Configuration Guide User guide

1588 FastIron Configuration Guide
53-1002494-02
Using ACLs to control multicast features
NOTE
An IP tunnel must have a remote IP interface at each end. Also, for IP tunneling to work, the remote
routers must be reachable by an IP routing protocol.
NOTE
Multiple tunnels configured on a router cannot share the same remote address.
Example
To configure an IP tunnel as seen in Figure 178, enter the IP tunnel destination address on an
interface of the router.
To configure an IP address on Router A, enter the following commands.
FastIron(config)#int e1
FastIron(config-if-1)#ip tunnel 192.3.45.6
NOTE
The IP tunnel address represents the configured IP tunnel address of the destination router. In the
case of Router A, its destination router is Router B. Router A is the destination router of Router B.
For router B, enter the following.
FastIron(config-if-1)#ip tunnel 192.58.4.1
FIGURE 180 IP in IP tunneling on multicast packets in a unicast network
Using ACLs to control multicast features
You can use ACLs to control the following multicast features:
• Limit the number of multicast groups that are covered by a static rendezvous point (RP)
• Control which multicast groups for which candidate RPs sends advertisement messages to
bootstrap routers
• Identify which multicast group packets will be forwarded or blocked on an interface
Using ACLs to limit static RP groups
You can limit the number of multicast groups covered by a static RP using standard ACLs. In the
ACL, you specify the group to which the RP address applies. The following examples set the RP
address to be applied to multicast groups with some minor variations.
Router
Router
Router
Router A
Router B
Router
Group
Member
Group
Member
Group
Member
Group
Member
Group
Member
Group
Member
FastIron
Multicast Capable Router
Non-Multicast
Capable Routers
FastIron
Multicast Capable Router
...
...
192.58.4.1
192.3.45.6
IP Tunnel IP Tunnel