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.
Summary of Contents for 5500-EI PWR
Page 43: ...2 6...
Page 76: ...1 17...
Page 228: ...ii stp transmit limit 1 44 vlan mapping modulo 1 45 vlan vpn tunnel 1 46...
Page 477: ...5 24 Sysname vlan 2 Sysname vlan2 service type multicast...
Page 503: ...2 3 System View return to User View with Ctrl Z Sysname dot1x url http 192 168 19 23...
Page 519: ...iii...
Page 597: ...2 2 security policy server 192 168 0 1 user name format without domain...
Page 648: ...1 9 Examples Clear static ARP entries Sysname reset arp static...
Page 663: ...4 3 Sysname resilient arp interface vlan interface 2...
Page 767: ...1 28 From 12 00 Jan 1 2008 to 12 00 Jun 1 2008...
Page 1111: ...ii xmodem get 3 18...
Page 1314: ...A 44 Z...