Manualsbrain.com
  1. Manuals
  2. Brands
  3. 3com
  4. 5500-ei pwr
  5. Reference Guide

3com 5500-ei pwr Reference Guide

Download
Page of 1314
 
3-6 
If you have configured a circuit ID with the vlan vlan-id argument specified, and the other one without 
the argument in Ethernet port view, the former circuit ID applies to the DHCP messages from the 
specified VLAN, while the latter one applies to DHCP messages from other VLANs. 
Examples 
# Set the circuit ID field in Option 82 of the DHCP messages sent through Ethernet 1/0/1 to abc. 
<Sysname> system-view 
System View: return to User View with Ctrl+Z. 
[Sysname] interface Ethernet1/0/1 
[Sysname-Ethernet1/0/1] dhcp-snooping information circuit-id string abc 
dhcp-snooping information vlan remote-id 
Syntax 
dhcp-snooping information [ vlan vlan-id ] remote-id string string 
undo dhcp-snooping information { [ vlan vlan-id ] remote-id | remote-id all } 
View 
Ethernet port view 
Parameters 
vlan vlan-id: Specifies the VLAN ID of the remote ID to be customized. 
string: Customized content of the remote ID sub-option, a string of 3 to 63 ASCII characters. 
Description 
Use the dhcp-snooping information vlan remote-id command to configure the content of the remote 
ID in Option 82 
Use the undo dhcp-snooping information remote-id command to restore the default remote ID in 
Option 82. 
With vlan vlan-id specified, the customized remote ID sub-option applies only to the DHCP packets 
from the specified VLAN. Without vlan vlan-id specified, the customized remote ID sub-option applies 
to all DHCP packets that pass through the current port. 
Use the undo dhcp-snooping information vlan vlan-id remote-id command to restore the default 
remote ID in DHCP packets from the specified VLAN. 
Use the undo dhcp-snooping information remote-id command to restore the default remote ID in all 
DHCP packets except those from the specified VLAN. 
Use the undo dhcp-snooping information remote-id all command to restore the default remote ID in 
all DHCP packets. 
By default, the remote ID sub-option in Option 82 is the MAC address of the DHCP Snooping device 
that received the DHCP client’s request. 
If you have configured a remote ID with the vlan vlan-id argument specified, and the other one without 
the argument in Ethernet port view, the former remote ID applies to the DHCP messages from the 
specified VLAN, while the latter one applies to DHCP messages from other VLANs.