3-4
Use the
undo
dhcp-snooping information remote-id
command to restore the default value of the
remote ID sub-option in Option 82.
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.
Examples
# Configure the remote ID sub-option of Option 82 as the system name (sysname) of the DHCP
snooping device.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] dhcp-snooping information remote-id sysname
dhcp-snooping information strategy
Syntax
dhcp-snooping information strategy
{
drop
|
keep
|
replace
}
undo dhcp-snooping information strategy
View
System view, Ethernet port view
Parameters
drop
: If a packet contains Option 82, DHCP snooping drops this packet.
keep
: If a packet contains Option 82, DHCP snooping keeps and forwards this packet.
replace
: If a packet contains Option 82, DHCP snooping replaces the original Option 82 field with the
Option 82 field having the specified padding content and forwards the packet.
Description
Use the
dhcp-snooping information strategy
command in system view to configure a handling policy
for DHCP requests that contain Option 82 sent by the DHCP client.
Use the
undo dhcp-snooping information strategy
command to restore the default handling policy.
Use the
dhcp-snooping information strategy
command in Ethernet port view to configure a handling
policy for requests that contain Option 82 received on the current port.
Use the
undo dhcp-snooping information strategy
command to restore the default handling policy.
By default, after DHCP-snooping Option 82 support is enabled, DHCP snooping replaces the Option 82
field in the requests sent by the DHCP clients.
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...