting: standard. Configured
through the ip helper standard command.
Relay Agent Information Indicates the status (Enabled or Disabled) of the DHCP relay
agent information option (Option 82) feature. Configured through
the ip helper agent-information command. This feature is dis-
abled if the DHCP snooping feature is enabled.
Relay Agent Information Policy The current policy action (Drop, Keep, Replace) applied to DHCP
packets that contain an Option-82 field. Configured through the ip
helper agent-information policy command. Note that this field
only appears when the DHCP relay agent information Option-82
feature is enabled.
DHCP Snooping Status Indicates the status (Disabled, Switch-Level Enabled, or VLAN-
Level Enabled) of the DHCP snooping feature. Configured
through the ip helper dhcp-snooping or ip helper dhcp-snooping
vlan command. This feature is disabled if the DHCP relay agent
information option is enabled.
Option 82 Data Insertion Per
Switch
Indicates whether or not the DHCP Option 82 field is added to
DHCP packets (Enabled or Disabled). Configured through the ip
helper dhcp-snooping option-82 data-insertion command. Note
that this field only appears when DHCP snooping is enabled at the
switch level.
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