TRENDnet TI-PG1284i User Manual page 139

TRENDnet User's Guide
VLAN 1 : port 1-10.
DHCP Client-1 : connect to port 3.
DHCP Server : connect to port 1.
Procedures:
1. Default environments:
A. DHCP Client-1: ipconfig /release
B. DHCP Client-1: ipconfig /renew
 DHCP Client-1 can get an IP address.
2. Enable the global DHCP Snooping.
A. TI-PG1284I(config)#dhcp-snooping
B. DHCP Client-1: ipconfig /release
C. DHCP Client-1: ipconfig /renew
 DHCP Client-1 can get an IP address.
3. Enable the global DHCP Snooping and VLAN 1 DHCP Snooping.
A. TI-PG1284I(config)#dhcp-snooping
B. TI-PG1284I(config)#dhcp-snooping vlan 1
C. DHCP Client-1: ipconfig /release
D. DHCP Client-1: ipconfig /renew
 DHCP Client-1 cannot get an IP address.
; Because the DHCP server connects to a un-trust port.
4. Enable the global DHCP Snooping and VLAN 1 DHCP Snooping.
A. TI-PG1284I(config)#dhcp-snooping
B. TI-PG1284I(config)#dhcp-snooping vlan 1
C. TI-PG1284I(config)#interface gi1/0/1
D. TI-PG1284I(config-if)#dhcp-snooping trust
E. DHCP Client-1: ipconfig /release
F. DHCP Client-1: ipconfig /renew
 DHCP Client-1 can get an IP address.
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5. If you configure a static host entry in the DHCP snooping binding table, and then
you want to change the host to DHCP client, the host will not get a new IP from
DHCP server, and then you must delete the static host entry first.
CLI Configuration
Node Command
enable show dhcp-snooping
configure dhcp-snooping
(disable|enable)
configure dhcp-snooping vlan
VLANID
configure no dhcp-snooping vlan
VLANID
configure dhcp-snooping server
IPADDR
interface dhcp-snooping host
interface no dhcp-snooping host
interface dhcp-snooping trust
interface no dhcp-snooping
trust
configure interface range
gigabitethernet1/0/
PORTLISTS
if-range dhcp-snooping host
if-range no dhcp-snooping host
TI-PG1284i
Description
This command displays the current DHCP
snooping configurations.
This command disables/enables the DHCP
snooping on the switch.
This command enables the DHCP snooping
function on a VLAN or range of VLANs.
This command disables the DHCP snooping
function on a VLAN or range of VLANs.
This command configures a valid DHCP server.
This command configures the maximum host
count for the specific port.
This command configures the maximum host
count to default for the specific port.
This command configures the trust port for
the specific port.
This command configures the un-trust port
for the specific port.
This command enters the interface configure
node.
This command configures the maximum host
count for the specific ports.
This command configures the maximum host
count to default for the specific ports.
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