Transition Networks
S4224 Web User Guide
33558 Rev. C
Page 44 of 669
S4224 DHCP Configuration Process
Notes
:
1. Software releases supporting DHCP Server: S3290 v 2.1.x and S42240, S4140 v 2.2.x.
2. To configure DHCP server you must have a VLAN interface setup with a valid IP address.
3. DHCP Server does not support addresses that come from a DHCP relay server. It must directly
handle relay packets.
4. May have to turn off some DHCP options in the DHCP client. See “DHCP Options Used” below.
5. DHCP works the same on 1G ports as on 10G ports.
6. S3290 DHCP supports multiple DHCP Pools (one Pool for each VLAN on multiple ports).
7. S3290 DHCP supports multiple Pools/VLANs serving addresses on a single port.
A. At Configuration > System > IP
DHCP clients require the S3290 to have a VLAN interface for the VLAN with a statically configured IP
address before the S3290 will assign IP addresses on that port.
This step does not necessarily need to
be completed before the next step, but it is recommended from a configuration perspective (i.e., if any
other VLAN configurations are to be completed)
.
1. Set up IP Configuration at
Configuration
>
System
>
IP
:
a. Configure IP Address and sub VLAN IDs for the VLANs that will serve the DHCP assigned IP
Address.
b. Choose either ‘
Router
’ mode or ‘
Host
’ mode and save.
Router
mode forwards traffic between
interfaces; it may make things more complicated if there are other DHCP servers on the network.
2. Set up IP Interfaces at
Configuration
>
System
>
IP
:
a. Click the
Add Interface
button.
b. Configure the Allowed VLAN range.
B. At Configuration > DHCP
3. Configure DHCP Server:
a. Enable Global Mode; click the
Add VLAN Range
button and configure VLAN Mode.
4. Configure Pool Setting.
Add a DHCP Address Pool at
Configuration
>
DHCP
>
Server
>
Pool
:
a. Add a Name and save the Pool entry.
b. Configure Type as ‘Host’ or ‘Network’.
Network
: the pool defines a pool of IP addresses to service
more than one DHCP client.
Host
: the pool services for a specific DHCP client identified by client
identifier or hardware address.
c. Configure the IP Address corresponding to the VLAN ID that will serve the addresses. This will
correspond to the IP address you configured at
Configuration
>
System
>
IP
in step 1a above.
(
Note
: for ‘Network’ Type, this will be a network address with an associated subnet mask. All
clients will take on the subnet mask configured.)
Note
: The IP address here should not be the router IP address unless you are in ‘Host’ mode and the
host you are configuring is the router.
d. Configure a subnet mask.
e. Configure the Lease time in days.
f. Configure the broadcast address. For example, for an address of 10.0.1.1/24 the notation would be
10.0.1.255.
g. Configure the default router. This will be the IP address entered as ‘Host’ in step 4b above.
h. Enter any additional configuration needed for the DHCP Setup and save.
5. Configure DHCP Snooping: enable Snooping Mode and configure Port Modes as required.
