Defining Udp Relay - Cisco 500 series Administration Manual

Configuring IP Information

Defining UDP Relay

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STEP 3
Defining UDP Relay
STEP 1
STEP 2
STEP 3
Cisco 500 Series Stackable Managed Switch Administration Guide
The ARP Proxy is aware of the traffic destination, and offers another MAC address
in reply. Serving as an ARP Proxy for another host effectively directs LAN traffic
destination to the host. The captured traffic is then typically routed by the Proxy to
the intended destination by using another interface, or by using a tunnel.
The process in which an ARP query request for a different IP address, for proxy
purposes, results in the node responding with its own MAC address is sometimes
referred to as publishing.
This page enables configuring the status of the ARP proxy feature. After it is
enabled on this page, it is enabled on all of the IP interfaces.
To enable ARP Proxy on the switch:
Click IP Configuration > Enabling ARP Proxy.
The ARP Proxy page opens.
Select ARP Proxy to enable the switch to respond to ARP requests for remotely-
located nodes with the switch MAC address.
Click Apply. The ARP proxy is enabled, and the Running Configuration file is
updated.
The UDP Relay feature is only available when the switch is in Layer 3 system
mode. Switches do not typically route IP broadcast packets between IP subnets.
However, if configured, the switch can relay specific UDP Broadcast packets,
received from its IPv4 interfaces, to specific destination IP addresses.
To configure the relaying of UDP packets received from a specific IPv4 interface
with a specific destination UDP port, add a UDP Relay:
Click IP Configuration > Defining UDP Relay. The UDP Relay page opens.
Click Add. The Add UDP Relay page opens.
Select the Source IP Interface to where the switch is to relay UDP Broadcast
packets based on a configured UDP destination port. The interface must be one of
the IPv4 interfaces configured on the switch.
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