HP VPN Firewall Appliances Network Management Command Reference

153
Syntax
dhcp server client-detect enable
undo dhcp server client-detect enable
Default
The function is disabled.
Views
Interface view
Default command level
2: System level
Usage guidelines
With this feature enabled, the DHCP server considers that a DHCP client goes offline when the ARP entry
for the client ages out. In addition, it removes the client entry and releases the IP address of the client.
Examples
# Enable client offline detection on the DHCP server.
<Sysname> system-view
[Sysname] interface gigabitethernet 0/1
[Sysname-GigabitEthernet0/1] dhcp server client-detect enable
dhcp server detect
Use dhcp server detect to enable unauthorized DHCP server detection.
Use undo dhcp server detect to disable the function.
Syntax
dhcp server detect
undo dhcp server detect
Default
The function is disabled.
Views
System view
Default command level
2: System level
Usage guidelines
With this function enabled, upon receiving a DHCP request, the DHCP server records the IP addresses of
DHCP servers that offered IP addresses to the DHCP client and the receiving interface. Each detected
server is recorded only once. The administrator can use this information to check for unauthorized DHCP
servers.
Examples
# Enable unauthorized DHCP server detection.
<Sysname> system-view
[Sysname] dhcp server detect