Which command is required for connectivity in a Frame Relay network if Inverse ARP is not
operational?
A.
frame-relay interface-dlci
B.
frame-relay lmi-type
C.
frame-relay map
D.
frame-relay arp
Explanation:
When using dynamic address mapping, Inverse ARP requests a next-hop protocol address for
each active PVC. Once the requesting router receives an Inverse ARP response, it updates its
DLCI-to-Layer 3 address mapping table. Dynamic address mapping is enabled by default for all
protocols enabled on a physical interface. If the Frame Relay environment supports LMI
autosensing and Inverse ARP, dynamic address mapping takes place automatically. Therefore, no
static address mapping is required.
If the environment does not support LMI autosensing and Inverse ARP, a Frame Relay map must
be manually configured. Use the frame-relay map command to configure static address mapping.
Once a static map for a given DLCI is configured, Inverse ARP is disabled on that DLCI.