Linksys SGE2000 Cisco Small Business SFE/SGE2xxx Series Managed Switches Admin - Page 221
Defining DHCP Relay (Layer 2), Configuring IP Information, Add UDP Relay
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Configuring IP Information IP Addressing Add UDP Relay Page 7 The Add UDP Relay Page contains the following fields: • Source IP Interface - Indicates the input IP interface that relays UDP packets. If this field is 255.255.255.255, UDP packets from all interfaces are relayed. The following address ranges are - 0.0.0.0 to 0.255.255.255. - 127.0.0.0 to 127.255.255.255. • UDP Destination Port- Indicate the destination UDP port ID number of the relayed UDP packets. The following table lists UDP Port allocations • Destination Address- The IP interface that receives UDP packet relays. If this field is 0.0.0.0, UDP packets are discarded. If this field is 255.255.255.255, UDP packets are flooded to all IP interfaces. STEP 3 Define the relevant fields. STEP 4 Click Apply. The UDP Relay Settings are defined, and the device is updated. Defining DHCP Relay (Layer 2) The DHCP Server Page enables users to establish a DHCP configuration with multiple DHCP servers to ensure redundancy. The DHCP servers act as a DHCP relay if the parameter is not equal to 0.0.0.0. DHCP requests are relayed only if their SEC field is greater or equal to the threshold value. This allows local DHCP Servers to respond first. The table on this page lists ports and LAGs on which DHCP relay has been enabled. To define the DHCP Relay configuration: Cisco Small Business SFE/SGE Managed Switches Administration Guide 212