Cisco Nexus 9000 Series - Configuring Unicast RPF for Cisco Nexus 9500 Switches with -R Line Cards

Configuring Unicast RPF for Cisco Nexus 9500 Switches with
-R Line Cards
You can configure unicast RPF on an ingress interface for Cisco Nexus 9500 Series switches with an -R line
card.
SUMMARY STEPS
1. configure terminal
2. interface ethernet slot/port
3. {ip | ipv6} address ip-address/length
4. {ip | ipv6} verify unicast source reachable-via any
5. (Optional) show ip interface ethernet slot/port
6. (Optional) show running-config interface ethernet slot/port
7. (Optional) copy running-config startup-config
DETAILED STEPS
PurposeCommand or Action
Enters global configuration mode.configure terminal
Example:
Step 1
switch# configure terminal
switch(config)#
Enters interface configuration mode.
interface ethernet slot/port
Example:
Step 2
switch(config)# interface ethernet 2/3
switch(config-if)#
Specifies an IPv4 or IPv6 address for the interface.
{ip | ipv6} address ip-address/length
Example:
Step 3
switch(config-if)# ip address 172.23.231.240/23
Configures unicast RPF on the interface for both IPv4 and
IPv6.
{ip | ipv6} verify unicast source reachable-via any
Example:
Step 4
When you enable uRPF for IPv4 or IPv6 (using
the ip or ipv6 keywords), uRPF is enabled for
both IPv4 and IPv6.
Note
switch(config-if)# ip verify unicast source
reachable-via any
Displays the IP information for an interface.
(Optional) show ip interface ethernet slot/port
Example:
Step 5
switch(config)# show ip interface ethernet 2/3
Cisco Nexus 9000 Series NX-OS Security Configuration Guide, Release 9.x
443
Configuring Unicast RPF
Configuring Unicast RPF for Cisco Nexus 9500 Switches with -R Line Cards