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IP Routing Features
Overview of IP Routing
Directed
broadcast
forwarding
A directed broadcast is a packet containing all ones (or in
some cases, all zeros) in the host portion of the destination
IP address. When a router forwards such a broadcast, it
sends a copy of the packet out each of its enabled IP
interfaces.
Note: You also can enable or disable this parameter on an
individual interface basis. See table 16-2 on page 16-8.
Disabled 16-13
ICMP Router
Discovery
Protocol (IRDP)
An IP protocol that a router can use to advertise the IP
addresses of its router interfaces to directly attached
hosts. You can enable or disable the protocol at the Global
CLI Config level.
You also can enable or disable IRDP and configure the
following protocol parameters on an individual VLAN
interface basis at the VLAN Interface CLI Config level.
• Forwarding method (broadcast or multicast)
• Hold time
• Maximum advertisement interval
• Minimum advertisement interval
• Router preference level
Disabled 16-69
16-70
Static route An IP route you place in the IP route table. No entries 16-16
Default
network route
The router uses the default network route if the IP route
table does not contain a route to the destination. For the
Series 5300XL Switches, enter an explicit default route
(0.0.0.0 0.0.0.0 or 0.0.0.0/0) as a static route in the IP route
table.
None configured 16-19
Parameter Description Default See page
16-7