F3726, F3211, F3174, R5135, R3816-HP Firewalls and UTM Devices Network Management Configuration Guide-6PW100

202
Task Command Remarks
Display Option 82 configuration
information on the DHCP relay agent.
display dhcp relay information { all |
interface interface-type interface-number }
[ | { begin | exclude | include }
regular-expression ]
Available in any
view.
Display information about bindings of
DHCP relay agents.
display dhcp relay security [ ip-address |
dynamic | static ] [ | { begin | exclude |
include } regular-expression ]
Available in any
view.
Display statistics information about
bindings of DHCP relay agents.
display dhcp relay security statistics [ |
{ begin | exclude | include }
regular-expression ]
Available in any
view.
Display information about the
refreshing interval for entries of
dynamic IP-to-MAC bindings.
display dhcp relay security tracker [ |
{ begin | exclude | include }
regular-expression ]
Available in any
view.
Display information about the
configuration of a specific or all DHCP
server groups.
display dhcp relay server-group { group-id
| all } [ | { begin | exclude | include }
regular-expression ]
Available in any
view.
Display packet statistics on the DHCP
relay agent.
display dhcp relay statistics [ server-group
{ group-id | all } ] [ | { begin | exclude |
include } regular-expression ]
Available in any
view.
Clear packet statistics on the DHCP
relay agent.
reset dhcp relay statistics [ server-group
group-id ]
Available in user
view.
521BDHCP relay agent configuration example
1247BNetwork requirements
As shown in 2420HFigure 122, the DHCP relay agent forwards DHCP messages between DHCP clients and the
DHCP server.
Because the DHCP relay agent and server are on different subnets, you need to configure static or
dynamic routing to make them reachable to each other.
DHCP server configuration is also required to guarantee the client-server communication through the
DHCP relay agent. For DHCP server configuration information, see "
2421HConfiguring the DHCP server."
Figure 122 Network diagram
Router
DHCP server
Firewall
DHCP relay agent
DHCP client DHCP client
DHCP clientDHCP client
GE0/2
10.1.1.2/24
GE0/1
10.10.1.1/24
GE0/1
10.1.1.1/24