ATM Inarp and static map

From: Dmitry Volkov (dmitry.volkov@rogers.com)
Date: Tue Jan 20 2004 - 15:18:13 GMT-3


Hi,

the following config (for lab/test/curiosity purposes):
r6#
interface ATM0
 ip address 192.168.1.6 255.255.255.0
 ip ospf network point-to-point
 pvc 2/114
  protocol ip 192.168.1.9 broadcast <-------
  broadcast
  protocol ip inarp <--------
 !
 no atm ilmi-keepalive

r9#
interface ATM0
 ip address 192.168.1.9 255.255.255.0
 ip ospf network point-to-point
 pvc 0/113
  broadcast
 !
 no atm ilmi-keepalive

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fwan
_c/wcfatm.htm#1001268
"Inverse ARP is enabled by default when you create a PVC using the pvc
command. Once configured, a protocol mapping between an ATM PVC and a
network address is learned dynamically as a result of the exchange of ATM
Inverse ARP packets.

Inverse ARP is supported on PVCs running IP or IPX and no static map is
configured. If a static map is configured, Inverse ARP will be DISABLED."

In the above config despite I enabled inarp explicitly - it's actually
doesn't work -
I mean inarping (debug shows that r9 does inarp request, r6 doesn't answer).
I understand that it's probably meaningless to have static map and inarp
together. However IOS allows config them under the same pvc.

Question is: Is it expectable/normal that inarp still disabled in the above
config despite "protocol ip inarp" is configured ?

Thanks,
Dmitry



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