An engineer must implement Strict Unicast Reverse Path Forwarding mode for IPv4 packets on the Etnerret1/1 interface on the Cisco Nexus 9500 Series Switch.
Which configuration achieves this goal?
An engineer must implement Strict Unicast Reverse Path Forwarding mode for IPv4 packets on the Etnerret1/1 interface on the Cisco Nexus 9500 Series Switch.
Which configuration achieves this goal?
Strict Unicast Reverse Path Forwarding (uRPF) mode for IPv4 packets on a Cisco switch requires that the source address of incoming packets must be reachable via the same interface they were received on. This is implemented by using the 'reachable-via rx' option in the configuration. Therefore, to implement strict uRPF mode on the Ethernet1/1 interface, the configuration should include 'ip verify unicast source reachable-via rx'. The option correctly providing this configuration is A.
To implement Strict Unicast Reverse Path Forwarding (uRPF) mode for IPv4 packets on the Ethernet1/1 interface on a Cisco Nexus 9500 Series Switch, you would use the reachable-via rx option. This ensures that the source address of the incoming packet is reachable via the same interface it was received on, which is the definition of strict mode for uRPF. will go with A
I'm going with C with the 'via any' vs. 'via rx' I'm not sure the difference and what in the question indicates should be any vs rx...however the configuration guide, every example SPECIFICALLY for the 9500 uses the 'any' syntax 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 strict unicast RPF for IPv4 packets on a Cisco Nexus 9300 platform switch: no system urpf disable interface Ethernet2/2 ip address 172.23.231.240/23 ip verify unicast source reachable-via rx
i know the difference of 'any' vs. 'rx' directional wise, just not the context for the question. no mention of direction needs.
{ip | ipv6} verify unicast source reachable-via {any [allow-default] | rx} Example: switch(config-if)# ip verify unicast source reachable-via any The ANSWER is <<< A >>>
rx is the one ! A!