Lab 9. Frame Relay (Main Interface Mapping + Multipoint Subinterface: Static Mapping)

R1#sh run | sec Serial0/0
interface Serial0/0
no ip address
encapsulation frame-relay

interface Serial0/0.1 point-to-point
ip address 12.12.12.1 255.255.255.0
frame-relay interface-dlci 102

R2#sh run | sec Serial0/0
interface Serial0/0
ip address 12.12.12.2 255.255.255.0
encapsulation frame-relay
frame-relay map ip 12.12.12.1 201 broadcast

Let's check the mapping

R1#sh fram map
Serial0/0.1 (up): point-to-point dlci, dlci 102(0x66,0x1860), broadcast
status defined, active

R2#sh fram map
Serial0/0 (up): ip 12.12.12.1 dlci 201(0xC9,0x3090), static,
broadcast,
CISCO, status defined, active

R1 does not need mapping to specific IP as using point-to-point subinterface but R2 need mapping as using static mapping.