DELL N3000 User Manual

Configuring L2 and L3 Relay Features

configuration for the destination UDP port. If so, the relay agent unicasts the 

packet to the configured server IP addresses. Otherwise the packet is not 

relayed.

The relay agent relays packets that meet only the following conditions:

• The destination MAC address must be the all-ones broadcast address 

(FF:FF:FF:FF:FF:FF).

• The destination IP address must be the limited broadcast address 

(255.255.255.255) or a directed broadcast address for the receive interface. 

• The IP time-to-live (TTL) must be greater than 1.
• The protocol field in the IP header must be UDP (17).
• The destination UDP port must match a configured relay entry.

If the packet matches a discard relay entry on the ingress interface, the 

packet is not forwarded, regardless of the global configuration.