
Configuring Topologies
Layer 3 Configuration
SCALANCE WLC711
4-8 C79000-G8976-C260-03, 07/2012, User Guide, V8.11
DHCP Configuration
You can configure DHCP settings for all modes except Bridge Traffic Locally at AP mode since all
traffic for users in that VNS will be directly bridged by the Wireless AP at the local network point
of attachment (VLAN at AP port). DHCP assignment is disabled by default for Bridged to VLAN
mode. However, you can enable DHCP server/relay functionality to have the controller service the
IP addresses for the VLAN (and wireless users).
To Configure DHCP Options:
1. Navigate to the Topology page.
2. On the Topology page, click the General tab and enable Layer 3.
3. From the DHCP drop-down list, select one of the following options and click the Configure
button.
– Local Server if the SCALANCE IWLAN Controller's local DHCP server is used for
managing IP address allocation.
– Use Relay if the SCALANCE IWLAN Controller forwards DHCP requests to an external
DHCP server on the enterprise network. DHCP relay bypasses the local DHCP server for
the SCALANCE IWLAN Controller and allows the enterprise to manage IP address
allocation to a VNS from its existing infrastructure.
4. If you selected Local Server, the following window displays. Configure the following
parameters:
a. In the Domain Name box, type the external enterprise domain name server to be used.
b. In the Lease default box, type the default time limit. The default time limit dictates how
long a wireless device can keep the DHCP server assigned IP address. The default value is
36000 seconds (10 hours).
c. In the DNS Servers box, type the IP Address of the Domain Name Servers to be used.
d. In the WINS box, type the IP address if the DHCP server uses Windows Internet Naming
Service (WINS).
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