Configuration Examples For Unicast Rpf - Cisco Nexus 9000 Series Configuration Manual

Configuration Examples for Unicast RPF

Command or Action
switch(config-if)# exit
switch(config)#
Step 7 (Optional) show ip interface ethernet slot/port
Example:
switch(config)# show ip interface ethernet 1/54 |
grep -i "unicast reverse path forwarding"
IP unicast reverse path forwarding: none
Step 8
(Optional) show running-config interface ethernet
slot/port
Example:
switch(config)# show running-config interface
ethernet 2/3
Step 9
(Optional) copy running-config startup-config
Example:
switch(config)# copy running-config startup-config
Configuration Examples for Unicast RPF
The following example shows how to configure loose unicast RPF for IPv4 packets on a Cisco Nexus 9500
Series switch with an -R line card:
interface Ethernet2/3
ip address 172.23.231.240/23
ip verify unicast source reachable-via any
The following example shows how to configure loose unicast RPF for IPv6 packets on a Cisco Nexus 9500
Series switch with an -R line card:
interface Ethernet2/1
ipv6 address 2001:0DB8:c18:1::3/64
ipv6 verify unicast source reachable-via any
The following example shows how to configure loose unicast RPF for IPv4 packets on a Cisco Nexus 9300
platform switch:
no system urpf disable
interface Ethernet2/3
ip address 172.23.231.240/23
ip verify unicast source reachable-via any
The following example shows how to configure loose unicast RPF for IPv6 packets on a Cisco Nexus 9300
platform switch:
no system urpf disable
interface Ethernet2/1
ipv6 address 2001:0DB8:c18:1::3/64
ipv6 verify unicast source reachable-via any
Cisco Nexus 9000 Series NX-OS Security Configuration Guide, Release 9.x
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Purpose
Displays the IP information for an interface and verifies if
Unicast RPF is enabled.
Displays the configuration for an interface in the running
configuration.
Copies the running configuration to the startup
configuration.
Configuring Unicast RPF