display dhcp server conflict
Use display dhcp server conflict to display information about IP address conflicts.
Syntax
display dhcp server conflict [ ip ip-address ] [ vpn-instance vpn-instance-name ]
Views
Any view
Predefined user roles
network-admin
network-operator
mdc-admin
mdc-operator
Parameters
ip ip-address: Displays conflict information about the specified IP address. If you do not specify this option, this command displays information about all IP address conflicts.
vpn-instance vpn-instance-name: Specifies an MPLS L3VPN instance by its name, a case-sensitive string of 1 to 31 characters. If you do not specify a VPN instance, this command displays IP address conflict information for the public network.
Usage guidelines
The DHCP server generates IP address conflict information in the following situations:
Before assigning an IP address to a DHCP client, the DHCP server pings the IP address and discovers that another host is using the address.
The DHCP client sends a DECLINE packet to the DHCP server to inform the server of an IP address conflict.
The DHCP server discovers that the only assignable address in the address pool is its own IP address.
Examples
# Display information about all IP address conflicts.
<Sysname> display dhcp server conflict IP address Detect time 4.4.4.1 Apr 25 16:57:20 2007 4.4.4.2 Apr 25 17:00:10 2007
Table 5: Command output
Field | Description | |
|---|---|---|
IP address | Conflicted IP address. | |
Detect time | Time when the conflict was discovered. | |
Related commands
reset dhcp server conflict