From: Mark, Detrick (mdetrick@xxxxxxxxx)
Date: Mon May 17 1999 - 19:21:21 GMT-3
Here it is...
http://www.cisco.com/univercd/cc/td/doc/product/software/ios112/112cg_cr/4cb
ook/4cfrelay.htm
Excerpt:
Configure Dynamic or Static Address Mapping
Dynamic address mapping uses Frame Relay Inverse ARP to request the next hop
protocol address for a specific connection, given its known DLCI. Responses
to Inverse ARP requests are entered in an address-to-DLCI mapping table on
the router or access server; the table is then used to supply the next hop
protocol address or the DLCI for outgoing traffic.
Inverse ARP is enabled by default for all protocols it supports, but can be
disabled for specific protocol-DLCI pairs. As a result, you can use dynamic
mapping for some protocols and static mapping for other protocols on the
same DLCI. You can explicitly disable Inverse ARP for a protocol-DLCI pair
if you know that the protocol is not supported on the other end of the
connection. See the "Disable or Reenable Frame Relay Inverse ARP" section
later in this chapter for more information.
Configure Dynamic Mapping
Inverse ARP is enabled by default for all protocols enabled on the physical
interface. Packets are not sent out for protocols that are not enabled on
the interface.
Because Inverse ARP is enabled by default, no additional command is required
to configure dynamic mapping on an interface.
The mapping table mentioned above is the frame map ip ... statement.
tiger#sh fram pvc
PVC Statistics for interface Serial0 (Frame Relay DTE)
DLCI = 107, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0.1
input pkts 21130 output pkts 21073 in bytes 2172488
out bytes 2189930 dropped pkts 44 in FECN pkts 0
in BECN pkts 0 out FECN pkts 0 out BECN pkts 0
in DE pkts 0 out DE pkts 0
out bcast pkts 21005 out bcast bytes 2183020
pvc create time 2d02h, last time pvc status changed 1d21h
DLCI = 127, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0.2
input pkts 11932 output pkts 13658 in bytes 821792
out bytes 995458 dropped pkts 87 in FECN pkts 0
in BECN pkts 0 out FECN pkts 0 out BECN pkts 0
in DE pkts 0 out DE pkts 0
out bcast pkts 7149 out bcast bytes 616451
pvc create time 2d02h, last time pvc status changed 1d21h
DLCI = 147, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0.2
input pkts 10256 output pkts 13069 in bytes 760632
out bytes 951685 dropped pkts 75 in FECN pkts 0
in BECN pkts 0 out FECN pkts 0 out BECN pkts 0
in DE pkts 0 out DE pkts 0
out bcast pkts 7149 out bcast bytes 616451
pvc create time 2d02h, last time pvc status changed 1d21h
tiger#
Mark Detrick
DSL Business Unit
Cisco Systems
2569 McCabe Way
Irvine, CA 92614
Mark Detrick
DSL Business Unit
Cisco Systems
2569 McCabe Way
Irvine, CA 92614
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