Riverstone Networks WICT1-12 11.2 CONFIGURING IP INTERFACES AND

11-2 Riverstone Networks RS Switch Router User Guide Release 8.0
Configuring IP Interfaces and Parameters IP Routing Configuration Guide
Multicast routing protocols are used to determine which routers have directly attached hosts, as specified by IGMP,
that have membership to a multicast session. Once host memberships are determined, routers use multicast routing
protocols, such as DVMRP, to forward multicast traffic between routers.
The RS supports the following multicast routing protocols:
•Distance Vector Multicast Routing Protocol (DVMRP) RFC 1075
•Internet Group Management Protocol (IGMP) as described in RFC 2236
The RS also supports the latest DVMRP Version 3.0 draft specification, which includes mtrace, Generation ID and
Pruning/Grafting. Configuring multicast routing for the RS is described in Chapter 19, "Multicast Routing
Configuration."
11.2 CONFIGURING IP INTERFACES AND
PARAMETERS
You can configure an IP interface to a single port or to a VLAN. This section provides an overview of configuring IP
interfaces.
Interfaces on the RS are logical interfaces. Therefore, you can associate an interface with a single port or with multiple
ports:
•To associate an interface with a single port, use the port option with the interface create
command.
•To associate an interface with multiple ports, first create an IP VLAN and add ports to it, then use
the vlan option with the interface create command.
The interface create ip command creates and configures an IP interface. Configuration of an IP interface can
include information such as the interface’s name, IP address, netmask, broadcast address, and so on. You can also
create an interface in a disabled (down) state instead of the default enabled (up) state.
Note You must use either the port option or the vlan option with the interface
create command.
11.2.1 Configuring IP Interfaces to Ports
You can configure an IP interface directly to a physical port. Each port can be assigned multiple IP addresses
representing multiple subnets connected to the physical port. For example, to assign an IP interface ‘RED’ to physical
port et.3.4, enter the following:
To configure a secondary address of 10.23.4.36 with a 24-bit netmask (255.255.255.0) on the IP interface int4:
rs(config)# interface create ip RED address-netmask
10.50.0.0/255.255.0.0 port et.3.4
rs(config)# interface add ip int4 address-netmask 10.23.4.36/24