Use A Prefix List For Route Redistribution - Dell Force10 C150 Configuration Manual

Figure 8-15. Command example:
FTOS>show ip prefix detail
Prefix-list with the last deletion/insertion: filter_ospf
ip prefix-list filter_in:
count: 3, range entries: 3, sequences: 5 - 10
seq 5 deny 1.102.0.0/16 le 32 (hit count: 0)
seq 6 deny 2.1.0.0/16 ge 23 (hit count: 0)
seq 10 permit 0.0.0.0/0 le 32 (hit count: 0)
ip prefix-list filter_ospf:
count: 4, range entries: 1, sequences: 5 - 10
seq 5 deny 100.100.1.0/24 (hit count: 0)
seq 6 deny 200.200.1.0/24 (hit count: 0)
seq 7 deny 200.200.2.0/24 (hit count: 0)
seq 10 permit 0.0.0.0/0 le 32 (hit count: 0)
FTOS>
Figure 8-16. Command Example: show ip prefix-list summary
FTOS>show ip prefix summary
Prefix-list with the last deletion/insertion: filter_ospf
ip prefix-list filter_in:
count: 3, range entries: 3, sequences: 5 - 10
ip prefix-list filter_ospf:
count: 4, range entries: 1, sequences: 5 - 10
FTOS>

Use a prefix list for route redistribution

To pass traffic through a configured prefix list, you must use the prefix list in a route redistribution
command. The prefix list is applied to all traffic redistributed into the routing process and the traffic is
either forwarded or dropped depending on the criteria and actions specified in the prefix list.
To apply a filter to routes in RIP (RIP is supported on C and E-Series.), use either of the following
commands in the ROUTER RIP mode:
Command Syntax
router rip
distribute-list
prefix-list-name
[ ]
interface
distribute-list
prefix-list-name
connected
[ |
interface
To view the configuration, use the
show running-config rip
156 | IP Access Control Lists (ACL), Prefix Lists, and Route-maps
show ip prefix-list detail
Command Mode
CONFIGURATION
in
CONFIG-ROUTER-RIP
out
CONFIG-ROUTER-RIP
static ospf ]
| |
show config
command in the EXEC mode.
Purpose
Enter RIP mode
Apply a prefix list to filter the network
prefixes in incoming route updates. You can
specify an interface.
If you enter the name of a nonexistent prefix
list, all routes are forwarded.
Apply a prefix list to filter network prefixes
advertised in outgoing route updates. You
can specify an interface or type of route.
If you enter the name of a non-existent prefix
list, all routes are forwarded.
command in the ROUTER RIP mode (Figure 240) or the