Frame Relay
525
frame-relay interface-dlci 107
!
interface Serial0.108 point-to-point
ip address 10.1.18.1 255.255.255.0
no ip directed-broadcast
appletalk cable-range 18-18 18.43
appletalk zone wan8
appletalk protocol eigrp
no appletalk protocol rtmp
ipx network 18
frame-relay interface-dlci 108
Mapping Frame Relay
As we explained earlier, in order for IP devices at the ends of virtual circuits
to communicate, their addresses must be mapped to the DLCIs. There are
two ways to make this mapping happen:
Use the frame-relay map command.
Use the inverse-arp function.
Here's an example using the frame-relay map command on a multipoint
Frame Relay network:
RouterA(config)#int s0
RouterA(config-if)#encap frame
RouterA(config-if)#int s0.16 multipoint
RouterA(config-subif)#no inverse-arp
RouterA(config-subif)#ip address 172.16.30.1
255.255.255.0
RouterA(config-subif)#frame-relay map ip 172.16.30.17 16
ietf broadcast
RouterA(config-subif)#frame-relay map ip 172.16.30.18 17
broadcast
RouterA(config-subif)#frame-relay map ip 172.16.30.19 18
Here's what we did: First, we configured interface serial 0 to use the
encapsulation type of Cisco (default), then we created our subinterface. We
then turned off inverse arp and mapped three virtual circuits and their
corresponding DLCI numbers.
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